Filters: Tags: genecology (X)4 results (78ms)
Evolution of the Cyprinella lutrensis species group. 3. Geographic variation in the mitochondrial DNA of Cyprinella lutrensis -- the influence of Pleistocene glaciation on population dispersal and divergence
Dynamics of Mhc evolution in birds and crocodilians: Amplification of class II genes with degenerate primers
Phylogeographic survey of brook charr (Salvelinus fontinalis) in Algonquin Park, Ontario based upon mitochondrial DNA variation
Ecological significance of microsatellite variation in western North American populations of Bromus tectorum
Bromus tectorum (cheatgrass or downy brome) is an exotic annual weed that is abundant in western USA. We examined variation in six microsatellite loci for 17 populations representing a range of habitats in Utah, Idaho, Nevada and Colorado (USA) and then intensively sampled four representative populations, for a total sample size of approximately 1000 individuals. All loci were homozygous, indicating that the species is strongly selfing. Populations consisted of a few common genotypes and variable numbers of rare genotypes. Small sample sizes (n = 10 individuals) were adequate for distinguishing among populations, but larger sample sizes were needed to characterize more diverse populations, particularly in terms...