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FamilyTreeDNA is a division of Gene by Gene, a commercial
genetic testing Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or ...
company based in
Houston Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 i ...
,
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by b ...
. FamilyTreeDNA offers analysis of
autosomal DNA An autosome is any chromosome that is not a sex chromosome. The members of an autosome pair in a diploid cell have the same morphology, unlike those in allosomal (sex chromosome) pairs, which may have different structures. The DNA in autosomes ...
,
Y-DNA The Y chromosome is one of two sex chromosomes (allosomes) in therian mammals, including humans, and many other animals. The other is the X chromosome. Y is normally the sex-determining chromosome in many species, since it is the presence or abs ...
, and
mitochondrial DNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DN ...
to individuals for genealogical purpose. With a database of more than two million records, it is the most popular company worldwide for Y-DNA and mitochondrial DNA, and the fourth most popular for autosomal DNA. In Europe, it is the most common also for autosomal DNA. FamilyTreeDNA as a division of Gene by Gene were acquired by MYDNA, Inc., an Australian company in January 2021.


History


Concept and founding (2000–2002)

FamilyTreeDNA was founded based on an idea conceived by
Bennett Greenspan Bennett C. Greenspan (born 1952) is an American businessman. His business ventures have covered industries from real estate to the .com boom. Though he has mainly worked in the fields of photography and genetic testing, he is best known for his ...
, a lifelong entrepreneur and genealogy enthusiast. In 1999, Greenspan had entered semi-retirement and was working on his family history. He began work on his mother's Nitz lineage. When faced with a roadblock in his work, he remembered two cases of genetics being used to prove ancestry that had recently been covered by the media. These were a study by University of Arizona researchers showing that many Cohen men from both Ashkenazic and Sephardic groups share the same Y-chromosome and a study that showed that male descendants of a paternal uncle of US President
Thomas Jefferson Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Father who served as the third president of the United States from 1801 to 1809. He was previously the natio ...
(who presumably shared his Y-chromosome) and male-line descendants of his freed slave Sally Hemings shared the same Y-chromosome and a recent common ancestry. Greenspan had both Nitz cousins in California and had discovered someone in Argentina with the same ancestral surname and the same ancestral location in Eastern Europe. Wishing to use the same method of DNA comparison for his own genealogy, he contacted Dr. Michael Hammer at the University of Arizona. Greenspan discovered that academic labs did not offer testing directly to the public and that in general direct to consumer testing for genealogy was not commercially available either. Their conversation inspired him to start a company dedicated to using genetics to solve genealogy problems. It was early 2000 when Greenspan with his business partners Max Blankfeld and Jim Warren officially launched FamilyTreeDNA. Initially, the Arizona Research Labs at the University of Arizona performed all testing for FamilyTreeDNA. FamilyTreeDNA includes among its scientific staff, Dr. Michael Hammer (PhD), one of a team of scientists that first published on the Cohen Modal Haplotype in 1997 in the journal Nature. FamilyTreeDNA began with a proof in concept group of twenty-four that returned results in January. They began by offering 12 Y-chromosome STR marker tests much like those used in many scientific publications of the time in March 2000. FamilyTreeDNA became widely known for its Y-chromosome STR testing for the Cohen Modal Haplotype. Soon, they were offering not only DNA tests but an interface by which dedicated genealogists could run surname research studies. The first person to create such a project through the FamilyTreeDNA site was Doug Mumma, hence it was called the Mumma project.


Early testing (2000–2006)

The first tests offered by FamilyTreeDNA were Y-chromosome STR and mitochondrial DNA (
mtDNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA ...
) tests like those used by published academic studies at the time. FamilyTreeDNA's initial Y-chromosome tests were described as 11 marker tests. They eventually began to call this a 12 STR marker test as one of the STRS (DYS385) almost always had two copies. This they billed as a method to affirm or disprove a genealogical connection on the direct paternal line. FamilyTreeDNA's first mtDNA tests were for
HVR1 A hypervariable region (HVR) is a location within nuclear DNA or the D-loop of mitochondrial DNA in which base pairs of nucleotides repeat (in the case of nuclear DNA) or have substitutions (in the case of mitochondrial DNA). Changes or repeats in ...
(hypervariable region 1) of the mtDNA. Eventually, they added a Plus test that tested for both HVR1 and HVR2. In the early days, they did not confirm haplogroups for either mtDNA or Y-DNA.


