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Phenotypic trait of Crassostrea hongkongensis female x C. angulata male hybrids in southern China
Zhang, Yuehuan; Zhang, Yang; Jun, Li; Wang, Zhaoping; Yan, Xiwu; Yu, Ziniu; Wang, ZP (reprint author), Ocean Univ China, Coll Fisheries, 5 Yushan Rd, Qingdao 266003, Peoples R China.; Yu, ZN (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China.
2016
Source PublicationAQUACULTURE RESEARCH
Volume47Issue:11Pages:3399-3409
AbstractThe Hong Kong oyster (Crassostrea hongkongensis) and the Portuguese oyster (Crassostrea angulata) are important aquaculture species in southern China. To understand the potential feasibility of hybridization between the two species, two-by-two factorial cross-experiments were conducted in Shenzhen (Guangdong province). An asymmetry in fertilization was revealed: C. hongkongensis eggs could be fertilized by C. angulata sperm, but the reciprocal cross was not possible. The fertilization and hatching success in the C. hongkongensis females x C. angulata males (HA) cross was lower than the two intraspecific crosses. Moreover, hybrid larvae had a slower growth rate than those from parental progenies due to genome incompatibility. However, the size of the spat and adult growth were greater than those of the two parental progeny, with obvious heterosis during the grow-out stage. The survival advantage of hybrids was examined at all times. The surprising finding was that all hybrids were completely fertile, meaning they could produce normal and functional gametes. Genetic analysis by molecular markers was applied to confirm that the HA spat were true hybrids. Our results revealed that the interspecific hybridization between C. hongkongensis and C. angulata is completely successful in one direction. Furthermore, hybrids are viable, fast growing and completely fertile, which provides a promising method for the genetic improvement of oysters as a new aquaculture stock in southern China.
Department[Zhang, Yuehuan; Zhang, Yang; Jun, Li; Yu, Ziniu] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou, Guangdong, Peoples R China; [Wang, Zhaoping] Ocean Univ China, Coll Fisheries, 5 Yushan Rd, Qingdao 266003, Peoples R China; [Yan, Xiwu] Dalian Ocean Univ, Coll Fisheries & Life Sci, Engn Res Ctr Shellfish Culture & Breeding Liaonin, Dalian, Peoples R China ; LMB
KeywordCrassostrea Hongkongensis Crassostrea Angulata Interspecific Hybridization Phenotypic Character Heterosis
Subject AreaFisheries
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15267
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, 5 Yushan Rd, Qingdao 266003, Peoples R China.; Yu, ZN (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, Yuehuan,Zhang, Yang,Jun, Li,et al. Phenotypic trait of Crassostrea hongkongensis female x C. angulata male hybrids in southern China[J]. AQUACULTURE RESEARCH,2016,47(11):3399-3409.
APA Zhang, Yuehuan.,Zhang, Yang.,Jun, Li.,Wang, Zhaoping.,Yan, Xiwu.,...&Yu, ZN .(2016).Phenotypic trait of Crassostrea hongkongensis female x C. angulata male hybrids in southern China.AQUACULTURE RESEARCH,47(11),3399-3409.
MLA Zhang, Yuehuan,et al."Phenotypic trait of Crassostrea hongkongensis female x C. angulata male hybrids in southern China".AQUACULTURE RESEARCH 47.11(2016):3399-3409.
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