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EXCEPTIONAL GENETIC DIVERGENCE OF NORTHERN FLINT CORN
Author(s) -
Doebley John F.,
Goodman or M.,
Stuber Charles W.
Publication year - 1986
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1986.tb09681.x
Subject(s) - biology , genetic divergence , genetic drift , divergence (linguistics) , selection (genetic algorithm) , isozyme , genetic variation , evolutionary biology , ecology , genetic diversity , genetics , gene , demography , population , linguistics , philosophy , biochemistry , artificial intelligence , sociology , computer science , enzyme
Isozyme analysis of 18 Northern Flint populations supports the previously published hypothesis that Northern Flint was derived from maize races of the southwestern U.S. and northwestern Mexico. Isozyme data also show that during its short evolutionary history (approx. 1,000 yr) Northern Flint obtained a degree of genetic differentiation from other North American maize landraces more typical of a separate species than of landraces of the same cultigen. Genetic drift, changes in selection pressure associated with movement into a new environment, and reproductive isolation from other maize races may have contributed to the genetic dissimilarity of Northern Flint.