Opening of the Genomics Research Center

In 2006, FamilyTreeDNA bought out the assets of DNA-Fingerprint, which was a German paternity testing company that offered à la carte testing to the genetic genealogy testing community. With this buyout, Thomas and Astrid Krahn, who had owned DNA-Fingerprint, moved to Houston, Texas, and helped open the Genomics Research Center. The Genomics Research Center initially did testing for many of the same products that had been sold by DNA-Fingerprint. They began to offer individual and panels of Y-chromosome SNP tests using Sanger testing methods. They also offered the mtDNA full genome test and upgrades to it using the Sanger testing method. Soon came the launch of the ''Walk Through the Y'' (WTY) test. The WTY test offered the most adventurous of citizen scientists the chance to seek the discovery of new Y-chromosome SNPs. Meanwhile, most testing continued to be done at the University of Arizona lab. The demand for additional test types led Greenspan and Blankfeld to move all testing to their own testing lab in Houston, Texas under the Genealogy by Genetics, Ltd. parent company.


Partnerships

Between 2007 and 2010, FamilyTreeDNA forged several new partnerships that allowed them to access additional international markets. iGENEA The first of FamilyTreeDNA's new partnerships was with the Switzerland-based iGENEA company. It was formed alongside the closing of DNA-Fingerprint and Thomas Krahn's helping open the Genomic Research Center in Houston. Their website is available in English, French, German, Italian, and Spanish. African DNA In late 2007,
Henry Louis Gates Henry Louis "Skip" Gates Jr. (born September 16, 1950) is an American literary critic, professor, historian, and filmmaker, who serves as the Alphonse Fletcher University Professor and Director of the Hutchins Center for African and African Ame ...
created African DNA in partnership with FamilyTreeDNA to help promote genetic testing for personal ancestry among African Americans. DNA Ancestry & Family Origin DNA Ancestry & Family Origin DNA Ancestry & Family Origin is a genetic genealogy testing partnership between FamilyTreeDNA and Eastern Biotech & Life Sciences. Their website is available in both English and Arabic. MyHeritage In November 2008, a dynamic partnership with
MyHeritage MyHeritage is an online genealogy platform with web, mobile, and software products and services, introduced by the Israeli company MyHeritage in 2003. Users of the platform can obtain their family trees, upload and browse through photos, and sear ...
was launched, allowing users to incorporate DNA testing and advanced family tree technologies into their family history research. MyHeritage is a website offering online, mobile and software platforms for discovering, preserving and sharing family history worldwide.


Acquisition by MYDNA, Inc. (2021)

In January 2021 it was announced that MYDNA, Inc. a Melbourne, Australia, genomics company, had acquired Family Tree DNA and its parent company Gene by Gene. MYDNA, Inc has historically specialized in
pharmacogenomics Pharmacogenomics is the study of the role of the genome in drug response. Its name ('' pharmaco-'' + ''genomics'') reflects its combining of pharmacology and genomics. Pharmacogenomics analyzes how the genetic makeup of an individual affects the ...
and
nutrigenomics Nutritional genomics, also known as nutrigenomics, is a science studying the relationship between human genome, human nutrition and health. People in the field work toward developing an understanding of how the whole body responds to a food via sy ...
. Dr Lior Rauchberger commenced his role as CEO of MYDNA, Inc immediately. While Gene by Gene co-founders Bennett Greenspan and Max Blankfeld joined the MYDNA, Inc Board of Directors.


DNA testing products


Autosomal DNA testing

In May 2010, FamilyTreeDNA launched an autosomal
microarray A microarray is a multiplex lab-on-a-chip. Its purpose is to simultaneously detect the expression of thousands of genes from a sample (e.g. from a tissue). It is a two-dimensional array on a solid substrate—usually a glass slide or silico ...
chip based DNA test. They called the new product Family Finder. The initial product used an
Affymetrix Affymetrix is now Applied Biosystems, a brand of DNA microarray products sold by Thermo Fisher Scientific that originated with an American biotechnology research and development and manufacturing company of the same name. The Santa Clara, Califor ...
microarray chip, but FamilyTreeDNA changed to the Illumina OmniExpress chip and retested all customers who had results from the Affymetrix chip for forward compatibility. Family Finder allows customers to match relatives as distant as about fifth cousins. Family Finder also includes a component called myOrigins. The results of this test provide percentages of a DNA associated with general regions or specific ethnic groups (e.g. Western Europe, Asia, Jewish, Native American, etc.). Notably, unlike other testing companies, they chose to strip out markers for mendelian medical issues, mtDNA results, and Y-DNA SNP results.


