中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 深凹壳型香港牡蛎选育群体生长性状的遗传参数估计 水产学报 2020 (1) 33-42
Position: Home > Articles > Estimates of genetic parameters of growth-related traits for the selective breeding of deep-cupped shell Crassostrea hongkongensis Journal of Fisheries of China 2020 (1) 33-42

深凹壳型香港牡蛎选育群体生长性状的遗传参数估计

作  者：
莫日馆;肖述;秦艳平;张跃环;马海涛;喻子牛
单  位：
中国科学院大学;中国科学院南海海洋研究所中国科学院热带海洋生物资源与生态重点实验室广东省应用海洋生物重点实验室
关键词：
香港牡蛎;深凹壳型;壳型指数D;群体选育;遗传参数
摘  要：
为了培育壳型和生长性状优良的深凹壳型香港牡蛎新品系,以广东台山镇海湾野生香港牡蛎天然采苗的2龄养殖群体为基础群体,以壳型指数D为指标,按照10%留种率和1.755选择强度,利用截头法进行深凹壳型香港牡蛎的群体选育;分析了幼虫期、中间培养期、养成后期的选择反应、遗传获得和现实遗传力等遗传参数。结果发现,选择组的壳高和壳型指数D均大于对照组,遗传参数估算值随着个体的增大而增加。幼虫期,壳高的平均选择反应、平均遗传获得、平均现实遗传力分别为0.363±0.167、1.678%±0.416%、0.207±0.095,中间培养期分别0.639±0.115、7.618%±2.666%、0.364±0.065,养成后期分别为0.668±0.179、8.861%±3.072%、0.381±0.102。养成后期,壳型指数D的平均选择反应、平均遗传获得、平均现实遗传力分别为0.748±0.066、9.090%±0.565%、0.426±0.038。研究结果为培育深凹壳型、生长性能良好的香港牡蛎优良品种提供了实验依据和理论基础。
译  名：
Estimates of genetic parameters of growth-related traits for the selective breeding of deep-cupped shell Crassostrea hongkongensis
作  者：
MO Riguan;XIAO Shu;QIN Yanping;ZHANG Yuehuan;MA Haitao;YU Ziniu;Key Laboratory of Tropical Marine Biological Resources and Ecology, South China Sea Institute of Oceanology,Chinese Academy of Sciences, Guangdong Key Laboratory of Applied Marine Biology;University of Chinese Academy of Sciences;
关键词：
Crassostrea hongkongensis;;deep-cupped shell;;index of shell depth;;mass selection;;genetic parameters
摘  要：
In order to breed a new strain with deep-cupped shell of Crassostrea hongkongensis and better growth traits, a breeding program of truncation selection was initiated based on the 2-year-old culture population of wild C. hongkongensis collected naturally from Taishan Town Bay, Guangdong Province. The index of shell depth was used as an indicator, with 10% retention rate and 1.755 selection strength. The genetic parameters including selection reaction, genetic gain and realized heritability in larval stage, intermediate cultivation stage and later grow-out stage were estimated. The results showed that the shell height and index of shell depth in selected group were higher than those in control group, and the genetic parameters increased with the growth of individuals,showing a favorable genetic improvement potential. The average selective reaction, genetic gain and realized heritability of shell height at larval stage was 0.363±0.167, 1.678%±0.416% and 0.207±0.095, respectively; at intermediate cultivation stage was 0.639±0.115, 7.618%±2.666%, and 0.364±0.065, respectively; and later growout stage was 0.668±0.179, 8.861%±3.072% and 0.381±0.102, respectively. At the later grow-out stage, the average selective reaction, genetic gain and realized heritability of index of shell depth was 0.748±0.066,9.090%±0.565%, and 0.426±0.038, respectively. The research provided useful data for the breeding of a new strain with deep-cupped shell and good growth traits in C. hongkongensis.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46