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Updated: Feb 6, 2026

Using Flight Mills to Measure Flight Propensity and Performance of Western Corn Rootworm, Diabrotica virgifera virgifera LeConte
Published on: October 29, 2019
EXCEPTIONAL GENETIC DIVERGENCE OF NORTHERN FLINT CORN
John F Doebley1, Or M Goodman1,2, Charles W Stuber1,3
1Department of Biology, Texas A&M University, College Station, Texas, 77843.
Abstract:
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.
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