Y-DNA testing

The company markets a range of
Y-DNA The Y chromosome is one of two sex chromosomes (allosomes) in therian mammals, including humans, and many other animals. The other is the X chromosome. Y is normally the sex-determining chromosome in many species, since it is the presence or abs ...
tests. The Y-chromosome is inherited from father to son, so testers can discover relatives with the same patrilineage. In many cultures these relatives will often share the same surname, since surnames are also inherited father to son. These tests cover 37-111 STR markers depending on the test, and vary in price according to the number of markers covered. FTDNA introduced their "Big Y" test in 2013. Big Y tests approximately 15 million locations on the Y chromosome, looking for novel and shared SNPs. By the end of 2021, FTDNA had identified over 50,000 branches in the tree of all Y-DNA results.


mtDNA testing

FamilyTreeDNA also sells
mtDNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA ...
testing, offering the choice of either a limited
hypervariable region A hypervariable region (HVR) is a location within nuclear DNA or the D-loop of mitochondrial DNA in which base pairs of nucleotides repeat (in the case of nuclear DNA) or have substitutions (in the case of mitochondrial DNA). Changes or repeats in ...
test, or a full sequence test of the entire mitochondrial DNA chromosome.


Genographic Project

FamilyTreeDNA staff were instrumental in developing the Geno 2.0 Next Generation product for the second phase of the
Genographic Project The Genographic Project, launched on 13 April 2005 by the National Geographic Society and IBM, was a genetic anthropological study (sales discontinued on 31 May 2019) that aimed to map historical human migrations patterns by collecting and ...
. Geno 2.0 samples for both public and scientific study were run at the Genomics Research Center in Houston, Texas (operated by FamilyTreeDNA's parent company, Gene by Gene, Ltd.) until 2016, when Geno 2.0 began utilizing
Helix A helix () is a shape like a corkscrew or spiral staircase. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is formed as two intertwined helices ...
for DNA sequencing.


Gene by Gene

In September 2012, Greenspan and Blankfeld restructured FamilyTreeDNA's parent company, Genealogy by Genetics, Ltd. This included their renaming Genealogy by Genetics, Ltd. as Gene by Gene, Ltd. After restructuring, the business consisted of four divisions, one of these being FamilyTreeDNA for genealogical DNA tests. It is Gene by Gene, Ltd. that operates the Genomics Research Center (GRC) lab in Houston, Texas. In January 2021, Gene by Gene was acquired by MYDNA Inc. Gene by Gene now works together with MYDNA improving genomics testing for a broad range of clinical and non-clinical services.


Data policy and usage by law enforcement

In December 2018, FamilyTreeDNA changed its terms of service to allow law enforcement to use their service to identify suspects of "a violent crime" (defined as child abduction, sexual assault or homicide) or identify the remains of victims. The company confirmed it was working with the FBI on at least a handful of cases. As of March 2019, the company instituted a policy allowing its customers to opt out of law enforcement access to their genetic data. All customers were automatically opted in to such exposure except those living in the European Union who were opted out by default. Law enforcement officers will be required to go through a more rigorous process in order to access the database, while customers who opt out of allowing the FBI to access their data will still be able to search for possible relatives as before. “Users now have the ability to opt out of matching with DNA relatives whose accounts are flagged as being created to identify the remains of a deceased individual or a perpetrator of homicide or sexual assault, also referred to as Law Enforcement Matching (LEM),” the company wrote in an email to customers. In May 2019 FamilyTreeDNA prevented access to its Y-DNA database ysearch.org and its mtDNA data base mitosearch making it more difficult for law enforcement agencies to identify crime suspects. In August 2019, FamilyTreeDNA reported that about 50 law enforcement agencies had submitted DNA samples for matching and that almost 150 cases had been submitted. By spring 2020, only around 3% of about 2 million users have opted out. By August 2020, the company helped solve at least 27 cases.


List of arrest or identifications made with FamilyTreeDna

*In January 2019, California police arrested Kevin Konther for the brutal rape of a nine-year-old girl in Lake Forest 1995 and a 31-year-old woman at
Mission Viejo, California Mission Viejo ( ; corruption of ''Misión Vieja'', Spanish for "Old Mission") is a commuter city in the Saddleback Valley in Orange County, California, United States. Mission Viejo is considered one of the largest master-planned communities ev ...
in 1998 and said they had used FamilyTreeDNA services and
genetic genealogy Genetic genealogy is the use of genealogical DNA tests, i.e., DNA profiling and DNA testing, in combination with traditional genealogical methods, to infer genetic relationships between individuals. This application of genetics came to be used b ...
techniques to help identify him. Konther has an identical twin brother, and the DNA profile had initially implicated both men, but further detective investigation led authorities to release the brother and focus on Konther as their main suspect. He was also accused of Molesting a 12-year-old girl between January 2002 and December 2003. *In February 2019, FamilyTreeDNA helped police with the arrest of James Neal for the July 6, 1973 abduction and murder by strangulation of 11-year-old schoolgirl Linda O'Keefe in
Newport Beach, California Newport Beach is a coastal city in South Orange County, California. Newport Beach is known for swimming and sandy beaches. Newport Harbor once supported maritime industries however today, it is used mostly for recreation. Balboa Island draws v ...
as well as multiple sexual assaults against other children. He pleaded not guilty and faced a maximum sentence of 82 years to life in state prison if convicted. However Neal died while in custody in July 2020 from an illness before he could be tried. *In February 2019, Jerry Westrom was arrested as the suspect behind the 1993 murder of Jeanne Ann Childs in
Minneapolis, Minnesota Minneapolis () is the largest city in Minnesota, United States, and the county seat of Hennepin County. The city is abundant in water, with thirteen lakes, wetlands, the Mississippi River, creeks and waterfalls. Minneapolis has its origins ...
. In an interview after his arrest, Westrom denied being in the apartment. He said he did not know the victim, and said he did not have sex with any women in Minneapolis in 1993. When confronted with the DNA evidence, he told investigators he had no idea why his DNA would be present at that scene. In August 2022, Westrom was convicted and in September, he was sentenced to life in prison with 30 years before parole. *In April 2019, Law Enforcement working with Family Tree DNA Positively identified the remains of two young women found in oil fields in 1986 and 1991 in an area known as the " Texas Killing Fields" near
League City, Texas League City is a city in the U.S. state of Texas, in Galveston County, within the metropolitan area. As of the 2020 census, the city had a population of 112,129. The city of League City has a small portion north of Clear Creek within Harris ...
. They were 30-year-old Audrey Lee Cook and 34-year-old mother of two Donna Prudhomme. *In May 2019, Christopher VanBuskirk was arrested in Goodyear Arizona for the sexual assaults of six women at knife-point from 1995 to 2004 in
San Diego San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States ...
and Riverside Counties, California. He had been identified with the help of the FBI Forensic Genetic Genealogy Team and Family Tree DNA. VanBuskirk originally pled not guilty to the crimes and faced 190 years to life in prison, however changed his plea to guilty in December 2019, and was sentenced on February 20, 2020, to 50 years to life in prison. Vanbskirk is currently incarcerated in the
California Institution for Men California Institution for Men (CIM) is a male-only state prison located in the city of Chino, San Bernardino County, California. It is often colloquially referenced as "Chino". In turn, locals call the prison "Chino Men's" or just "Men's" to avo ...
and is currently eligible for parole in February 2038. *In August 2019, Ralph Bortree was arrested in Ohio for a July 31, 1993, rape and attempted murder of a 19-year-old woman. the DNA profile was also matched to a May 23, 1992 kidnapping and rape of another 19-year-old woman. Other evidence links him to two similar attacks on women on July 22, 1993 and May 24, 1995. Bortree cannot be charged with rape, kidnapping or attempted kidnapping or rape due to the states 20 year statute of limitations for those crimes so the prosecution only charged him with one count of attempted murder. The defense argued that the statue has expired for that offense as well. However the judge ruled against the motion and Bortree was found guilty of Attempted Aggravated Murder at trial in November 2020 and was sentenced to 11 years in prison on December 18. Bortree is currently imprisoned in the Richland Correctional Institution. *In September 2019, Donald Perea was posthumously identified as the 1981 rapist and murderer of 18-year old Jeannie Moore in Jefferson county Colorado. Perea was previously convicted of a different rape that also took place in 1981. He could not be arrested due to his death in 2012. *In September 2019, Mark Douglas Burns was identified and arrested as a suspect in nine rapes that took place in Wyoming and Utah between 1991 and 2001. According to Barbara Rae-Venter the case took over a year and a half and was one of the most difficult ones to solve as Mark was adopted and the building where his records were located burned to the ground. Burns was also later connected to the 2001 Wyoming murder of 28-year-old Sue Ellen Higgins, Burns initially pled not guilty but later changed his plea to guilty. In April 2020, Burns was sentenced to a total of 242 years in prison for the rapes and in December 2020, Burns was sentenced to life in prison without parole for the murder of Sue Ellen Higgins. Burns is imprisoned in the
