SPATIAL GENETIC SUBSTRUCTURE WITHIN NATURAL-POPULATIONS OF JACK PINE (PINUS-BANKSIANA)

被引:41
作者
XIE, CY
KNOWLES, P
机构
来源
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE | 1991年 / 69卷 / 03期
关键词
JACK PINE; PINUS-BANKSIANA; GENETIC SUBSTRUCTURE; ALLOZYME; SPATIAL AUTOCORRELATION ANALYSIS;
D O I
10.1139/b91-074
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Spatial autocorrelation analysis was used to investigate the geographic distribution of allozyme genotypes within three natural populations of jack pine (Pinus banksiana Lamb.). Results indicate that genetic substructuring within these populations is very weak and the extent differs among populations. These results are in good agreement with those inferred from mating-system studies. Factors such as the species' predominantly outbreeding system, high mortality of selfs and inbreds prior to reproduction, long-distance pollen dispersal, and the absence of strong microhabitat selection may be responsible for the observed weak genetic substructuring.
引用
收藏
页码:547 / 551
页数:5
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