您的位置:首页>论文发表>2020
2020

喻子牛研究团队在《Aquaculture》发表论文

副标题:

时间:2020-06-16  作者:LMB  来源:文本大小:【 |  | 】  【打印

题目: Phenotypic traits of two boring giant clam (Tridacna crocea) populations and their reciprocal hybrids in the South China Sea

作者: Yuehuan Zhang, Zihua, Zhou, Yanpin Qin, Xingyou Li, Haitao Ma, Jinkuan Wei, Yinyin Zhou, Shu Xiao, Zhiming Xiang, Noor, Z., Jun Li, Ziniu Yu

刊物: Aquaculture

年卷期页: 2020, 519: 734890

摘要The boring giant clam, Tridacna crocea, is distributed along coasts in the South China Sea, and has formed several geographic populations. These populations represent potentially different genetic resources for aquaculture, and the evaluation of their genetic and production characteristics is important. To determine these performance characteristics, complete diallel crosses between two geographical populations with about 600 km distance, Zhaoshu Island and Huangyan Island, were conducted using pooled gametes at an experimental station in Sanya, Hainan Island Province. Two intra-population crosses (ZZ and HH) and two reciprocal inter-population crosses (ZH and HZ) were carried out successfully three times. High fertilization rates and D larvae rate were observed in all the experimental groups, suggesting that there was no sperm-egg recognition barrier between the two geographic populations. Reciprocal hybrids had a higher survival rate than the pure populations, but with the exception of metamorphosis rate there were no significant differences between the inter- and intra-population crosses. Growth heterosis was evident in both the spat and adult stages, and was mainly influenced by egg origin and mating strategy in the adult stage. In view of the growth differences between the two pure populations' progeny, the Huangyan Island population's progeny was more suitable for giant clam aquaculture than the Zhaoshu Island population's progeny. Our results demonstrate that crossbreeding between the Huangyan Island and Zhaoshu Island populations of boring giant clams can produce considerable heterosis, which has promising prospects for application in the giant clam aquaculture industry in the South China Sea.

相关附件
相关文档
Copyright    中国科学院热带海洋生物资源与生态重点实验室    版权所有
地址:广东省广州市新港西路164号  邮编:510301
电话:020-89023101  传真:86-20-84451672  Email:liujuan@scsio.ac.cn