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Molecular Phylogeny of Nycticebus Inferred from Mitochondrial Genes |
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| Authors: | Jing-Hua Chen Deng Pan Colin Groves Ying-Xiang Wang Etsuo Narushima Helena Fitch-Snyder Paul Crow Vu Ngoc Thanh Oliver Ryder Hong-Wei Zhang Yun-xin Fu Ya-ping Zhang |
| Affiliation: | (1) Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, 650223, China;(2) School of Life Science, Shandong University, Jinan, 250000, China;(3) Laboratory for Conservation and Utilization of Bio-resources, Yunnan University, Kunming, China;(4) The Graduate School, Chinese Academy of Sciences, Beijing, 100039, China;(5) School of Archaeology & Anthropology, Australian National University, Canberra, Australia;(6) Department of Phylogensis and Evolution, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, 650223, China;(7) Ueno Zoological Gardens, Taito-ku, Tokyo, Japan;(8) Zoological Society of San Diego, San Diego, California, USA;(9) Kadoorie Farm & Botanic Garden Corporation, Hong Kong, China;(10) Department of Vertebrate Zoology, Vietnam National University, Hanoi, Vietnam;(11) Human Genetics Center, University of Texas at Houston, Houston, Texas, USA |
| Abstract: | Researchers are still discussing the classification of Nycticebus. We established a molecular phylogeny covering all recognized taxa in Nycticebus to provide information for further evaluation. We sequenced partial D-loop (ca. 390 bp) and cytochrome b genes (425 bp) from 22 specimens. We separated most of the major groups except for some mixing of Nycticebus. coucang coucang and N. bengalensis. Nycticebus pygmaeus diverged earlier from the ancestral stock than the other taxa. Nycticebus coucang menagensis was well discriminated from N. c. coucang. It may be possible to explain the mixing of Nycticebus coucang coucang and N. bengalensis by the hybridization between the 2 groups in the field. Although our data did not provide direct evidence for or against the new proposal that Nycticebus coucang javanicus be raised to the rank of a distinct species (N. javanicus), we have good evidence for regarding N. c. menagensis as a species.Jing-Hua Chen and Deng Pan made equal contributions to the work. |
| Keywords: | classification mitochondrial gene molecular phylogeny slow loris |
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