Volume 42 Issue 3
May  2021
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Li-Na Du, Jian Yang, Rui Min, Xiao-Yong Chen, Jun-Xing Yang. A review of the Cypriniform tribe Yunnanilini Prokofiev, 2010 from China, with an emphasis on five genera based on morphologies and complete mitochondrial genomes of some species. Zoological Research, 2021, 42(3): 310-334. doi: 10.24272/j.issn.2095-8137.2020.229
Citation: Li-Na Du, Jian Yang, Rui Min, Xiao-Yong Chen, Jun-Xing Yang. A review of the Cypriniform tribe Yunnanilini Prokofiev, 2010 from China, with an emphasis on five genera based on morphologies and complete mitochondrial genomes of some species. Zoological Research, 2021, 42(3): 310-334. doi: 10.24272/j.issn.2095-8137.2020.229

A review of the Cypriniform tribe Yunnanilini Prokofiev, 2010 from China, with an emphasis on five genera based on morphologies and complete mitochondrial genomes of some species

doi: 10.24272/j.issn.2095-8137.2020.229
Funds:  This study was supported by the Middle-Aged and Young Teachers’ Basic Ability Promotion Project of Guangxi, China (2020KY02026), Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education (ERESEP2020Z22), Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University (19A0104), Special Funds for Young Scholars of Taxonomy of the Chinese Academy of Sciences (ZSBR-011), National Natural Science Foundation of China (31872202, NSFC 31860600, U1702233, 31800454), Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Y4ZK111B01), Guangxi Natural Science Foundation (2017GXNSFFA198010), and Yunnan Provincial Science and Technology Department Foundation (202003AD150017, 2019BC002), and Sino BON-Inland Water Fish Diversity Observation Network
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  • The loach tribe Yunnanilini from China is reviewed here using morphological characters and complete mitochondrial genomes of select species. Molecular data suggest that the tribe Yunnanilini is not monophyletic and can be divided into three clades. Species of the Yunnanilus nigromaculatus group form an independent genus and are placed in Eonemachilus. In the phylogenetic tree, Y. jinxiensis clusters with Paranemachilus genilepis, and Y. pulcherrimus clusters with Micronemacheilus cruciatus, indicating that Y. jinxiensis and Y. pulcherrimus belong to Paranemachilus and Micronemacheilus, respectively. Based on morphological data, Y. bailianensis and Y. longibarbatus are placed in Heminoemacheilus, while Y. jinxiensis and Y. pulcherrimus, are placed in Paranemachilus and Micronemacheilus, respectively. Yunnanilus niulanensis and Y. qujinensis are treated as junior synonyms of Eonemachilus caohaiensis. Eonemachilus, Micronemacheilus, and Yunnanilus are show short separation between anterior and posterior nostrils. The genera can be distinguished from each other by mouth structure, lateral line and cephalic lateral-line canals, and papillae on median part of both lips. The anterior and posterior nostrils of Heminoemacheilus and Paranemachilus are closely set. Paranemachilus and Micronemacheilus are distinguished by cheeks covered with scales and lips with papillae, respectively. Our phylogenetic tree and morphological characters support Traccatichthys as a valid genus, which can be distinguished from Micronemacheilus by anterior and posterior nostrils closely set (vs. clearly separated). Four species are placed in Traccatichthys.
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