中国近海棱梭拉丁名的更正  

Latin name correction of Liza affinis from China

作　　者：刘璐[1] 高天翔 韩志强 李纯厚[3] 孙典荣[3] 宋娜[1] 

机构地区：[1]中国海洋大学水产学院,山东青岛266003 [2]浙江海洋大学水产学院,浙江舟山316022 [3]中国水产科学研究院南海水产研究所,广东广州510300

出　　处：《中国水产科学》2016年第5期1108-1116,共9页Journal of Fishery Sciences of China

基　　金：公益性行业(农业)科研专项(201303048);国家自然科学基金项目(41506158);国家科技基础条件平台-水产种质资源平台项目

摘　　要：为解决我国棱梭（原定名为Liza carinata）命名的问题，本研究采集了中国近海7个地理群体的棱梭样品，并进行形态特征分析和DNA条形码研究。形态学研究结果显示，中国近海棱梭样品的胸鳍长度／体长、头长／体长的比值分别为15．O％-18．3％、22．5％～25．1％，与前人记录的Liza affinis的胸鳍长度／体长（14．5％～18．4％）、头长／体长比值（22．1％～26．9％）相吻合，而与Liza carinata胸鳍长度／体长（19．8％-23．9％）、头长／体长比值（27．0％-31．3％）范围不相符。DNA条形码分析结果表明，GenBank中Liza carinata和Liza affinis的COI基因同源序列遗传距离为13．11％，而本研究所采集样品种内差异为0．08％。NJ邻接关系树显示，本研究所使用样品与Liza affinis聚为一支，遗传距离为0．08％，而与Liza carinata的遗传距离为13．06％，已达到种以上水平。综上，本研究认为中国近海棱梭的拉丁名应为Liza affinis，我国近海是否存在真正的Liza carinata尚需进一步研究。The eastern keeled mullet （Liza affinis）, which belongs to the Liza genus （Mugilidae, Mugilformes）, is an economically important coastal fish in China. For a long time in China, the eastern keeled mullet was consid- ered to be Liza carinata, but many lines of research suggested that this was incorrect. To address this problem, we analyzed L. affinis based on morphological characters and DNA barcoding, and compared it with other fishes in the Liza genus. During October 2013 to December 2014, we collected samples from Chinese coastal waters, in- cluding Ningde, Jinjiang, Xiamen, Jinmen, Humen, Zhanjiang, and the Beibu Gulf. The specimens included in this study had the following morphological characteristics： pectoral fin length/body length ratio of 15.0%-18.3% and head length/body length ratio of 22.5%-25.1%, consistent with data reported by Senou （1987） for L. affinis （14.5%-18.4% and 22.1%-26.9%, respectively）, and different from those obtained for L. carinata （19.8%-23.9% and 27.0%-31.3%, respectively）. A partial sequence of the mitochondrial cytochrome oxidase subunit I （COI） gene was used in a phylogenetic analysis. The net genetic distance between L. affinis and L. carinata recorded at GenBank is 13.11%. A neighbor-joining tree showed that our samples clustered with L. affinis from GenBank with a genetic distance of 0.08%. However, the genetic distance between our samples and L. carinata was 13.06%, greater than the threshold for species delimitation. The phylogenetic analysis strongly supported the validity of L. affinis in China at the genetic level. As a result, we propose that the eastern keeled mullet is L. affinis and we question whether L. carinata really exists in Chinese coastal waters. Although the task of identifying and describ- ing new species is ultimately achieved through comprehensive taxonomic work, DNA barcodes can significantly facilitate this process. The conventional taxonomic workflow, which usually requires the collection of morpho- logical and ecological data,

关 键 词：棱梭 形态学 遗传学 拉丁名 

分 类 号：S931[农业科学—渔业资源]