GENETIC RELATIONSHIPS DEDUCED FROM CYTOCHROME-b SEQUENCES AMONG MOOSE

Alces

Gerald F. Shields¹  Charles C. Schwartz²  Kris J. Hundertmark³  R. Terry Bowyer⁴ 

[1] Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA;Present address: Department of Natural Sciences, Carroll College, Helena, MT 59601, USA;Alaska Department of Fish and Game, Kenai Moose Research Center, 43961 Kalifornsky Beach Road, Suite B, Soldotna, AK 99669, USA;Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA;

关键词: alces alces;    cytochrome-b;    genetic diversity;    mitochondrial dna;    moose;    phylogeography;   

DOI  :  

来源: DOAJ

【 摘 要 】

We studied variation in nucleotide sequences of the mitochondrial cytochrome-b gene to assess the phylogeny of moose (Alces alces) in general, and the position of North American moose within that phylogeny in particular. We combined North American, Asian, and European haplotypes generated for this study with 3 Eurasian haplotypes obtained from GenBank. No nucleotide variation occurred within moose from North America, whereas 3 haplotypes were present in European moose and 4 haplotypes in Asian moose. Clade structure was consistent over 6 most-parsimonious trees, with Asian haplotypes composing 1 clade, and North American and European haplotypes composing a second, albeit poorly supported clade. Low diversity of nucleotides in cytochrome-b indicated a recent ancestry among moose worldwide. Existence of 1 North American haplotype is strong evidence of a single, recent entry into the New World via the Bering land bridge, rather than multiple entries through >1 corridors. Furthermore, no phylogenetic support existed for the theory of distinct lineages of European versus Asian-North American moose.

【 授权许可】

Unknown