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Gametogenesis From the Early History Life Stages of the Kumamoto Oyster Crassostrea sikamea and Their Breeding Potential Evaluation
Zhang, Yuehuan1; Qin, Yanping1; Ma, Lai2; Zhou, Zihua1; Xiao, Shu1; Ma, Haitao1; Pan, Ying3; Li, Jun1; Yu, Ziniu1
2019
Source PublicationFRONTIERS IN PHYSIOLOGY
ISSN1664-042X
Volume10Pages:524
AbstractThe Kumamoto oyster, Crassostrea sikamea, is native to Southeast Asia, including China, Japan and Korea, and is an important traditional wild fishery resource. Although this oyster's early gametogenesis was reported in Mexico, no related research was found on the breeding potential using early forming gametes. We re-examined the gametogenesis of C. sikamea during early life history in southern China and further divided it into three phases: sex differentiation (1 month old, shell height 2-3 mm), physiological maturity (2 months old, shell height 3-5 mm) and functional maturity (3 months old, shell height 9-12 mm). The breeding potential was evaluated using four sets of gametes from parent oysters of different ages (2, 3, 6, and 15 months old). The physiologically mature gametes were not suitable for artificial hatchery due to the low production of eggs, and yielding a high deformity rate of D larvae (95.47 +/- 1.25%) and heavy larval morality (90.23 +/- 1.84%) post-fertilization. However, progeny from functionally mature gametes grew significantly faster than those of other age groups, with no significant differences in fertilization, hatching level or survival of progeny among them. This study clearly demonstrates that the first batch of functionally mature gametes can develop normally and produce viable progeny, suggesting that artificial hatchery of C. sikamea is completely feasible using parent oysters from 3 months old and onward. Furthermore, this hatchery method can effectively shorten the breeding cycle and accelerate the breeding process.
DepartmentLMB
KeywordKumamoto oyster Crassostrea sikamea sex differentiation physiological maturity functional maturity breeding potential
DOI10.3389/fphys.2019.00524
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17846
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
2.Guangdong Prov Key Lab Appl Marine Biol, Guangzhou, Guangdong, Peoples R China
3.Beihai Southern Ocean Ecol Culture Ltd, Beihai, Peoples R China
4.Guangxi Univ, Coll Anim Sci & Technol, Nanning, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yuehuan,Qin, Yanping,Ma, Lai,et al. Gametogenesis From the Early History Life Stages of the Kumamoto Oyster Crassostrea sikamea and Their Breeding Potential Evaluation[J]. FRONTIERS IN PHYSIOLOGY,2019,10:524.
APA Zhang, Yuehuan.,Qin, Yanping.,Ma, Lai.,Zhou, Zihua.,Xiao, Shu.,...&Yu, Ziniu.(2019).Gametogenesis From the Early History Life Stages of the Kumamoto Oyster Crassostrea sikamea and Their Breeding Potential Evaluation.FRONTIERS IN PHYSIOLOGY,10,524.
MLA Zhang, Yuehuan,et al."Gametogenesis From the Early History Life Stages of the Kumamoto Oyster Crassostrea sikamea and Their Breeding Potential Evaluation".FRONTIERS IN PHYSIOLOGY 10(2019):524.
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