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Zoological Research 2022年第1期43卷 33-39页

作者： Zhi-Xian Sun Xue-Jian Li Wen-Qiao Tang Ya-Hui Zhao Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution Shanghai Ocean UniversityShanghai201306China

During revision of the genus Microphysogobio Mori,1934,we discovered a new species of Huigobio from the Yangtze River Basin in China.The new species,named Huigobio heterocheilus sp.nov.,can be distinguished from its congeners by a combination of the following characters:medial pad on lower lip not visible;ventral region scaleless before pelvic-fin insertion;lateral-line scales 39-40;caudal peduncle depth 49.2%-59.1%of length;barbel length 6.6%-10.7%of head length;black blotch between anterior margin of eye and upper lip.Using the K2P model and cytochrome b(cyt b)sequences,interspecific genetic distances between the new species and Huigobio exilicauda Jiang&Zhang,2013 and Huigobio chenhsienensis Fang,1938 were 13.2%and 15.1%,respectively.The new species is known from the upper reaches of the Xiangjiang River in the middle Yangtze River Basin.A diagnostic key for species of Huigobio Fang,1938 is provided.

关键词： Cyprinidae Yangtze insertion

A new species of the gudgeon genus Microphysogobio Mori,1934(Cypriniformes:Cyprinidae)from Zhejiang Province,China

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Zoological Research 2022年第4期43卷 356-361页

作者： Zhi-Xian Sun Bin-Qing Zhu Jun Wu Ya-Hui Zhao Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China Nanjing Institute of Environmental Sciences Ministry of Ecology and Environment of ChinaNanjingJiangsu 210042China

DEAR EDITOR,A new gobionine species,Microphysogobio oujiangensis sp.nov.,was collected from the Oujiang River Basin during field work in Lishui City,Zhejiang Province in 2021.The new species can be well distinguished from its congeners by the combination of the following characteristics:mouth shallow arc-shaped,width of cutting edge on upper jaw equal to half mouth width,central portion of anterior papillae arranged in one row with 6-10 well-developed papillae of equal size.

关键词： shallow shaped Zhejiang

A new species of Triplophysa(Cypriniformes,Nemacheilidae) from Weihe River in Gansu Province, China

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Zoological Research 2020年第4期41卷 465-470页

作者： Chen-Guang Feng Yu Zhang Chao Tong Bing-Zheng Zhou Xiao-Hui Li Yong-Tao Tang Wen-Zhu Song Kai Zhao Key Laboratory of Adaptation and Evolution of Plateau Biota Laboratory of Plateau Fish Evolutionary and Functional Genomicsand Qinghai Key Laboratory of Animal Ecological GenomicsNorthwest Institute of Plateau BiologyChinese Academy of SciencesXining 810008China School of Ecology and Environment Northwestern Polytechnical UniversityXi'an 710072China University of Chinese Academy of Sciences Beijing 100049China Biology Department University of PennsylvaniaPhiladelphiaPennsylvania 19104USA College of fisheries Henan Normal UniversityXinxiang 453007China

DEAR EDITOR,A new species of Tibetan loach,Triplophysa weiheensis sp.nov.,is described from the Weihe River in Gansu Province,China,based on morphological and molecular analyses.The new species can be distinguished from all known congeners by a unique combination of the following characters:scaleless;snout abruptly sloping downward,anterior to anterior nostril;lower jaw crescentic,not sharp;body without obvious mottling;lateral line interrupted on posterior trunk at pelvic-fin distal extremity.

关键词： Gansu Tibetan sharp

Genetic diversity and reproductive success of a wild population of Chinese sturgeon(Acipenser sinensis)from the Yangtze River inferred from juveniles born in 2014

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Zoological Research 2020年第4期41卷 423-430页

作者： Zhong-Yuan Shen Dan Yu Xin Gao Fu-Tie Zhang Huan-Zhang Liu The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhanHubei 430072China University of Chinese Academy of Sciences Beijing 100049China

The Chinese sturgeon(Acipenser sinensis Gray,1835)is a large anadromous fish species,which is under considerable threat due to dramatic declines in population numbers.In the current study,population genetic diversity and individual reproductive success were assessed using nuclear microsatellite markers(simple sequence repeat,SSR)and complete mitochondrial(mt DNA)genome analysis of juveniles born in 2014.Results showed the existence of size polymorphism in the mt DNA genome of Chinese sturgeon,which was caused by a repeat motif.Population genetic diversity was high based on both SSR(Ho:0.728±0.211;He:0.779±0.122)and mt DNA genome analyses(H:0.876±0.0035;Pi:0.0011±0.0010).A positive inbreeding coefficient(FIS:0.066±0.143)was also found,indicating the occurrence of inbreeding.Reconstruction of sibling groups identified 11 mothers and 11 fathers involved in reproduction of Chinese sturgeons in 2014.Variance in individual reproductive success was not significant,with reproductive success of parent fish instead shown to be relatively even(P=0.997>0.05),thus suggesting the absence of sweepstakes reproductive success(SRS).These results indicate that,in regard to conservation,loss of genetic diversity due to the effects of SRS is not of particular concern.However,we must focus on having an adequate number of adults and suitable environmental conditions to ensure that fish can reproduce.

关键词： instead absence Yangtze

Genetic diversity and temporal changes of an endemic cyprinid fish species, Ancherythroculter nigrocauda,from the upper reaches of Yangtze River

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Zoological Research 2019年第5期40卷 427-438页

作者： Dong-Dong Zhai Wen-Jing Li Huan-Zhang Liu Wen-Xuan Cao Xin Gao Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of Hydrobiology Chinese Academy of Sciences Wuhan Hubei 430072 China University of Chinese Academy of Sciences Beijing 100049 China

Small populations with low genetic diversity are prone to extinction. Knowledge on the genetic diversity and structure of small populations and their genetic response to anthropogenic effects are of critical importance for conservation management. In this study, samples of Ancherythroculter nigrocauda, an endemic cyprinid fish from the upper reaches of Yangtze River, were collected from five sites to analyze their genetic diversity and population structure using mitochondrial cytochrome b gene and 14 microsatellite loci. Haplotype diversity, nucleotide diversity, and expected heterozygosity indicated that the A. nigrocauda populations had low genetic diversity, and decreased heavily from 2001 to 2016. Significant genetic differentiation was found among different populations in the cyt b gene and SSR markers based on the genetic differentiation index (F ST), whereas no differentiation was found in 2001. Haplotype genealogy showed that eight out of 15 haplotypes were private to one population. The SSR STRUCTURE analysis showed that there were four genetic clusters in the A. nigrocauda samples, with each population forming a single cluster, except for the Chishui River (CSR) and Mudong River (MDR) populations, which formed a common cluster. Therefore, loss of genetic diversity and increased genetic differentiation were found in the A. nigrocauda populations, which could be attributed to dam construction, overfishing, and water pollution in the upper Yangtze River. It is therefore recommended that the government should ban fishing, control water pollution, increase river connectivity, and establish artificial breeding and stocking.

关键词： Genetic diversity Population structure Temporal change Conservation

Systematic relationships of Chinese freshwater semisulcospirids (Gastropoda, Cerithioidea) revealed by mitochondrial sequences

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Zoological Research 2019年第6期40卷 541-551页

作者： Li-Na Du Jun Chen Guo-Hua Yu Jun-Xing Yang Kunming Institute of Zoology Chinese Academy of SciencesKunming Yunnan 650223China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University) Ministry of EducationGuilin Guangxi 541004China Key Laboratory of the Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China Yunnan Key Laboratory of Plateau fish Breeding Kunming Institute of ZoologyChinese Academy of SciencesKunming Yunnan 650223China

The systematics of Semisulcospiridae in China is revised here based on morphological characters and mitochondrial phylogenetics. Phylogenetic relationships within the Chinese semisulcospirids were assessed via DNA sequences from mitochondrial analysis (cytochrome c oxidase I and 16S rRNA). This research contains most morphospecies of semisulcospirids previously recorded in China. Based on these results, the family of Chinese Semisulcospiridae is represented by three genera: i.e., viviparous Semisulcospira B?ttger, 1886, oviparous Hua Chen, 1943 and Koreoleptoxis Burch and Jung, 1988. These genera can be distinguished from each other by reproductive anatomy, reproductive mode, and radula features. Species of Hua are mainly distributed in southwest China and Guangxi, whereas Koreoleptoxis and Semisulcospira are mainly distributed in south and northeast China.

关键词： Phylogeny China Semisulcospira Hua Koreoleptoxis

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

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Zoological Research 2021年第3期42卷 310-334页

作者： Li-Na Du Jian Yang Rui Min Xiao-Yong Chen Jun-Xing Yang Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University) Ministry of EducationGuilinGuangxi 541004China Guangxi Key Laboratory of Rare and Endangered Animal Ecology College of Life ScienceGuangxi Normal UniversityGuilinGuangxi 541004China Key Laboratory of Environment Change and Resources Use in Beibu Gulf Nanning Normal UniversityNanningGuangxi 530001China Kunming Institute of Zoology Chinese Academy of SciencesKunmingYunnan 650223China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw 05282Myanmar State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyThe Innovative Academy of Seed DesignChinese Academy of SciencesKunmingYunnan 650223China Yunnan Key Laboratory of Plateau fish Breeding Yunnan Engineering Research Center for Plateau-Lake Health and RestorationKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China

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 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.

关键词： Eonemachilus Heminoemacheilus Micronemacheilus,Paranemachilus,Yunnanilus Taxonomy