Nuclear Genetic Analysis of the Red Fox Across its Trans-Pacific Range.
作者： Benjamin N Sacks , Zachary T Lounsberry , Mark J Statham
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摘要: The red fox (Vulpes vulpes) occurs on multiple continents in diverse habitats, making it an informative system for evolutionary genomic research. However, its phylogeography remains unclear. Previously, mitochondrial DNA and small numbers of nuclear loci provided discordant views. Both markers indicated deep divergence (~ 0.5 million years [MY]) between Eurasian southern North American populations but differed the apparent continental affinity Alaskan foxes, implying some degree gene exchange during secondary contact (~0.1 MY). We assayed >173000 sites 52 along with 2 Rueppell's foxes rueppellii) a gray wolf (Canis lupus) using Illumina CanineHD BeadChip. obtained 5107 single nucleotide polymorphisms (SNPs) foxes. Consistent Afro-Eurasian origins genetic diversity was higher than samples. Phylogenetic trees that formed monophyletic group nested within clade. admixture models suggested contained up to 40% ancestry. hypothesize either hybridized Beringia at start last glaciation or merged Beringian population after glaciation. Future work is needed test these scenarios assess speciation.
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