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Early embryo and larval development of inviable intergeneric hybrids derived from Crassostrea angulata and Saccostrea cucullata
Su Jiaqi; Wang Zhaoping; Zhang Yuehuan; Yan Xiwu; Li Qiongzhen; Yu Ruihai; Wang, ZP (reprint author), Ocean Univ China, Coll Fisheries, Minist Educ, Key Lab Mariculture, Qingdao 266003, Peoples R China.
2016
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
Volume15Issue:3Pages:515-522
AbstractTo detect the intergeneric hybridization between the oyster Crassostrea angulata and Saccostrea cucullata coexisting along the southern coast of China, reciprocal crosses were conducted between the two species. Barriers for sperm recognizing, binding, penetrating the egg, and forming the pronucleus were detected by fluorescence staining. From the results, although fertilization success was observed in hybrid crosses, the overall fertilization rate was lower than that of intraspecific crosses. A large number of hybrid larvae died at 6-8 d after hatching, and those survived could not complete metamorphosis. C. angulata a (TM) Eurox S. cucullata a (TM), larvae had a growth rate similar to that of the maternal species, whereas S. cucullata a (TM) Euro x C. angulata a (TM), larvae grew the slowest among all crosses. Molecular genetics analysis revealed that hybrid progeny were amphimixis hybrids. This study demonstrated that hybrid embryos generated by crossing C. angulata and S. cucullata could develop normally to the larval state, but could not complete metamorphosis and then develop to the spat stage. Thus, there is a post-reproductive isolation between C. angulata and S. cucullata.
Department[Su Jiaqi; Wang Zhaoping; Yu Ruihai] Ocean Univ China, Coll Fisheries, Minist Educ, Key Lab Mariculture, Qingdao 266003, Peoples R China; [Zhang Yuehuan] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Biol Resources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Yan Xiwu] Dalian Ocean Univ, Coll Fisheries & Life Sci, Engn Res Ctr Shellfish Culture & Breeding Liaonin, Dalian 116023, Peoples R China; [Li Qiongzhen] Guangxi Acad Fishery Sci, Key Lab Mariculture, Nanning 530021, Peoples R China ; LMB
KeywordCrassostrea Angulata Saccostrea Cucullata Intergeneric Hybridization Hybrid Inviability Reproductive Isolation
Subject AreaOceanography
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15413
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding AuthorWang, ZP (reprint author), Ocean Univ China, Coll Fisheries, Minist Educ, Key Lab Mariculture, Qingdao 266003, Peoples R China.
Recommended Citation
GB/T 7714
Su Jiaqi,Wang Zhaoping,Zhang Yuehuan,et al. Early embryo and larval development of inviable intergeneric hybrids derived from Crassostrea angulata and Saccostrea cucullata[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2016,15(3):515-522.
APA Su Jiaqi.,Wang Zhaoping.,Zhang Yuehuan.,Yan Xiwu.,Li Qiongzhen.,...&Wang, ZP .(2016).Early embryo and larval development of inviable intergeneric hybrids derived from Crassostrea angulata and Saccostrea cucullata.JOURNAL OF OCEAN UNIVERSITY OF CHINA,15(3),515-522.
MLA Su Jiaqi,et al."Early embryo and larval development of inviable intergeneric hybrids derived from Crassostrea angulata and Saccostrea cucullata".JOURNAL OF OCEAN UNIVERSITY OF CHINA 15.3(2016):515-522.
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