Resynthesizing Brassica napus with race specific resistance genes and race non-specific QTLs to multiple races of Plasmodiophora brassicae.

ABSTRACT: Clubroot disease in canola (Brassica napus) continues to spread across the Canadian prairies. Growing resistant cultivars is considered the most economical means of controlling the disease. However, sources of resistance to clubroot in B. napus are very limited. In this study, we conducted interspecific crosses using a B. rapa line (T19) carrying race-specific resistance genes and two B. oleracea lines, ECD11 and JL04, carrying race non-specific QTLs. Employing embryo rescue and conventional breeding methods, we successfully resynthesized a total of eight B. napus lines, with four derived from T19 × ECD11 and four from T19 × JL04. Additionally, four semi-resynthesized lines were developed through crosses with a canola line (DH16516). Testing for resistance to eight significant races of Pla

SUBMITTER: Masud Karim M 

PROVIDER: S-EPMC11199665 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature