文献类型： 外文期刊
作者： Xu, Lei 1 ; Wang, Lianggen 1 ; Ning, Jiajia 1 ; Li, Hong 1 ; Ji, Yingying 1 ; Du, Feiyan 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou, Guangdong, Peoples R China
2.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou, Guangdong, Peoples R China
3.Minist Agr, Key Lab South China Sea Fishery Resources Dev & U, Guangzhou, Guangdong, Peoples R China
4.Shanghai Ocean Univ, Coll Marine Sci, Shanghai, Peoples R China
关键词： DNA taxonomy; COI; South China Sea; ostracods
期刊名称：MITOCHONDRIAL DNA PART A （ 影响因子：1.514； 五年影响因子：0.707 ）
ISSN： 2470-1394
年卷期： 2019 年 30 卷 1 期
页码：
收录情况： SCI
摘要： Ostracods (Crustacea, Ostracoda) are small bivalved crustaceans, contributing over 200 described species to the marine zooplankton community. They are widely distributed and are relatively abundant components of the mesozooplankton, playing an important role in the transport of organic matter to deep layers. However, identification of ostracods based on micro-morphological characters is extremely difficult and time-consuming. Previous fragmentary taxonomic studies of ostracods in the South China Sea (SCA), were based solely on morphology. Here, by analysing the mitochondrial COI gene, we explore the taxa across the SCA using molecular tools for the first time. Our results show that sequence divergence among species varies within a large range, from 12.93% to 35.82%. Sixteen of the taxonomic units recovered by DNA taxonomy agree well with morphology, but Paraconchoecia oblonga, Conchoecia magna and Halocypris brevirostris split into two clades each, each of which contains cryptic species.
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