水产学报2011，Vol.35Issue(4)：509-514,6.DOI:10.3724/SP.J.1231.2011.16959
三疣梭子蟹快速生长品系核心种质有效群体含量
Effective population size of rapid growth line core collection in Portunus trituberculatus
摘要
Abstract
According to the formulas of effective population size, which were brought forward by Doyle and Talbot, we estimated the effective population size (Ne )for rapid growth line fundamental stock in Portunus trituberculatus. The real Ne was 213, which corresponded to a rate of inbreeding(F) of 0. 23％. Results indicated that F is relatively small, and inbreeding depression was in a low level, however, the cost of conservation was too high, it did not meet the conservation requirements. In light of breed conservation model in livestock and poultry, we investigated rapid growth line fundamental stock in P. trituberculatus on methods of selecting parents and ratio of dams and sires and the size of conservation population. We made the rules as follows: random selecting parents, the ratio of dams and sires is 1: l, and the number of dams and sires is 131, respectively. In this situation, genetic diversity of rapid growth line fundamental stock is preferably rich, which satisfies selective breeding, at the same time the cost of breed conservation is economical. This is only a theoretical model of breed conservation, and it needs the process of gradual improvement of breeding populations in the future.关键词
三疣梭子蟹/快速生长品系/有效群体含量/保种模式Key words
Portunus trituberculatus/ rapid growth line/ effective population size/ breed conservation model分类
农业科技引用本文复制引用
任宪云,高保全,刘萍,韩智科,李健..三疣梭子蟹快速生长品系核心种质有效群体含量[J].水产学报,2011,35(4):509-514,6.基金项目
国家"八六三"高技术研究发展计划(2006AA10A406) （2006AA10A406）
国家自然科学基金项目(30871933) （30871933）
青岛市科技计划项目(07-2-3-5-jch) （07-2-3-5-jch）
