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Haplogroup Q (mtDNA)
In human mitochondrial genetics, haplogroup Q is a human mitochondrial DNA (mtDNA) haplogroup typical for Oceania. It is a subgroup of haplogroup M29'Q. Origin Haplogroup Q is a descendant of haplogroup M. Distribution Today, mitochondrial DNA Haplogroup Q is found in the southern Pacific region, especially in New Guinea, MelanesiamtDNA Haplogroup Testing and . Haplogroup Q is very diverse and frequently occurring among Papuan and Melanesian populations, with an inferred coalescence time of approximately 50,000 years before present. The frequency of this haplogroup among the populations of the islands of |
Human Mitochondrial DNA Haplogroup
In human genetics, a human mitochondrial DNA haplogroup is a haplogroup defined by differences in human mitochondrial DNA. Haplogroups are used to represent the major branch points on the mitochondrial phylogenetic tree. Understanding the evolutionary path of the female lineage has helped population geneticists trace the matrilineal inheritance of modern humans back to human origins in Africa and the subsequent spread around the globe. The letter names of the haplogroups (not just mitochondrial DNA haplogroups) run from A to Z. As haplogroups were named in the order of their discovery, the alphabetical ordering does not have any meaning in terms of actual genetic relationships. The hypothetical woman at the root of all these groups (meaning just the mitochondrial DNA haplogroups) is the matrilineal most recent common ancestor (MRCA) for all currently living humans. She is commonly called Mitochondrial Eve. The rate at which mitochondrial DNA mutates is known as the mitochon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup M (mtDNA)
Haplogroup M is a human mitochondrial DNA (mtDNA) haplogroup. An enormous haplogroup spanning all the continents, the macro-haplogroup M, like its sibling the macro-haplogroup N, is a descendant of the haplogroup L3. All mtDNA haplogroups considered native outside of Africa are descendants of either haplogroup M or its sibling haplogroup N. Haplogroup M is relatively young, having a younger most recent common ancestor date than some subclades of haplogroup N such as haplogroup R. Origins There is a debate concerning the geographical origins of Haplogroup M and its sibling haplogroup N. Both lineages are thought to have been the main surviving lineages involved in the out of Africa migration (or migrations) because all indigenous lineages found outside Africa belong to haplogroup M or haplogroup N. Scientists are unsure whether the mutations that define haplogroups M and N occurred in Africa before the exit from Africa or in Asia after the exit from Africa. Determining the origi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesians
Indonesians (Indonesian: ''orang Indonesia'') are citizens or people originally from Indonesia, regardless of their ethnic or religious background. There are more than 1,300 ethnicities in Indonesia, making it a multicultural archipelagic country with a diversity of languages, culture and religious beliefs. The population of Indonesia according to the 2020 national census was 270.2 million. 56% live on the island of Java, the world's most populous island. Around 95% of Indonesians are Native Indonesians (formerly grouped as "Pribumi"), with 40% Javanese and 15% Sundanese forming the majority, while the other 5% are Indonesians with ancestry from foreign origin, such as Arab Indonesians, Chinese Indonesians, Indian Indonesians, and Indos. Population As of 2020, Indonesians make up 3.4% of world total population and Indonesia is the fourth most populous country after China, India and the United States. Despite a fairly effective family planning program that has been in p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Genetics
Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure. Population genetics was a vital ingredient in the emergence of the modern evolutionary synthesis. Its primary founders were Sewall Wright, J. B. S. Haldane and Ronald Fisher, who also laid the foundations for the related discipline of quantitative genetics. Traditionally a highly mathematical discipline, modern population genetics encompasses theoretical, laboratory, and field work. Population genetic models are used both for statistical inference from DNA sequence data and for proof/disproof of concept. What sets population genetics apart from newer, more phenotypic approaches to modelling evolution, such as evolutionary game theory and adaptive dynamics, is its emphasis on such genetic phenomena as dominance, epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Mitochondria are small structures in cells that generate energy for the cell to use, and are hence referred to as the "powerhouses" of the cell. Mitochondrial DNA (mtDNA) is not transmitted through nuclear DNA (nDNA). In humans, as in most multicellular organisms, mitochondrial DNA is inherited only from the mother's ovum. There are theories, however, that paternal mtDNA transmission in humans can occur under certain circumstances. Mitochondrial inheritance is therefore non-Mendelian, as Mendelian inheritance presumes that half the genetic material of a fertilized egg (zygote) derives from each parent. Eighty percent of mitochondrial DNA codes for mitochondrial RNA, and therefore most mitochondrial DNA mutations lead to functional problems, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 by family historians in the 21st century, as DNA tests became affordable. The tests have been promoted by amateur groups, such as surname study groups or regional genealogical groups, as well as research projects such as the Genographic Project. As of 2019, about 30 million people had been tested. As the field developed, the aims of practitioners broadened, with many seeking knowledge of their ancestry beyond the recent centuries, for which traditional pedigrees can be constructed. History The investigation of surnames in