文献类型：期刊文献

中文题名：欧洲黑杨优质核心种质库的初步构建

英文题名：A Preliminary Study on Construction of High-Quality Core Collection of Populus nigra

作者：曾宪君[1] 李丹[1] 胡彦鹏[2] 黄秦军[1] 苏晓华[1]

第一作者：曾宪君

机构：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室;[2]隆化县国营林场管理局

年份：2014

卷号：50

期号：9

起止页码：51-58

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家"十二五"科技支撑计划课题"超高产优质杨树速生材新品种选育"(2012BAD01B03)

语种：中文

中文关键词：欧洲黑杨;优质核心种质;抽样方法;遗传多样性

外文关键词：Populus nigra;high-quality core collection;sampling method;genetic diversity

分类号：S722.8

摘要：对159份欧洲黑杨种质资源的生长、育种值、材性、养分利用率和水分利用率等13个性状进行分析,采用13种表型选优的抽样方法构建欧洲黑杨优质核心种质库。表型值评价表明:当抽样群体比例达到21.4%以上即能满足构建核心种质要求,而只有抽样群体比例达到30.2%以上SSR分子遗传多样性才能满足构建核心种质要求。最终确定的欧洲黑杨优质核心种质库包含48份种质资源,占原群体的30.2%;与原群体相比,均值和方差不存在显著差异,极差符合率和变异系数变化率分别为97.07%和89.72%;优质核心种质库的有效等位基因数、Nei’s遗传多样性系数和Shannon’s信息指数与原群体之间没有显著差异,保持了原群体的遗传多样性。
In this study,we analyzed 13 traits of 159 Populus nigra germplasm such as growth,breeding value,material properties,efficiency of water use efficiency and efficiency of nutrient utilization. A high-quality core collection of P. nigra was constructed by utilizing 13 kinds of sampling methods of phenotypic selection. Phenotypic value evaluation showed that the sampling rate reached to more than 21. 4% can meet the requirement of building core collection. However,the proportion of the sample population over 30. 2% was required for building the core collection in terms of SSR molecular genetic diversity. Ultimately,the determined high-quality core collection of P. nigra contained 48 germplasm resources,accounting for 30. 2% of the original germplasm. Compared with the original germplasm,there were no differences in the aspects of the mean and the variance,and the coincidence rate of range and the changeable rate of coefficient of variation were 97. 07%and 89. 72%. The high-quality core collection was no significantly different from the original group in the aspects of the effective number of alleles,Nei’s genetic diversity coefficient and Shannon’s information index,suggesting that the high-quality core collection should maintain the genetic diversity of the original group.