Utah State Prison Utah State Prison (USP) was one of two prisons managed by the Utah Department of Corrections' Division of Institutional Operations. It was located in Draper, Utah, United States, about southwest of Salt Lake City.Utah Department of Correc ...
. *In February 2020, Michael Green was arrested for the 1985 murder of 54-year old Jane Hylton in El Dorado Hills, California. Green was initially not named since he was a juvenile at the time of the murder. Ricky Davis was previously convicted of the murder and had been sentenced to 16 years to life of which he had served 14 years when he was exonerated and the new suspect arrested. Davis is the first person in California, and the second in the United States, to be exonerated due to the use of genetic genealogy. Christopher Tapp, a man in Idaho was convicted for the 1996 rape and murder of Angie Dodge but was exonerated with the help of genetic genealogy in 2019 after spending 22 years in jail. *In February 2020, Deborah Riddle O' Conner was arrested for the murder of a "Baby Michael" in
Raleigh, North Carolina Raleigh (; ) is the capital city of the state of North Carolina and the seat of Wake County in the United States. It is the second-most populous city in North Carolina, after Charlotte. Raleigh is the tenth-most populous city in the Southeas ...
in 1999. In August 2021, O’Connor pled guilty to second-degree murder and was sentenced to 12 years in prison. *In April 2020, James Raymond Taylor was identified as the Aug. 18, 1963 rapist and murderer of 16-year old Margaret "Peggy" Beck near Deckers, Colorado. *In May 2020, Angelo Alleano Jr., a firefighter, was arrested for four burglaries and sexual assaults that occurred between 2001 and 2008 in
Manchester Manchester () is a city in Greater Manchester, England. It had a population of 552,000 in 2021. It is bordered by the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The tw ...
and
Vernon, Connecticut Vernon is the most populous town in Tolland County, Connecticut, United States. The population was 30,215 at the 2020 census. Vernon contains the smaller villages of Talcottville and Dobsonville. Vernon contains the former City of Rockville. ...
. In June 2022, Alleano pled guilty to the charges against him. In September, he was sentenced to 25 years in prison. *In May 2020, Christopher Lovrien was charged with the murder of Mark Dribin in
Portland, Oregon Portland (, ) is a port city in the Pacific Northwest and the largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette and Columbia rivers, Portland is the county seat of Multnomah County, the most populous co ...
in 1999. Lovrien is now also being charged with the murder of Kenneth Griffin, who had gone missing on February 1, 2020 by authorities searching a shed at Lovrien’s home several weeks after his arrest found Griffins dismembered remains. *In July 2020, Lesa Lopez was arrested in Salida, California for the murder of her newborn baby boy who was found dead on May 15, 1988 in Castro Valley. *In October 2020, a skull and other remains of a man found in a wooded area in Giddings, Texas were identified as James L. Hamm. The
DNA Doe Project DNA Doe Project (also DNA Doe Project, Inc. or DDP) is an American nonprofit volunteer organization formed to identify unidentified deceased persons (commonly known as John Doe or Jane Doe) using forensic genealogy. Volunteers identify victims ...
had been investigating the case since June 2019, and had uploaded his DNA to both FamilyTreeDNA and
GEDMatch GEDmatch is an online service to compare autosomal DNA data files from different testing companies. The website gained significant media coverage in April 2018 after it was used by law enforcement to identify a suspect in the Golden State Kille ...
. Hamm's matches were notably much poorer on GEDMatch, and Hamm's brother, Eugene, was found on FamilyTreeDNA in June 2020. After DNA comparison, the remains in Texas were conclusively identified as Hamm. *In February 2021, David Dwayne Anderson was arrested for the August 4, 1981 Murder of Sylvia Quayle in
Cherry Hills Village, Colorado The City of Cherry Hills Village is a home rule municipality located in Arapahoe County, Colorado, United States. The city population was 6,442 at the 2020 United States Census. Cherry Hills Village is a part of the Denver–Aurora–Lakewood, ...
. In June 2022, Anderson was found guilty of his offenses and in August, Anderson was sentenced to life in prison with 20 years before parole. *In November 2021, Kenneth Robert Stough, Jr was arrested for the murder of 31-year old Terence Paquette who was found stabbed to death at the Lil' Champ convenience store n
Orlando, Florida Orlando () is a city in the U.S. state of Florida and is the county seat of Orange County. In Central Florida, it is the center of the Orlando metropolitan area, which had a population of 2,509,831, according to U.S. Census Bureau figures rel ...
in 1996. *In May 2022, Jennifer Lynn Matter, of Belvidere Township, Michigan was arrested and charged with second-degree murder with intent, not premeditated, and second-degree murder without intent for the murders of her newborn daughter who was found dead in the Mississippi River in 1999 and her newborn son who was found dead in Lake Pepin in 2003. *In November 2022, Douglas L. Weber was arrested for the January 7, 1996 kidnapping and rape of a teenaged woman in Larkin Township, Michigan.


