George H. Shull
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George Harrison Shull (April 15, 1874 – September 28, 1954) was an eminent American plant
geneticist A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms. A geneticist can be employed as a scientist or a lecturer. Geneticists may perform general research on genetic processe ...
and the younger brother of botanical illustrator and plant breeder
J. Marion Shull James Marion Shull (1872–1948) was an American botanist known for his iris and daylily cultivars and botanical illustrations. Career J. Marion Shull began his career with the government as a dendrological illustrator for the U.S. Forest Servi ...
. He was born on a farm in Clark County,
Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...
, graduated from
Antioch College Antioch College is a private liberal arts college in Yellow Springs, Ohio. Founded in 1850 by the Christian Connection, the college began operating in 1852 as a non-sectarian institution; politician and education reformer Horace Mann was its f ...
in 1901 and from the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...
(
Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is a ...
) in 1904, served as botanical expert to the Bureau of Plant Industry in 1903-04, and thenceforth was a botanical investigator of the
Carnegie Institution The Carnegie Institution of Washington (the organization's legal name), known also for public purposes as the Carnegie Institution for Science (CIS), is an organization in the United States established to fund and perform scientific research. Th ...
at the Station for Experimental Evolution,
Cold Spring Harbor Cold Spring Harbor is a hamlet and census-designated place (CDP) in the Town of Huntington, in Suffolk County, on the North Shore of Long Island in New York. As of the 2010 United States census, the CDP population was 5,070. History Cold Spri ...
, N. Y., giving special attention to the results of
Luther Burbank Luther Burbank (March 7, 1849 – April 11, 1926) was an American botanist, horticulturist and pioneer in agricultural science. He developed more than 800 strains and varieties of plants over his 55-year career. Burbank's varied creations incl ...
's work. Shull played an important role in the development of
hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...
maize Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. Th ...
(in the USA, popularly 'corn') which had great impact upon global
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
. As a geneticist, Shull worked with maize plants. He was interested in pure
breed A breed is a specific group of domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. In literature, there exist several slig ...
s not for their economic value but for his experiments in genetics. He produced maize breeds that bred true and then crossed these strains. The hybrid
offspring In biology, offspring are the young creation of living organisms, produced either by a single organism or, in the case of sexual reproduction, two organisms. Collective offspring may be known as a brood or progeny in a more general way. This ca ...
of the sickly pure breeds were vigorous and predictable. In short, an ideal economic maize resulted from a project motivated purely to advance science. For his work on maize, Shull was awarded the
Public Welfare Medal The Public Welfare Medal is awarded by the U.S. National Academy of Sciences "in recognition of distinguished contributions in the application of science to the public welfare." It is the most prestigious honor conferred by the academy. First awar ...
from the
National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
in 1948. He also described
heterosis Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of ...
in
maize Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. Th ...
in 1908 (the term heterosis was coined by Shull in 1914) and made a number of other key discoveries in the emerging field of genetics. Shull was the founder of the scientific journal ''
Genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar wor ...
''. He was called George in distinction from his son
Harrison Shull Harrison may refer to: People * Harrison (name) * Harrison family of Virginia, United States Places In Australia: * Harrison, Australian Capital Territory, suburb in the Canberra district of Gungahlin In Canada: * Inukjuak, Quebec, or "Po ...
(1923–2003), also a distinguished scientist, specializing in the quantum mechanics of small-molecule electronic spectra.


Work with Luther Burbank

Shull worked with
Luther Burbank Luther Burbank (March 7, 1849 – April 11, 1926) was an American botanist, horticulturist and pioneer in agricultural science. He developed more than 800 strains and varieties of plants over his 55-year career. Burbank's varied creations incl ...
from 1906 to 1914 in an attempt to publish Burbank's plant work on the behalf of the Carnegie Institution. Ultimately unable to get Burbank's full cooperation, and finding that in the Luther Burbank Press's 1914 publication ''Luther Burbank: His Methods and Discoveries, Their Practical Application'' "considerable sections are almost word for word the same as my ... manuscript," Shull never published his work.


Personal life

Shull married Ella Amanda Hollar in July 1906. A daughter, Elizabeth Ellen, born May 8, 1907, did not survive her birth. Ella died two weeks later. All are buried in Santa Rosa, California, in the Odd Fellows Lawn Cemetery. Shull married Mary Julia Nicholl on August 26, 1909. He and his second wife had six children (John Shull, Georgia Shull Vandersloot, Frederick Shull, David Shull, Barbara Shull Miller, and Harrison Shull.)


Death

Shull died in
Princeton Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the nine ...
on September 28, 1954. His cremains were buried in
Santa Rosa, California Santa Rosa (Spanish language, Spanish for "Rose of Lima, Saint Rose") is a city and the county seat of Sonoma County, California, Sonoma County, in the North Bay (San Francisco Bay Area), North Bay region of the San Francisco Bay Area, Bay Area ...
br>
where his first wife was buried. His second wife's remains were also buried there twelve years later.Santa Rosa Memorial Park map Lot #52


References

* * * *Smocovitis, V.B. Shull, George Harrison. ''American National Biography Online''. 2000 *
Nina Fedoroff Nina Vsevolod Fedoroff (born April 9, 1942) is an American molecular biologist known for her research in life sciences and biotechnology, especially transposable elements or jumping genes. and plant stress response.Elder, Andy (Fall 2002Faces of ...
and Nancy Marie Brown. ''Mendel in the Kitchen''. Joseph Henry Press, Washington, D.C. 2004, pages 57–62. A reference to George H. Shull's discovery of the process of heterosis is in the movie "High Time" starring Bing Crosby about a wealthy man going back to college to get his bachelor's degree. When quizzing with a younger fraternity brother, Crosby's character asks "Who discovered the process of heterosis?" to which the young student answers "George W. (pause), NO, George H. Shull"


External links


Biographical Memoir
of Harrison Shull, George's son * {{DEFAULTSORT:Shull, George Harrison 1874 births 1954 deaths American geneticists American botanists University of Chicago alumni People from Clark County, Ohio Genetics (journal) editors