title: Karyotypic variation following an elevational gradient in the pocket gopher, Thomomys bottae grahamensis Goldman.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D002875:Chromosomes; D004463:Ecology; D005260:Female; D007621:Karyotyping; D008297:Male; D011110:Polymorphism, Genetic; D012377:Rodentia