genetics can be said to go back to George Darwin, a son of Charles Darwin and Charles' first cousin Emma Darwin. In 1875, George Darwin used surnames to estimate the frequency of first-cousin marriages and calculated t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 mixture of an individual. Since different testing companies use different ethnic reference groups and different matching algorithms, ethnicity estimates for an individual vary between tests, sometimes dramatically. Three principal types of genealogical DNA tests are available, with each looking at a different part of the genome and being useful for different types of genealogical research: autosomal (atDNA), mitochondrial (mtDNA), and Y-DNA. Autosomal tests may result in a large number of DNA matches to both males and females who have also tested with the same company. Each match will typically show an estimated degree of relatedness, i.e., a close family match, 1st-2nd cousins, 3rd-4th cousins, etc. The furthest degree of relationship is u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneans
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and east of Sumatra. The island is politically divided among three countries: Malaysia and Brunei in the north, and Indonesia to the south. Approximately 73% of the island is Indonesian territory. In the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. The population in Borneo is 23,053,723 (2020 national censuses). Additionally, the Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo. The sovereign state of Brunei, located on the north coast, comprises about 1% of Borneo's land area. A little more than half of the island is in the Northern Hemisphere, including Brunei and the Malaysian portion, while the Indonesian portion spans the Northern and Southern hemisphe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balinese People
The Balinese people ( id, suku Bali; ban, ᬳᬦᬓ᭄ᬩᬮᬶ, anak Bali) are an Austronesian ethnic group native to the Indonesian island of Bali. The Balinese population of 4.2 million (1.7% of Indonesia's population) live mostly on the island of Bali, making up 89% of the island's population. There are also significant populations on the island of Lombok and in the easternmost regions of Java (e.g. the regency of Banyuwangi). Origins The Balinese originated from three periods of migration. The first waves of immigrants came from Java and Kalimantan in prehistoric times and were of Proto-Malay stock. The second wave of Balinese came slowly over the years from Java during the Hindu period. The third and final wave came from Java, between the 15th and 16th centuries, about the same time as the conversion to Islam in Java, causing aristocrats and peasants to flee to Bali after the collapse of the Javanese Hindu Majapahit Empire in order to escape Mataram's Islamic conv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surigaonon People
The Surigaonon people are an ethnolingustic group who inhabited on the eastern coastal plain of Mindanao, particularly the provinces of Surigao del Norte, Surigao del Sur and Dinagat Islands. They are also present in the provinces of Agusan del Norte, Agusan del Sur, and in Davao Oriental. They are part of the Bisaya people, who constitute the largest Filipino ethnolinguistic group in the country. Demographics Currently, the Surigaonons number about 1,000,000 (estimates) based on the population of Surigao del Norte, Surigao del Sur and some speakers of Agusan del Norte. Surigaonons are Austronesians, like almost all native Filipino ethnic groups. They are part of the wider Visayan ethnic group. Their language closely resembles Cebuano, albeit with some local words and phrases. Hence, it is considered by most linguists to be a separate language, the Surigaonon language. Because of the mass influx of Cebuano settlers to Mindanao, they also speak Cebuano as second language s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filipinos
Filipinos ( tl, Mga Pilipino) are the people who are citizens of or native to the Philippines. The majority of Filipinos today come from various Austronesian ethnolinguistic groups, all typically speaking either Filipino, English and/or other Philippine languages. Currently, there are more than 185 ethnolinguistic groups in the Philippines; each with its own language, identity, culture and history. Names The name ''Filipino'', as a demonym, was derived from the term ''Las Islas Filipinas'' ("the Philippine Islands"), the name given to the archipelago in 1543 by the Spanish explorer and Dominican priest Ruy López de Villalobos, in honor of Philip II of Spain (Spanish: ''Felipe II''). During the Spanish colonial period, natives of the Philippine islands were usually known by the generic terms ''indio'' (" Indian") or ''indigenta'' ("indigents"). However, during the early Spanish colonial period the term ''Filipinos'' or ''Philipinos'' was sometimes used by Spanish writ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polynesia
Polynesia () "many" and νῆσος () "island"), to, Polinisia; mi, Porinihia; haw, Polenekia; fj, Polinisia; sm, Polenisia; rar, Porinetia; ty, Pōrīnetia; tvl, Polenisia; tkl, Polenihia (, ) is a subregion of Oceania, made up of more than 1,000 islands scattered over the central and southern Pacific Ocean. The indigenous people who inhabit the islands of Polynesia are called Polynesians. They have many things in common, including language relatedness, cultural practices, and traditional beliefs. In centuries past, they had a strong shared tradition of sailing and using stars to navigate at night. The largest country in Polynesia is New Zealand. The term was first used in 1756 by the French writer Charles de Brosses, who originally applied it to all the islands of the Pacific. In 1831, Jules Dumont d'Urville proposed a narrower definition during a lecture at the Geographical Society of Paris. By tradition, the islands located in the southern Pacific have also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
