中国水产科学2023，Vol.30Issue(11)：1293-1300,8.DOI:10.12264/JFSC2023-0245
马氏珠母贝黑壳色选育系F5和对照群体生产性状的比较
Comparison of production traits between the black shell color breeding line F5 and the control population of Pinctada fucata martensii
摘要
Abstract
We developed a black shell color line(BF)based on the color of radiating ribbed stripes in shell prismatic layers and growth characteristics by employing family selection and population selection methods.We aimed to explore the production performance of the selected lines by comparing the performance indicators of the black shell color line F5(BF5)and the control group(CG),including fertilization rate,hatching rate,metamorphosis rate,growth traits,tolerance to low temperature and high salt content,and pearl production traits.The fertilization,hatching,and survival rates on the 10th and 20th day of larvae and the metamorphosis rate of the BF5 population were higher than those of the CG population,but the difference was not significant(P>0.05).Following 20 days post hatching,the average shell length of BF5 group was significantly higher than that of the CG group(P<0.05),and the average shell length of the BF5 group was 17.47%,21.34%,and 20.28%higher than that of CG group at 240,330,and 600 days after hatching,respectively.Following 30 days of exposure to the heat stress caused at 33℃,the survival rate of BF5 and CG groups was 84.4%and 63.9%,respectively,and this difference was significant(P<0.05).Following 30 days of exposure to 16‰ low salt stress,the survival rate of BF5 and CG groups was 69.2%and 56.7%,respectively,with significant differences being observed between the two groups(P<0.05).From 150 days after nuclear implantation to the end of the beading period(270 days),the survival rate of BF5 was significantly higher than that of the CG population(P<0.05).The survival rate of BF5 was 18.92%higher than that of CG.There was no significant difference between the commercial bead rate and the high-quality bead rate of BF5 and CG(P>0.05).The nucleation retention rate and nacre thickness of BF5 were significantly higher than CG(P<0.05),and the increase rates were 18.97%and 22.61%,respectively.Our results indicated that BF5 had better pearl production traits.The findings of this study provide basic data for breeding and industrial application of Pinctada fucata martensii.关键词
马氏珠母贝/黑壳色选育系/生产性能/育珠性能Key words
Pinctada fucata martensii/black shell color line/production performance/pearling production performance分类
农业科技引用本文复制引用
陈琨,张林浩,姚子航,廖永山,邓岳文,王庆恒..马氏珠母贝黑壳色选育系F5和对照群体生产性状的比较[J].中国水产科学,2023,30(11):1293-1300,8.基金项目
国家贝类产业技术体系项目(CARS-49) （CARS-49）
广东省普通高校重点领域专项(2020ZDZX1045) （2020ZDZX1045）
广东省现代农业产业技术体系贝藻类产业创新团队项目(KJ146). （KJ146）
