George Harrison Shull (April 15, 1874 – September 28, 1954) was an 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 process ...
and the younger brother of botanical illustrator and plant breeder
J. Marion Shull. He was born on a farm in
Clark County,
Ohio
Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...
, graduated from
Antioch College
Antioch College is a Private college, private Liberal arts colleges in the United States, liberal arts college in Yellow Springs, Ohio, United States. It was founded in 1850 by the Christian Connection and began operating in 1852 as a non-secta ...
in 1901 and from the
University of Chicago
The University of Chicago (UChicago, Chicago, or UChi) is a Private university, private research university in Chicago, Illinois, United States. Its main campus is in the Hyde Park, Chicago, Hyde Park neighborhood on Chicago's South Side, Chic ...
(
Ph.D.) 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 at the Station for Experimental Evolution,
Cold Spring Harbor,
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 who developed more than 800 strains and varieties of plants over his 55-year career. Burbank primarily worked with ...
's work.
Shull played an important role in the development of
hybrid maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native American ...
(in the USA, popularly 'corn') which had great impact upon global
agriculture
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created ...
. As a geneticist, Shull worked with maize plants. He was interested in pure
breed
A breed is a specific group of breedable 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 seve ...
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 sexual reproduction, sexual or asexual reproduction. Collective offspring may be known as a brood or progeny. This can refer to a set of simultaneous offspring ...
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, NGO, 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 ...
in 1948.
He was also elected a member of the
American Philosophical Society
The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publicat ...
.
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 o ...
in
maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native American ...
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 Augustinians, Augustinian ...
''.
He was called George in distinction from his son
Harrison Shull (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 who developed more than 800 strains and varieties of plants over his 55-year career. Burbank primarily worked with ...
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 Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the Unit ...
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 in 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 A ...
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 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 Memoirof 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
Members of the American Philosophical Society
Presidents of the American Society of Naturalists