Detection of hybridization between two loach species (Paramisgurnus dabryanus and Misgurnus anguillicaudatus) in wild populations

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 期刊论文

	Detection of hybridization between two loach species (Paramisgurnus dabryanus and Misgurnus anguillicaudatus) in wild populations
	You, Cuihong 1,2; Yu, Xiaomu 1; Tong, Jingou 1
刊名	ENVIRONMENTAL BIOLOGY OF FISHES
	2009-09-01
卷号	86 期号:1 页码:65-71
关键词	Loach Natural hybridization Artificial cross Fertility Microsatellite
ISSN号	0378-1909
通讯作者	Tong, JO, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
中文摘要	Artificial interspecific hybrids between large scale loach P. dabryanus and tetraploid pond loach M. anguillicaudatus (Cobitidae, Cypriniformes) are viable. To detect the occurrence of possible natural hybridization, genetic analyses by using microsatellite markers were performed for natural populations of large scale loach and pond loach, the reciprocal laboratory hybrids, and "supposed hybrids" with ambiguous morphology. The fertility of the artificial hybrids was also tested. At one diagnostic microsatellite (Mac50), one out of 20 "supposed hybrids" was identified to be F-1 hybrid between the two loach species because it had the same genotype as that of the laboratory hybrids. The triploid hybrids between the two species were confirmed to be female-sterile. The results show that rare hybridization has occurred between diploid large scale loach and tetraploid pond loach in nature although it may have little effect in genetic introgression. This study is helpful for fish conservation and encourages further investigation on natural hybridization and introgression of loaches.
英文摘要	Artificial interspecific hybrids between large scale loach P. dabryanus and tetraploid pond loach M. anguillicaudatus (Cobitidae, Cypriniformes) are viable. To detect the occurrence of possible natural hybridization, genetic analyses by using microsatellite markers were performed for natural populations of large scale loach and pond loach, the reciprocal laboratory hybrids, and "supposed hybrids" with ambiguous morphology. The fertility of the artificial hybrids was also tested. At one diagnostic microsatellite (Mac50), one out of 20 "supposed hybrids" was identified to be F(1) hybrid between the two loach species because it had the same genotype as that of the laboratory hybrids. The triploid hybrids between the two species were confirmed to be female-sterile. The results show that rare hybridization has occurred between diploid large scale loach and tetraploid pond loach in nature although it may have little effect in genetic introgression. This study is helpful for fish conservation and encourages further investigation on natural hybridization and introgression of loaches.
学科主题	Ecology; Marine & Freshwater Biology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Ecology ; Marine & Freshwater Biology
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology
关键词[WOS]	ATLANTIC SALMON ; BROWN TROUT ; INTROGRESSIVE HYBRIDIZATION ; HYBRIDS ; TRUTTA ; SALAR ; MIZOLEPIS ; SURVIVAL
收录类别	SCI
资助信息	NSFC [30370225]; NSF of Hubei Province [2004ABC005]
语种	英语
WOS记录号	WOS:000271264000010
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/7516]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	You, Cuihong,Yu, Xiaomu,Tong, Jingou. Detection of hybridization between two loach species (Paramisgurnus dabryanus and Misgurnus anguillicaudatus) in wild populations[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2009,86(1):65-71.
APA	You, Cuihong,Yu, Xiaomu,&Tong, Jingou.(2009).Detection of hybridization between two loach species (Paramisgurnus dabryanus and Misgurnus anguillicaudatus) in wild populations.ENVIRONMENTAL BIOLOGY OF FISHES,86(1),65-71.
MLA	You, Cuihong,et al."Detection of hybridization between two loach species (Paramisgurnus dabryanus and Misgurnus anguillicaudatus) in wild populations".ENVIRONMENTAL BIOLOGY OF FISHES 86.1(2009):65-71.