Morphological and Genetic Identification of the Validity of the Species Atrina chinensis (Bivalvia: Pinnidae)

Dongxiu Xue; Haiyan Wang; Tao Zhang; Yan Gao; Suping Zhang; Fengshan Xu

doi:10.2983/035.031.0318

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1 August 2012 Morphological and Genetic Identification of the Validity of the Species Atrina chinensis (Bivalvia: Pinnidae)

Dongxiu Xue, Haiyan Wang, Tao Zhang, Yan Gao, Suping Zhang, Fengshan Xu

Author Affiliations +

Dongxiu Xue
Key Laboratory of Ecology and Environment Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, Shandong 266071, China
Haiyan Wang
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, Shandong 266071, China
Tao Zhang, Yan Gao
Key Laboratory of Ecology and Environment Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, Shandong 266071, China
Suping Zhang, Fengshan Xu
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, Shandong 266071, China

J. of Shellfish Research, 31(3):739-747 (2012). https://doi.org/10.2983/035.031.0318

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Abstract

Identification of pinnid species is based largely on morphological characteristics that are highly plastic; thus, classification of pinnids remains controversial. We identified a species of Atrina, found along the southern China coast, as Atrina chinensis Deshayes, 1841, but other authors have treated it as a synonym of Atrina pectinata Linnaeus, 1767. The objective of this study was to clarify the taxonomic status of this species by comparing both morphological and genetic data with data from other Atrina species. Of the 4 shell parameters analyzed, only 1 (size of the posterior adductor) differed significantly between A. pectinata and A. chinensis. However, these species did not form a clade on the phylogenetic trees constructed based on nuclear 28S rRNA or the mitochondrial cytochrome oxidase I (mtCOI) and 16S rRNA genes. Moreover, A. chinensis is, genetically, is a sister taxon to Atrina vexillum instead of A. pectinata. We suggest that A. chinensis is a valid taxon and not a synonym of A. pectinata.

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Dongxiu Xue, Haiyan Wang, Tao Zhang, Yan Gao, Suping Zhang and Fengshan Xu "Morphological and Genetic Identification of the Validity of the Species Atrina chinensis (Bivalvia: Pinnidae)," Journal of Shellfish Research 31(3), (1 August 2012). https://doi.org/10.2983/035.031.0318

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