Fine mapping and identification of the downy mildew resistance gene BoDMR2 in Cabbage (Brassica oleracea L. var. capitata).

ABSTRACT:

Background

Cabbage (Brassica oleracea L. var. capitata) is an important crop within the Brassica oleracea species and is extensively cultivated worldwide. In recent years, outbreaks of downy mildew caused by Hyaloperonospora parasitica have resulted in substantial losses in cabbage production. Despite this, there have been limited studies on genes associated with resistance to downy mildew in cabbage.

Results

This study identified sister lines exhibiting significant differences in disease resistance and susceptibility. Using bulked segregant analysis followed by sequencing (BSA-seq) and linkage analysis, the cabbage resistance locus BoDMR2 was accurately mapped to an approximately 300 kb interval on chromosome 7. Among the candidate genes identified, several single nucleotid

SUBMITTER: Wu Y 

PROVIDER: S-EPMC11491021 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature