期刊
MOLECULAR PHYLOGENETICS AND EVOLUTION
卷 113, 期 -, 页码 150-160出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2017.05.012
关键词
Rhynchocyon; Giant sengis; Elephant-shrews; Africa; Macroscelididae; Phylogenetics; Taxonomy
资金
- National Science Foundation [DEB-1120904]
- California Academy of Sciences
- Biology Department and Graduate Student Council in Biology at San Francisco State University
- Society for the Study of Evolution
- Society for Integrative and Comparative Biology
- Division Of Environmental Biology
- Direct For Biological Sciences [1120904] Funding Source: National Science Foundation
Giant sengis (Macroscelidea; Macroscelididae; Rhynchocyon), also known as giant elephant-shrews, are small-bodied mammals that range from central through eastern Africa. Previous research on giant sengi systematics has relied primarily on pelage color and geographic distribution. Because some species have complex phenotypic variation and large geographic ranges, we used molecular markers to evaluate the phylogeny and taxonomy of the genus, which currently includes four species: R. chrysopygus, R. cirnei (six subspecies), R. petersi (two subspecies), and R. udzungwensis. We extracted DNA from fresh and historical museum samples from all taxa except one R. cirnei subspecies, and we generated and analyzed approximately 4700 aligned nucleotides (2685 bases of mitochondrial DNA and 2019 bases of nuclear DNA) to reconstruct a molecular phylogeny. We genetically evaluate Rhynchocyon spp. sequences previously published on GenBank, propose that the captive R. petersi population in North American zoos is likely R. p. adersi, and suggest that hybridization among taxa is not widespread in Rhynchocyon. The DNA sample we have from the distinctive but undescribed giant sengi from the Boni forest of northern coastal Kenya is unexpectedly nearly identical to R chrysopygus, which will require further study. Our analyses support the current morphology-based taxonomy, with each recognized species forming a monophyletic Glade, but we propose elevating R. c. stuhlmanni to a full species. (C) 2017 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据