Mitochondrial Variation and Biogeographic History of Chinook Salmon

摘要: Abstract The genetic variation of many species in the Northern Hemisphere has been influenced by climatic changes during Pleistocene Epoch. Phylogeographic studies can help determine intraspecific relationships and postglacial recolonization routes for these species, potentially leading to a more complete understanding how flora fauna respond dramatic climate change. We analyzed mitochondrial DNA sequences Chinook salmon Oncorhynchus tshawytscha from California Kamchatka Peninsula, Russia, gain insight into role glaciation structuring this species. geographic distribution haplotypes revealed high levels diversity Columbia River drainage. Nested clade analysis suggests northward expansion area late Pleistocene, hypothesis that is further supported evidence demographic growth population northern portion species' range. Estimates the...