Classification of common oysters from North China

	Classification of common oysters from North China
	Wang, Haiyan 1,2; Zhang, Guofan 2; Lio, Xiao 2; Guo, Ximing 1
刊名	JOURNAL OF SHELLFISH RESEARCH
	2008-05-01
卷号	27 期号:3 页码:495-503
关键词	Oyster Taxonomy Cytochrome Oxidase i 165 Rrna 285 Rrna Crassostrea Gigas C. Ariakensis Alectryonella Plicatula Saccostrea Cucullata Suminoe Oyster
ISSN号	0730-8000
文献子类	Article
英文摘要	Oysters are commonly found on rocky shores along China's northern coast, although there is considerable confusion as to what species they are. To determine the taxonomic status of these oysters, we collected specimens from nine locations north of the Yangtze River and conducted genetic identification using DNA sequences. Fragments from three genes, mitochondrial 165 rRNA, mitochondria! cytochrome oxidase I (COI), and nuclear 285 rRNA, were sequenced in six oysters from each of the nine sites. Phylogenetic analysis of all three gene fragments clearly demonstrated that the small oysters commonly found on intertidal rocks in north China are Crassostrea gigas (Thunberg, 1793), not C. plicatula (the zhe oyster) as widely assumed. Their small size and irregular shell characteristics are reflections of the stressful intertidal environment they live in and not reliable characters for classification. Our study confirms that the oysters from Weifang, referred to as Jinjiang oysters or C. rivularis (Gould, 1861), are C. ariakensis (Wakiya, 1929). We found no evidence for the existence of C. talienwhanensis (Crosse, 1862) and other Crassostrea species in north China. Our study highlights the need for reclassifying oysters of China with molecular data.; Oysters are commonly found on rocky shores along China's northern coast, although there is considerable confusion as to what species they are. To determine the taxonomic status of these oysters, we collected specimens from nine locations north of the Yangtze River and conducted genetic identification using DNA sequences. Fragments from three genes, mitochondrial 165 rRNA, mitochondria! cytochrome oxidase I (COI), and nuclear 285 rRNA, were sequenced in six oysters from each of the nine sites. Phylogenetic analysis of all three gene fragments clearly demonstrated that the small oysters commonly found on intertidal rocks in north China are Crassostrea gigas (Thunberg, 1793), not C. plicatula (the zhe oyster) as widely assumed. Their small size and irregular shell characteristics are reflections of the stressful intertidal environment they live in and not reliable characters for classification. Our study confirms that the oysters from Weifang, referred to as Jinjiang oysters or C. rivularis (Gould, 1861), are C. ariakensis (Wakiya, 1929). We found no evidence for the existence of C. talienwhanensis (Crosse, 1862) and other Crassostrea species in north China. Our study highlights the need for reclassifying oysters of China with molecular data.
学科主题	Fisheries ; Marine & Freshwater Biology
语种	英语
WOS记录号	WOS:000256117200003
公开日期	2010-12-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/6105]
专题	海洋研究所_海洋生物技术研发中心
作者单位	1.Rutgers State Univ, Inst Marine & Coastal Sci, Haskin Shellfish Res Lab, Piscataway, NJ 08349 USA 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haiyan,Zhang, Guofan,Lio, Xiao,et al. Classification of common oysters from North China[J]. JOURNAL OF SHELLFISH RESEARCH,2008,27(3):495-503.
APA	Wang, Haiyan,Zhang, Guofan,Lio, Xiao,&Guo, Ximing.(2008).Classification of common oysters from North China.JOURNAL OF SHELLFISH RESEARCH,27(3),495-503.
MLA	Wang, Haiyan,et al."Classification of common oysters from North China".JOURNAL OF SHELLFISH RESEARCH 27.3(2008):495-503.