文献类型：期刊文献

中文题名：白皮松交配系统及其种内遗传多样性分量比的研究

英文题名：Mating System and Genetic Diversity Proportion in Pinus bungeana

作者：李斌[1] 顾万春[1]

第一作者：李斌

机构：[1]中国林业科学研究院林业研究所

年份：2004

卷号：17

期号：1

起止页码：19-25

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家十五攻关项目"林木种质保存技术创新与利用研究"(2001BA511B10);国家基础性工作项目"林木种质资源收集保存"(2001;2002;2003)

语种：中文

中文关键词：白皮松;交配系统;遗传多样性分量比;遗传分化系数;异交率

外文关键词：Pinus bungeana ;outcrossing rate;genetic differentiation coefficient;genetic diversity proportion

分类号：S791.243

摘要：应用同工酶淀粉凝胶技术分析了白皮松天然群体的交配系统,结果表明白皮松天然群体的多位点异交率为0 451～0 522,在松属中处于较低水平,这与白皮松天然群体较低的杂合度和很弱的基因流结果吻合,进一步讨论了导致白皮松异交率低的原因。白皮松群体内家系间存在明显的遗传分化,其半同胞家系分化系数为0 322,高于群体间的遗传分化水平。群体/家系/子代个体三者间的遗传多样性分量比为DAP∶DAF∶DIF≈1∶2∶4。
The mating system of natural population in Pinus bungeana was analyzed by applying isozyme starch gel technology, and the outcrossing rates of multilocus was 0.451NFA480.522, which standed at lower level compared with other pines and which was accordant to its lower gene flow and heterozygosity. The reasons leading to lower outcrossing rate were discussed. The genetic differentiation coefficient of family reached to 0.322, which was higher than that of population. The genetic variation among natural populations, half-sib families, and progeny individuals within half-sib families counted up 0.133, 0.279 and 0.588, respectively. The genetic diversity proportion of the three levels equaled approximately 1∶2∶4. The results provided an important basis for tree breeding and gene conservation in Pinus bungeana .