期刊论文

STUDIES ON OPEN NUCLEUS BREEDING SYSTEM Ⅲ.ESTIMATING CROSSBREEDING PARAMETERS IN ONBS POPULATIONS

中文

湖南农业大学学报(自然科学版)

1007-1032

1997

023

6

565-569

湖南省教委资助

本校为第一机构

在开放核心群育种体系的杂交方案中，选择和迁移遗传学效应是影响杂交系数估计的两个主要的动态因素。本研究结果表明，在群体均值模型基础上采用加权最小二乘方法可以有产地估计有关的杂交参数。体系中群体直接遗传效应生往随选择和迁移的影响而发生较大的定向变异，但母本效应和杂种优势的变异较小。

Crossbreeding parameters were estimated for crosses from either simulated or practical open nucleus populations through weighted least squares method. The simulation indicated an dramatical increase in direct genetic effects of populations, but slight variations in both maternal effects and individual heteroses. Estimates from practical hybridization supported the simulated results, revealing that changes in direct genetic effects can ...