| genetic distinctiveness of endangered dwarf blue sheep (pseudois nayaur schaeferi): evidence from mitochondrial control region and y-linked zfy intron sequences. | to elucidate the controversial systematic relationship of blue sheep (pseudois nayaur) and endangered dwarf blue sheep, we sequenced part of the mtdna control region and y-linked zfy intron, and carried out phylogenetic analyses. mitochondrial results revealed that the dwarf blue sheep is a strongly supported monophyletic group, with an average of 12.21% sequence divergence from the blue sheep. this is the first genetic evidence for the distinctness of the dwarf blue sheep. zfy intron results sh ... | 2001 | 11336239 |
| molecular phylogeography and genetic differentiation of blue sheep pseudois nayaurszechuanensis and pseudois schaeferi in china. | within the genus pseudois (bovidae, artiodactyla), two challenges are faced by taxonomists. first, the designation of the two subspecies of blue sheep, pseudois nayaur nayaur and pseudois nayaurszechuanensis, tends to be questionable with the accumulation of morphological and molecular data. second, the taxonomic status of the dwarf blue sheep (pseudois schaeferi) has been controversial since its discovery, and molecular analyses with relatively small sample sizes have not painted a clear pictur ... | 2008 | 18565767 |
| molecular phylogeny and phylogeography of genus pseudois (bovidae, cetartiodactyla): new insights into the contrasting phylogeographic structure. | blue sheep, pseudois nayaur, is endemic to the tibetan plateau and the surrounding mountains, which are the highest-elevation areas in the world. classical morphological taxonomy suggests that there are two subspecies in genus pseudois (bovidae, artiodactyla), namely pseudois nayaur nayaur and pseudois nayaur szechuanensis. however, the validity and geographic characteristics of these subspecies have never been carefully discussed and analyzed. this may be partially because previous studies have ... | 2017 | 28904782 |
| molecular evidence for the subspecific differentiation of blue sheep (pseudois nayaur) and polyphyletic origin of dwarf blue sheep (pseudois schaeferi). | blue sheep (pseudois nayaur), a central asian ungulate with restricted geographic distribution, exhibits unclear variation in morphology and phylogeographic structure. the composition of species and subspecies in the genus pseudois is controversial, particularly with respect to the taxonomic designation of geographically restricted populations. here, 26 specimens including 5 dwarf blue sheep (pseudois schaeferi), which were collected from a broad geographic region in china, were analyzed for 2 m ... | 2012 | 22821360 |
| mitogenomic analysis of the genus pseudois: evidence of adaptive evolution of morphological variation in the atp synthase genes. | the genus pseudois includes two variable taxa, blue sheep (pseudois nayaur) and dwarf blue sheep (pseudois schaeferi), that exhibit notable geographic variation in morphology and ecological niche, suggesting the potential for significant adaptive differentiation between these two goats. blue sheep are broadly distributed in the tibetan plateau and peripheral mountains through central asia, while dwarf blue sheep are only found in the gorges of the upper yangtze river (jinsha river) near batang c ... | 2012 | 22820118 |
| the complete mitochondrial genome sequence of the dwarf blue sheep, pseudois schaeferi haltenorth in china. | the dwarf blue sheep (pseudois schaeferi haltenorth) belongs the subfamily caprinae, which is distributed in sichuan, tibet, yunnan, and qinghai in china. in this study, the complete mitochondrial genome of pseudois schaeferi haltenorth was sequenced. the mitogenome was 16 741 bp in length, consisting of 13 protein-coding genes, 22 transfer rna (trna) genes, 2 ribosomal rna (rrna) genes, and a non-coding control region (d-loop region). as in other mammals, most mitochondrial genes are encoded on ... | 2016 | 26488305 |