title: Evolution in ground squirrels--I. Transferrins in holarctic populations of Spermophilus.
mesh_terms: D000483:Alleles; D000818:Animals; D001110:Arctic Regions; D005075:Biological Evolution; D004592:Electrophoresis, Starch Gel; D005799:Genes, Dominant; D011110:Polymorphism, Genetic; D012589:Sciuridae / Q000097:blood*; D013045:Species Specificity; D014168:Transferrin / Q000032:analysis*
chemical_list: D014168:Transferrin