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New Genetic Evidence from Three Keel-Backed Liza Species Based on DNA Barcoding Confirms Morphology-Based Identification

文献类型： 外文期刊

作者： Liu, Lu 1 ; Panhwar, Sher Khan 2 ; Gao, Tianxiang 3 ; Han, Zhiqiang 3 ; Li, Chunhou 4 ; Sun, Dianrong 4 ; Song, Na 1 ;

作者机构： 1.Ocean Univ China, Fisheries Coll, Qingdao 266003, Peoples R China

2.Univ Karachi, Ctr Excellence Marine Biol, Karachi 75270, Pakistan

3.Zhejiang Ocean Univ, Fishery Coll, Qingdao 266003, Peoples R China

4.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510003, Guangdong, Peoples R China

关键词： DNA barcoding;Liza affinis;Liza carinata;Liza klunzingeri;Morphological identification

期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.831； 五年影响因子：0.768 ）

ISSN： 0030-9923

年卷期： 2017 年 49 卷 5 期

页码：

收录情况： SCI

摘要： Three Liza species exhibiting a dorsal keel have been identified based on morphology: Liza affinis, Liza carinata, and Liza klunzingeri. To confirm the validity of the species by molecular methods, we sequenced a fragment of the cytochrome oxidase subunit I (COI) gene of mitochondrial DNA of Liza affinis and Liza klunzingeri from coastal waters of China and Pakistan, respectively. Sequences of L. carinata were obtained from GenBank. A neighbor-joining tree showed the specimens to form a strong monophyletic group. The mean within-species genetic distances for L. affinis, L. carinata, and L. klunzingeri were 0.26%, 0.52%, and 0.47%, respectively. The mean genetic distances among L. affinis, L. carinata, and L. klunzingeri ranged from 12.22% to 14.74%, higher than the threshold for species delimitation. The results confirmed the taxonomic validity of the three Liza species and verified that the COI gene could provide effective DNA barcoding for identification.

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