See also

*Genetic genealogy **
Ancient DNA Ancient DNA (aDNA) is DNA isolated from ancient specimens. Due to degradation processes (including cross-linking, deamination and fragmentation) ancient DNA is more degraded in comparison with contemporary genetic material. Even under the bes ...
**
Genealogical DNA test A genealogical DNA test is a DNA-based test used in genetic genealogy that looks at specific locations of a person's genome in order to find or verify ancestral genealogical relationships, or (with lower reliability) to estimate the ethnic mixt ...
**
Genetic genealogy Genetic genealogy is the use of genealogical DNA tests, i.e., DNA profiling and DNA testing, in combination with traditional genealogical methods, to infer genetic relationships between individuals. This application of genetics came to be used b ...
**
Human mitochondrial genetics Human mitochondrial genetics is the study of the genetics of human mitochondrial DNA (the DNA contained in human mitochondria). The human mitochondrial genome is the entirety of hereditary information contained in human mitochondria. Mitochondri ...
**
Phylogenetic tree A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spec ...
**
Short tandem repeat A microsatellite is a tract of repetitive DNA in which certain DNA motifs (ranging in length from one to six or more base pairs) are repeated, typically 5–50 times. Microsatellites occur at thousands of locations within an organism's genome. ...
**
Single-nucleotide polymorphism In genetics, a single-nucleotide polymorphism (SNP ; plural SNPs ) is a germline substitution of a single nucleotide at a specific position in the genome. Although certain definitions require the substitution to be present in a sufficiently larg ...
*Test types **
DNA microarray A DNA microarray (also commonly known as DNA chip or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes simultaneously or to g ...
**
DNA sequencing DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The ...
**
Polymerase chain reaction The polymerase chain reaction (PCR) is a method widely used to rapidly make millions to billions of copies (complete or partial) of a specific DNA sample, allowing scientists to take a very small sample of DNA and amplify it (or a part of it) ...
**
Sanger sequencing Sanger sequencing is a method of DNA sequencing that involves electrophoresis and is based on the random incorporation of chain-terminating dideoxynucleotides by DNA polymerase during in vitro DNA replication. After first being developed by Freder ...
*Test manufactures **
Affymetrix Affymetrix is now Applied Biosystems, a brand of DNA microarray products sold by Thermo Fisher Scientific that originated with an American biotechnology research and development and manufacturing company of the same name. The Santa Clara, Califor ...
** Applied Biosystems ** Illumina *Genetic genealogy and anthro-genetics companies **
23andMe 23andMe Holding Co. is a publicly held personal genomics and biotechnology company based in South San Francisco, California. It is best known for providing a direct-to-consumer genetic testing service in which customers provide a saliva sample t ...
** deCODEme **
GEDmatch GEDmatch is an online service to compare autosomal DNA data files from different testing companies. The website gained significant media coverage in April 2018 after it was used by law enforcement to identify a suspect in the Golden State Kille ...
** GeneTree **
Genographic Project The Genographic Project, launched on 13 April 2005 by the National Geographic Society and IBM, was a genetic anthropological study (sales discontinued on 31 May 2019) that aimed to map historical human migrations patterns by collecting and ...
**
International Society of Genetic Genealogy The International Society of Genetic Genealogy (ISOGG) is an independent non-commercial nonprofit organization of genetic genealogists run by volunteers. It was founded by a group of surname DNA project administrators in 2005 to promote DNA tes ...
(ISOGG) **
Sorenson Molecular Genealogy Foundation The Sorenson Molecular Genealogy Foundation (SMGF) was an independent DNA and genealogical research institution with the goal of demonstrating how the peoples of the world are related. SMGF collected DNA samples and genealogical information from i ...
(SMGF)


References


External links

*
Famous Haplogroups
ISOGG {{DEFAULTSORT:Familytreedna Genetic genealogy companies Applied genetics Companies based in Houston Commercial laboratories American genealogy websites Genetic genealogy projects Laboratories in the United States Companies established in 2000 2000 establishments in Texas