First Evidence for Hybrid Breakdown in the Backcross of Olive Flounder, Paralichthys olivaceus, and Summer Flounder, Paralichthys dentatus

doi:10.1111/j.1749-7345.2011.00473.x

	First Evidence for Hybrid Breakdown in the Backcross of Olive Flounder, Paralichthys olivaceus, and Summer Flounder, Paralichthys dentatus
	Xu, Dongdong 1,2; You, Feng 1; Li, Jun 1; Wu, Zhihao 1; Xiao, Zhizhong 1; Zhang, Peijung 1; Xu, Yongli 1; Wang, Bo 3
刊名	JOURNAL OF THE WORLD AQUACULTURE SOCIETY
	2011-06
卷号	42 期号:3 页码:347-353
ISSN号	0893-8849
DOI	10.1111/j.1749-7345.2011.00473.x
英文摘要	Hybrid and parental backcross experiments were performed using olive flounder, Paralichthys olivaceus, summer flounder, Paralichthys dentatus, and their female F(1) hybrids to examine hybrid fitness in the backcross. Fertilization rate, hatching rate, and combined fitness measure (CFM, product of fertilization rate and hatching rate) were detected and the results showed that the CFM of hybrid and backcross generations was reduced significantly compared to pure olive flounder crosses. Genomic inheritance from parents to backcross progeny was also detected by amplified fragment length polymorphism (AFLP). Almost all AFLP bands observed in parents were presented in backcross progeny (backcross1, 218/227; backcross2, 265/282), although 9 and 17 parental bands were missing in backcross1 and backcross2, respectively. Novel bands (absent in parents) also occurred in progeny at the frequencies of 5.63% (13/231) in backcross1 and 3.28% (9/274) in backcross2. Additionally, 27.40 and 31.18% of AFLP markers deviated from expected Mendelian ratio in backcross1 and backcross2, respectively. The present study suggests that genetic incompatibilities may exist between olive flounder and summer flounder. Furthermore, possible implications of segregation distortion for reduced hybrid fitness in backcross generations are discussed.
资助项目	Ministry of Science and Technology of China[2006DKA30470-017]
WOS关键词	REPRODUCTIVE ISOLATION ; DARWINS COROLLARY ; SPECIATION ; FITNESS ; GENOME ; HYBRIDIZATION ; EVOLUTION ; HETEROSIS ; BRASSICA
WOS研究方向	Fisheries
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000291226500008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26156]
专题	自然资源部第一海洋研究所
通讯作者	You, Feng
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.China & Marine Fishery Inst Zhejiang Prov, Zhoushan 316100, Peoples R China 3.SOA, Inst Oceanog 1, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Xu, Dongdong,You, Feng,Li, Jun,et al. First Evidence for Hybrid Breakdown in the Backcross of Olive Flounder, Paralichthys olivaceus, and Summer Flounder, Paralichthys dentatus[J]. JOURNAL OF THE WORLD AQUACULTURE SOCIETY,2011,42(3):347-353.
APA	Xu, Dongdong.,You, Feng.,Li, Jun.,Wu, Zhihao.,Xiao, Zhizhong.,...&Wang, Bo.(2011).First Evidence for Hybrid Breakdown in the Backcross of Olive Flounder, Paralichthys olivaceus, and Summer Flounder, Paralichthys dentatus.JOURNAL OF THE WORLD AQUACULTURE SOCIETY,42(3),347-353.
MLA	Xu, Dongdong,et al."First Evidence for Hybrid Breakdown in the Backcross of Olive Flounder, Paralichthys olivaceus, and Summer Flounder, Paralichthys dentatus".JOURNAL OF THE WORLD AQUACULTURE SOCIETY 42.3(2011):347-353.