Abstract
The Sichuan snub-nosed monkey (Rhinopithecus roxellanae) is a species endemic to China, and its distribution is the widest among all snub-nosed monkeys in China. To clarify whether there is subspecific differentiation within this species, we determined partial sequences of the cytochrome-b gene from four populations ofR. roxellanae. First, 402bps of the partial sequences fromR. roxellanae were compared with those fromR. bieti andR. avunculus, and the phylogenetic tree was constructed by the neighbor-joining method. The genetic distance was only 0–0.002 among the four populations, and their sequences constituted a monophyletic group. Further, comparison of longer sequences (735bp) among the four populations revealed that there were only four substitutions and the genetic distance was only 0.001–0.005 among them. Thus, we suggest that, at least on mtDNA phylogeny, the difference among the four populations does not reach the subspecies level, and that this species should be recognized as a monotypic species.
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Li, M., Liang, B., Feng, Z. et al. Molecular phylogenetic relationships among Sichuan snub-nosed monkeys (Rhinopithecus roxellanae) inferred from mitochondrial cytochrome-b gene sequences. Primates 42, 153–160 (2001). https://doi.org/10.1007/BF02558142
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DOI: https://doi.org/10.1007/BF02558142