Mitochondrial DNA Reveal that Domestic Goat (Capra hircus) are Genetically Affected by Two Subspecies of Bezoar (Capra aegagurus)

  title={Mitochondrial DNA Reveal that Domestic Goat (Capra hircus) are Genetically Affected by Two Subspecies of Bezoar (Capra aegagurus)},
  author={Hideyuki Mannen and Yoshihiko Nagata and Soichi Tsuji},
  journal={Biochemical Genetics},
This article describes the complete sequences of the mitochondrial DNA displacement loop (D-loop) region and cytochrome b gene from domestic goats in Laos (Laos native) and wild goat “markhor” (C. falconeri). The wild goat “bezoar” (Capra aegagrus) has been considered to be the strongest candidate for the ancestor of the domestic goats (C. hircus); however, there is not sufficient molecular data to verify the hypothesis at present. In phylogenetic analyses, two wild goats, the markhor and the… 
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The phylogenetic analyses and sequence divergence established four distinct mt-lineages termed as A, B and C (previously reported) and a new lineage D, which suggested that at least four different strains of wild Capra might have been the source of the modern domestic goats.
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Levels of differentiation between some Capra falconeri lineages and modern domestic goats were similar to levels between other wild goat species and domestic goats, suggesting occurrence of shared ancestral polymorphism among markhor subspecies and/or ancient or recent gene exchange between subspecies.
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Phylogenetic reconstructions in the genus Capra (Bovidae, Artiodactyla) based on the mitochondrial DNA analysis
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Bezoar (Capra aegagrus) Is a Matriarchal Candidate for Ancestor of Domestic Goat (Capra hircus): Evidence from the Mitochondrial DNA Diversity
A neighbor-joining and parsimony phylogenetic tree constructed using the sequences showed that the domestic goats and the bezoar belong to the same cluster, while the markhor showed a distinct cluster separate from that of the domestic/bezoar cluster.
Mitochondrial DNA variation and evolution of Japanese black cattle (Bos taurus).
Complete mitochondrial DNA displacement loop sequences from 32 Japanese Black cattle are described and the analysis of these data in conjunction with previously published sequences from African, European, and Indian subjects suggest an interchange of variants that may be ancient, perhaps a legacy of the first introduction of domesticates to East Asia.
Evidence for two independent domestications of cattle.
Application of a molecular clock suggests that the two major mtDNA clades diverged at least 200,000, and possibly as much as 1 million, years ago, as evidence for two separate domestication events of different subspecies of the aurochs, Bos primigenius and Bos taurus.
Evolution of the cytochrome b gene of mammals.
Comparisons of these cytochrome b sequences support current structure-function models for this membrane-spanning protein, which suggests that the outer surface which includes the Qo redox center is more constrained than the remainder of the molecule, namely, the transmembrane segments and the surface that protrudes into the mitochondrial matrix.
Phylogenetic affiliation of ancient and contemporary humans inferred from mitochondrial DNA.
Phylogenetic analysis indicated that part of the Asians, including the Japanese, subsequently diverged from the majority of Africans, and that Asians can therefore be separated into two distinct groups.
Effect of mitochondrial DNA variation on carcass traits of Japanese Black cattle.
It is suggested that cytoplasmic genetic effects are important sources of variation for carcass traits in Japanese Black cattle.
The 'evolutionary signal' of homoplasy in protein-coding gene sequences and its consequences for a priori weighting in phylogeny.
Estimation of the number of nucleotide substitutions in the control region of mitochondrial DNA in humans and chimpanzees.
A new mathematical method for estimating the number of transitional and transversional substitutions per site, as well as the total number of nucleotide substitutions, suggested that the transition/transversion ratio for the entire control region was approximately 15 and nearly the same for the two species.
Evolution of cytochrome P-450 proteins.
Thirty-four cytochrome P-450 sequences from one bacterial and six vertebrate species have been aligned with the aid of a computer alignment algorithm and it is noted that an apparent increase in the rate of cyto Chrome P- 450 evolution is noted between the bird-mammal divergence and the mammalian radiation.
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  • Economics
    Evolution; international journal of organic evolution
  • 1985
The recently‐developed statistical method known as the “bootstrap” can be used to place confidence intervals on phylogenies and shows significant evidence for a group if it is defined by three or more characters.