title: Complete mitochondrial DNA sequence analysis of Bison bison and bison-cattle hybrids: function and phylogeny.
abstract: Complete mitochondrial DNA (mtDNA) genomes from 43 bison and bison-cattle hybrids were sequenced and compared with other bovids. Selected animals reflect the historical range and current taxonomic structure of bison. This study identified regions of potential nuclear-mitochondrial incompatibilities in hybrids, provided a complete mtDNA phylogenetic tree for this species, and uncovered evidence of bison population substructure. Seventeen bison haplotypes defined by 66 polymorphic sites were discovered, whereas 728 fixed differences and 86 non-synonymous mutations were identified between bison and bison-cattle hybrid sequences. The potential roles of the mtDNA genome in the function of hybrid animals and bison taxonomy are discussed.
authors.affiliation: Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX 77843-4458, USA. kdouglas@cvm.tamu.edu
authors.forename: Kory C
authors.initials: KC
authors.lastname: Douglas
authors.forename: Natalie D
authors.initials: ND
authors.lastname: Halbert
authors.forename: Claire
authors.initials: C
authors.lastname: Kolenda
authors.forename: Christopher
authors.initials: C
authors.lastname: Childers
authors.forename: David L
authors.initials: DL
authors.lastname: Hunter
authors.forename: James N
authors.initials: JN
authors.lastname: Derr
mesh_terms: D000818:Animals; D001483:Base Sequence; D016164:Bison / Q000145:classification / Q000235:genetics*; D002417:Cattle / Q000145:classification / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D005828:Genetics, Population; D054629:Genome, Mitochondrial; D006239:Haplotypes; D006824:Hybridization, Genetic; D008928:Mitochondria / Q000235:genetics; D008969:Molecular Sequence Data; D010802:Phylogeny; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial