Center of diversity

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A center of diversity is an area that has a high degree of genetic variation for a particular plant taxon (e.g. family, genus or species) that can also be the center of origin for that group. The two areas often, but not always, coincide; the degree of coincidence remains the subject of debate.[1][2] In both areas, organisms have had the opportunity over many generations to evolve resistance, via mutation, to their pathogens.[1]

The term was created by the Russian scientist Nikolai Vavilov and the U.S. scientist Jack Harlan.[3] Vavilov published a study in 1926 (Studies on the Origin of Cultivated Plants) describing ten such centers:

Vavilov later modified the concept to include secondary centers of diversity.[2]

See also[edit]


  1. ^ a b "Knowledge Test Questions and Answers for Discussion". The American Phytopathological Society. Retrieved 2008-12-18. [dead link]
  2. ^ a b "Centers of Diversity, Crop Adaptation". Oregon State University. Retrieved 2008-12-18. 
  3. ^ a b George Acquaah (2006). Principles of plant genetics and breeding. Blackwell Publishing. ISBN 978-1-4051-3646-4.