Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia

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	Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia
	Jakovlic, Ivan; Gui, Jian-Fang
刊名	GENETICA
	2011-06-01
卷号	139 期号:6 页码:789-804
关键词	Carassius auratus complex Gibel carp D-loop Clonal diversity Invasive species Microsatellites Ploidy
ISSN号	0016-6707
通讯作者	Gui, JF (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Grad Sch, Wuhan 430072, Peoples R China ; jfgui@ihb.ac.cn
中文摘要	Carassius auratus is an invasive species in European waters, comprising a complex of diploid and polyploid forms with different modes of reproduction. However, the evolutionary history and relationships between the diploids and polyploids are still unresolved. In this study, 51.5% diploids and 48.5% triploids, including four triploid males, were discovered among the 363 individuals sampled in Croatia. We used eight microsatellite loci and mitochondrial displacement loop sequences to analyze the structure and origin of populations; and to attempt to infer the evolutionary history of the two different forms in Croatia. Microsatellite analyses revealed high allelic and clonal diversity, corroborating that high propagule vectors can compensate for the negative effects of genetic bottlenecks in successful invasive species. The absence of significant population structuring confirmed recent origin and rapid spreading of populations. No evidence was found for the existence of native European populations. Distances between individuals using both nuclear and mtDNA markers revealed the absence of substantial clustering on the ploidy level, while the split between the different ploidies on population level was only partial, suggesting that the reproductive isolation between the two forms is either of a very recent origin, or that there exists uni-, or bidirectional gene flow between the diploid and triploid forms.
英文摘要	Carassius auratus is an invasive species in European waters, comprising a complex of diploid and polyploid forms with different modes of reproduction. However, the evolutionary history and relationships between the diploids and polyploids are still unresolved. In this study, 51.5% diploids and 48.5% triploids, including four triploid males, were discovered among the 363 individuals sampled in Croatia. We used eight microsatellite loci and mitochondrial displacement loop sequences to analyze the structure and origin of populations; and to attempt to infer the evolutionary history of the two different forms in Croatia. Microsatellite analyses revealed high allelic and clonal diversity, corroborating that high propagule vectors can compensate for the negative effects of genetic bottlenecks in successful invasive species. The absence of significant population structuring confirmed recent origin and rapid spreading of populations. No evidence was found for the existence of native European populations. Distances between individuals using both nuclear and mtDNA markers revealed the absence of substantial clustering on the ploidy level, while the split between the different ploidies on population level was only partial, suggesting that the reproductive isolation between the two forms is either of a very recent origin, or that there exists uni-, or bidirectional gene flow between the diploid and triploid forms.
学科主题	Genetics & Heredity
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Genetics & Heredity
研究领域[WOS]	Genetics & Heredity
关键词[WOS]	SILVER CRUCIAN CARP ; MITOCHONDRIAL-DNA ; GIBEL CARP ; POPULATION-GENETICS ; CLONAL DIVERSITY ; CYPRINUS-CARPIO ; HYBRIDIZATION ; CHROMOSOME ; MARKERS ; FISHES
收录类别	SCI
资助信息	Modern Agro-industry Technology Research System[NYCYTX-49]; National Natural Science Foundation of China[30630050]; Graduate School of Chinese Academy of Sciences[082Z03]; State Key Laboratory of Freshwater Ecology and Biotechnology[2008FBZ15]; Institute of Hydrobiology, Chinese Academy of Sciences[075A011301, 085A021301]
语种	英语
WOS记录号	WOS:000291751300008
公开日期	2011-11-09
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16329]
专题	水生生物研究所_鱼类生物学及渔业生物技术研究中心_期刊论文
作者单位	Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Grad Sch, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Jakovlic, Ivan,Gui, Jian-Fang. Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia[J]. GENETICA,2011,139(6):789-804.
APA	Jakovlic, Ivan,&Gui, Jian-Fang.(2011).Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia.GENETICA,139(6),789-804.
MLA	Jakovlic, Ivan,et al."Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia".GENETICA 139.6(2011):789-804.