High-density SNP-based genetic map development and linkage disequilibrium assessment in Brassica napus L.

ABSTRACT:

Background

High density genetic maps built with SNP markers that are polymorphic in various genetic backgrounds are very useful for studying the genetics of agronomical traits as well as genome organization and evolution. Simultaneous dense SNP genotyping of segregating populations and variety collections was applied to oilseed rape (Brassica napus L.) to obtain a high density genetic map for this species and to study the linkage disequilibrium pattern.

Results

We developed an integrated genetic map for oilseed rape by high throughput SNP genotyping of four segregating doubled haploid populations. A very high level of collinearity was observed between the four individual maps and a large number of markers (>59%) was common to more than two maps. The precise integrated map co

SUBMITTER: Delourme R 

PROVIDER: S-EPMC3600037 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature