Computational molecular species delimitation and taxonomic revision of the gecko genus Ebenavia Boettger, 1878
Computational molecular species delimitation and taxonomic revision of the gecko genus Ebenavia Boettger, 1878
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DOI：
10.1007/s00114-018-1574-9
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发表时间：
2018-08-01
影响因子：
1.8
通讯作者：
Glaw, Frank
中科院分区：
文献类型：
--
作者：
Hawlitschek, Oliver;Scherz, Mark D.;Glaw, Frank
在许多生物群体中已经发现了隐种，必须假定它们构成了全球生物多样性的重要部分。以马达加斯加及周边岛屿Ebenavia inunguis群壁虎为研究对象，利用物种划分算法（GMYC、BOLD、BPP）、COI条形码散度、核标记PRLR诊断密码子索引、诊断分类形态特征和连续形态特征的显著差异对其进行分类修正。BPP得到10个可操作的分类单位，而GMYC （a 27）和BOLD（26）表明存在大量的过度分裂。因此，我们复活了Ebenavia boettgeri Boulenger 1885，并描述了Ebenavia tuelinae sp. nov, Ebenavia safari sp. nov和Ebenavia robusta sp. nov，将Ebenavia的已知物种数量从2个增加到6个。BPP检索到的Ebenavia的进一步谱系可能证明其属于种或亚种，但进一步的分类学结论要等到获得更多数据后才能得出。最后，我们提出了一种识别键，提供了一个更新的分布地图，并讨论了计算种划分的诊断价值以及形态学和分子诊断特征。
Cryptic species have been detected in many groups of organisms and must be assumed to make up a significant portion of global biodiversity. We study geckos of the Ebenavia inunguis complex from Madagascar and surrounding islands and use species delimitation algorithms (GMYC, BOLD, BPP), COI barcode divergence, diagnostic codon indels in the nuclear marker PRLR, diagnostic categorical morphological characters, and significant differences in continuous morphological characters for its taxonomic revision. BPP yielded 10 operational taxonomic units, whereas GMYC (a 27) and BOLD (26) suggested substantial oversplitting. In consequnce, we resurrect Ebenavia boettgeri Boulenger 1885 and describe Ebenavia tuelinae sp. nov., Ebenavia safari sp. nov., and Ebenavia robusta sp. nov., increasing the number of recognised species in Ebenavia from two to six. Further lineages of Ebenavia retrieved by BPP may warrant species or subspecies status, but further taxonomic conclusions are postponed until more data become available. Finally, we present an identification key to the genus Ebenavia, provide an updated distribution map, and discuss the diagnostic values of computational species delimitation as well as morphological and molecular diagnostic characters.