In the Asia-Pacific region, the COI DNA test revealed the divergence of the bivalve mollusc Mactra chinensis into three species; can these species be distinguished using shell coloration and sperm structure?

doi:10.1186/s10152-021-00553-0

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生物分类与系统演化实验室

	In the Asia-Pacific region, the COI DNA test revealed the divergence of the bivalve mollusc Mactra chinensis into three species; can these species be distinguished using shell coloration and sperm structure?
	Reunov, Arkadiy 3,4; Lutaenko, Konstantin 4; Vekhova, Evgenia 4; Zhang, Junlong 5; Zakharov, Evgeny 1; Sharina, Svetlana 2,4; Alexandrova, Yana 4; Reunova, Yulia 4; Akhmadieva, Anna 4; Adrianov, Andrey 2,4
刊名	HELGOLAND MARINE RESEARCH
	2021-12-01
卷号	75 期号:1 页码:19
关键词	Pacific Ocean Mactra chinensis COI DNA barcoding Shell coloration Sperm structure
ISSN号	1438-387X
DOI	10.1186/s10152-021-00553-0
通讯作者	Reunov, Arkadiy(areunov@stfx.ca)
英文摘要	According to COI DNA barcoding testing, the marine bivalve mollusc Mactra chinensis, which is native to the Asia-Pacific region, diverged into three species. These species were preliminary characterized as M. chinensis COI clade I, M. chinensis COI clade II and M. chinensis COI clade III. To find out whether it is possible to morphologically distinguish samples representing genetic clades, we examined the color of the shells and the structure of the spermatozoa. It was found that the number of detected coloration types exceeds the number of detected species. In addition, it was shown that individuals belonging to the same genetic clade can have shells of different colors. Consequently, it is impossible to choose one type of shell coloration as a species-specific trait. For sperm, the sperm morphological patterns found in each of the three species are consistent with the M. chinensis sperm model described in previous reports. However, the single sperm variant is also not applicable to discriminate between species derived from M. chinensis, since heterogeneous variants of spermatozoa differing in the length of the acrosomal rod were found. We hypothesized that genetic divergence of species could cause a shift towards predominance of one of the sperm variants, and that species-specific sperm morphs could be quantitatively dominant in molluscs belonging to different clades. However, the dominant sperm morphs were the same in COI clade I and COI clade III. Thus, dominant sperm morphs are useless as species-specific traits. However, shell color and sperm parameters are specific to different geographic regions, and it seems that unique environmental factors can determine shell color and sperm morphology. As a result, both shells and spermatozoa can be used to distinguish the geographical forms of M. chinensis, regardless of the belonging of the forms to a particular genetic clade. Here we propose the introduction of geographic identifiers, in which the shell color and parameters of sperm sets are used as morphological criteria to determine the geographical origin of mollusc specimens belonging to the M. chinensis species complex.
资助项目	FEB RAS Grants[12-I-P30-10] ; FEB RAS Grants[12-I-P6-04] ; Russian Government[11. G 34.31.0010] ; Program for Fundamental Research The Far East[15-I-6-007_o] ; International Science Partnership Program of the Chinese Academy of Science[133137KYSB20200002] ; Special Funds for the Young Scholars of Taxonomy of the Chinese Academy of Sciences[ZSBR-009]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	BMC
WOS记录号	WOS:000712965000001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/177158]
专题	海洋研究所_海洋生物分类与系统演化实验室
通讯作者	Reunov, Arkadiy
作者单位	1.Canadian Ctr DNA Barcoding, Biodivers Inst Ontario, Guelph, ON, Canada 2.Far Eastern Fed Univ, Sch Nat Sci, 10 Ajax Bay, Vladivostok 690950, Russia 3.St Francis Xavier Univ, Dept Biol, Antigonish, NS B2G 2W5, Canada 4.Russian Acad Sci, Natl Sci Ctr Marine Biol, Far Eastern Branch, Vladivostok 690041, Russia 5.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Reunov, Arkadiy,Lutaenko, Konstantin,Vekhova, Evgenia,et al. In the Asia-Pacific region, the COI DNA test revealed the divergence of the bivalve mollusc Mactra chinensis into three species; can these species be distinguished using shell coloration and sperm structure?[J]. HELGOLAND MARINE RESEARCH,2021,75(1):19.
APA	Reunov, Arkadiy.,Lutaenko, Konstantin.,Vekhova, Evgenia.,Zhang, Junlong.,Zakharov, Evgeny.,...&Adrianov, Andrey.(2021).In the Asia-Pacific region, the COI DNA test revealed the divergence of the bivalve mollusc Mactra chinensis into three species; can these species be distinguished using shell coloration and sperm structure?.HELGOLAND MARINE RESEARCH,75(1),19.
MLA	Reunov, Arkadiy,et al."In the Asia-Pacific region, the COI DNA test revealed the divergence of the bivalve mollusc Mactra chinensis into three species; can these species be distinguished using shell coloration and sperm structure?".HELGOLAND MARINE RESEARCH 75.1(2021):19.