A LINKAGE MAP OF SUGAR-BEET (BETA-VULGARIS L)

被引：80

作者：

PILLEN, K

STEINRUCKEN, G

WRICKE, G

HERRMANN, RG

JUNG, C

机构：

[1] A DIECKMANN HEIMBURG,SAATZUCHT SULBECK,W-3065 NIENSTADT,GERMANY

[2] UNIV HANOVER,INST APPL GENET,W-3000 HANNOVER 21,GERMANY

来源：

THEORETICAL AND APPLIED GENETICS | 1992年 / 84卷 / 1-2期

关键词：

SUGAR BEET; BETA-VULGARIS; RFLP MARKERS; LINKAGE MAP; DISTORTED SEGREGATION;

D O I：

10.1007/BF00223992

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

We have established a first linkage map for beets based on RFLP, isozyme and morphological markers. The population studied consisted of 96 F2 individuals derived from an intraspecific cross. As was expected for outbreeding species, a relatively high degree of polymorphism was found within sugar beet; 47% of the DNA markers were polymorphic for the chosen population. The map consists of 115 independent chromosomal loci designated by 108 genomic DNA probes, 6 isozyme and one morphological marker. The loci cover 789 cM with an average spacing of 6.9 cM. They are dispersed over nine linkage groups corresponding to the haploid chromosome number of Beta species. Eighteen markers (15.4%) showed distorted segregation which, in most instances, can be explained by gametic selection of linked lethal loci. The application of the linkage map in sugar beet breeding is discussed.

引用

页码：129 / 135

页数：7

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