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Enrico Sandro Coen (born 29 September 1957) is a British biologist who studies the mechanisms used by plants to create complex and varied flower structures. Coen's research has aimed to define the developmental rules that govern flower and leaf growth at both the cellular level and throughout the whole plant to better understand evolution. He has combined molecular, genetic and imaging studies with population and ecological models and computational analysis to understand flower development.


Early life and education

Enrico Coen's father was a physicist and his mother was a chemist. Coen developed an interest in biology at age 15 after reading a biochemistry book entitled ''The Chemistry of Life''. Drawn to abstract analysis, he was undecided whether to pursue chemistry or genetics, and ultimately decided for genetics because lectures began later and there was "coffee for exams". After graduation from
King's College, Cambridge King's College, formally The King's College of Our Lady and Saint Nicholas in Cambridge, is a List of colleges of the University of Cambridge, constituent college of the University of Cambridge. The college lies beside the River Cam and faces ...
in 1979 Coen stayed at Cambridge to pursue his doctoral degree. In 1982, he earned a PhD for research on ''
Drosophila ''Drosophila'' (), from Ancient Greek δρόσος (''drósos''), meaning "dew", and φίλος (''phílos''), meaning "loving", is a genus of fly, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or p ...
'' supervised by geneticist Gabriel Dover on the evolution and function of genes needed to make ribosomal RNA in fruit fly lines, which were selected for the number of bristles on their abdomen.


Career

In 1982, Coen became a research fellow at
St John's College, Cambridge St John's College, formally the College of St John the Evangelist in the University of Cambridge, is a Colleges of the University of Cambridge, constituent college of the University of Cambridge, founded by the House of Tudor, Tudor matriarch L ...
. He decided to study the mechanism of supergenes, gene clusters acting together to affect both evolution and development. As one of the best-defined supergenes was in primroses, he wrote a proposal, and was accepted as a research fellow in the lab of plant biologist Dick Flavell at the
Plant Breeding Institute The Plant Breeding Institute was an agricultural research organisation in Cambridge in the United Kingdom between 1912 and 1987. Founding The institute was established in 1912 as part of the School of Agriculture at the University of Cambridge. ...
in Cambridge. After a year (1983/4) he sought a different plant system to continue his research at John Innes Centre in
Norwich Norwich () is a cathedral city and district of the county of Norfolk, England, of which it is the county town. It lies by the River Wensum, about north-east of London, north of Ipswich and east of Peterborough. The population of the Norwich ...
which studied ''
Antirrhinum ''Antirrhinum'' is a genus of plants in the Plantaginaceae family, commonly known as dragon flowers or snapdragons because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They ...
'', commonly known as snapdragon, and was hired together with colleague Cathie Martin to join the lab of Brian Harrison and Rosemary Carpenter. Coen screened snapdragons for developmental mutants with
sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...
s instead of
petal Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corol ...
s and
carpel Gynoecium (; ; : gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more ...
s instead of
stamen The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...
s, caused by transposon insertions. He eventually discovered that three classes of genes controlled whorl development in wild-type snapdragons: class A controlled sepal identity, class A and B petal identity, B and C stamen identity, and C alone carpel identity. In collaboration with Elliot Meyerowitz of the California Institute of Technology he created computer simulations of how plant cells and their genes interact to direct flower formation and control colour. In 1994 he published evidence of unity and logic of floral development across species on the molecular level as did the labs of Meyerowitz, of Zsuzsanna Schwarz-Sommer and Hans Sommer at Max Planck Institute in Cologne. In the 1990s he collaborated with Przemysław Prusinkiewicz, a computer scientist knowledgeable in biological development at the University of Calgary and others computer modeling techniques to relate gene activity to patterns of growth and geometry.


Work

Coen has written several books, including ''Cells to Civilizations: The Principles of Change That Shape Life'', in which he postulates the seven ingredients which shape life: population variation, persistence, reinforcement, competition, co-operation, combinatorial richness and recurrence.


Awards and honours

*
EMBO Gold Medal The EMBO Gold Medal is an annual award of the European Molecular Biology Organization (EMBO) given to young scientists for outstanding contributions to the life sciences in Europe. Laureates receive a medal and €10,000 and are invited to rece ...
(1996) *
Linnean Medal The Linnean Medal of the Linnean Society of London was established in 1888, and is awarded annually to alternately a botanist or a zoologist or (as has been common since 1958) to one of each in the same year. The medal was of gold until 1976, and ...
(1997) *In 1998 Coen was elected a Fellow of the Royal Society (FRS). biographical text reproduced here was originally published by the Royal Society a creative commons licence * Foreign Associate of
NAS Nas (born 1973) is the stage name of American rapper Nasir Jones. Nas, NaS, or NAS may also refer to: Aviation * Nasair, a low-cost airline carrier and subsidiary based in Eritrea * National Air Services, an airline in Saudi Arabia ** Nas Air (S ...
(2001) *In 2003 he was appointed a CBE for services to plant genetics. *In 2004 Coen won the
Darwin Medal The Darwin Medal is one of the medals awarded by the Royal Society for "distinction in evolution, biological diversity and developmental, population and organismal biology". In 1885, International Darwin Memorial Fund was transferred to the ...
, with Rosemary Carpenter. *In 2012 he became President of the Genetics Society, finishing his 3-year term in 2015. * In 2016 he received the Croonian Medal & Lecture and Waddington Medal *Coen is a member of
Faculty of 1000 F1000 (formerly "Faculty of 1000") is an open research publisher for scientists, scholars, and clinical researchers. F1000 offers a different research evaluation service from standard academic journals by offering peer-review after, rather than ...
.


References


External links


Coen Lab
The John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK * {{DEFAULTSORT:Coen, Enrico 1957 births Living people Alumni of King's College, Cambridge Academics of the University of East Anglia Fellows of the Royal Society Foreign associates of the National Academy of Sciences Members of the European Molecular Biology Organization Commanders of the Order of the British Empire British biologists Fellows of St John's College, Cambridge