Spatial genetic variability in the coyote (Canis latrans)

Abstract

Spatial genetic variability was assessed, using starch-gel electrophoresis of proteins, for coyotes, Canis latrans, from Arkansas, Kansas, Oklahoma, Tennessee, and Texas (n = 235). Of 31 con sistently scorable loci (from a total of 34 examined), 24 were monomorphic and seven were polymorphic. Heterozygosity ranged from 0.7% for Oklahoma to 4.6% for middle Tennessee (X̄ = 3.3%) but was not significantly different among localities. With the exception of Oklahoma, significant deviations from Hardy-Weinberg equilibrium occurred at all localities. Wright's F-statistics indicated an overall significant degree of differentiation among populations. Rogers' genetic similarity values, ranging from 0.724 to 0.932, exhibited a pattern of relationships that may reflect an eastward expansion of the coyote's range. Results support the contention that coyotes gradually extended their distribution eastward over a period of 25 to 30 years.

Publication Title

Southwestern Naturalist

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