Behavior and Genetic Variation in Natural Populations

摘要: An analysis of allelic variation at genetic loci controlling several esterases and hemoglobin, as demonstrated by electrophoresis, indicates that wild populations the house mouse ( Mus musculus ) are characterized fine-scale subdivision, which, through territorial behavior family groups (tribes), is achieved even in absence physical or ecological barriers to migration. Heterogeneity allele frequencies among samples from farms same region barns on farm was demonstrated. Spatial within single barns, involving a clustering like genotypes, shown grid-trapping, thus providing direct evidence tribal subdivision continuously distributed populations. For two loci, Es-3 Hbb , an excess heterozygotes appeared small populations, while deficit large populations. The evolutionary significance consequent drift cannot properly be evaluated this time. Although stochastic processes may play dominant role determining, given locus, genotypes individuals alleles geographic patterns variation, studied Texas, uniformity frequency major physiographic climatic regions, would expected if selection determining frequencies.