ECOGEOGRAPHICAL DISTRIBUTION AND DIFFERENTIAL ADAPTEDNESS OF MULTILOCUS ALLELIC ASSOCIATIONS IN SPANISH AVENA-SATIVA L

被引：17

作者：

DELAVEGA, M ^{[1
]}

SAENZDEMIERA, LE ^{[1
]}

ALLARD, RW ^{[1
]}

机构：

[1] UNIV CALIF DAVIS, DEPT GENET, DAVIS, CA 95616 USA

来源：

THEORETICAL AND APPLIED GENETICS | 1994年 / 88卷 / 01期

关键词：

AVENA SATIVA; GENETIC VARIABILITY; MULTIVARIATE ANALYSIS; MULTILOCUS ASSOCIATIONS; GENETIC RESOURCES;

D O I：

10.1007/BF00222394

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

We determined the nine-locus isozyme genotype of 267 landrace accessions of Avena sativa from 31 provinces of Spain. Our results establish that level of genetic variability is usually high both within and among accessions of this heavily self-fertilizing hexaploid grass and that multilocus genetic structure differs in various ecogeographical regions of Spain. We concluded that selection favoring different multilocus genotypes in different environments was the main integrating force that shaped the internal genetic structure of local populations as well as the overall adaptive landscape of A. sativa in Spain. Implications in genetic resource conservation and utilization are discussed.

引用

页码：56 / 64

页数：9

共 20 条

[1]

ALLARD RW, 1975, GENETICS, V79, P115

[2] GENETIC CHANGES ASSOCIATED WITH THE EVOLUTION OF ADAPTEDNESS IN CULTIVATED PLANTS AND THEIR WILD PROGENITORS [J].