Comparative transcriptome analysis reveals key pathways and hub genes for the resistance to Plasmodiophora brassicae in rapeseed

Rapeseed (Brassica napus L., AACC, 2n=38) is one of the most important oil crops around the world. With intensified rapeseed cultivation, the incidence and severity of clubroot infected by Plasmodiophora brassicae Wor. (P. brassicae) has increased very fast, which seriously impedes the development of rapeseed industry. Therefore, it is very important and timely to investigate the mechanisms and genes regulating clubroot resistance (CR) in rapeseed. In this study, comparative transcriptome analysis was carried out on two rapeseed accessions of R- (resistant) and S- (susceptible) line.This study not only provides valuable information for CR molecular mechanisms, but also has applied implications for CR breeding in rapeseed.

油菜（Brassica napus L.，AACC染色体组，2n=38）是全球最重要的油料作物之一。随着油菜种植规模化程度不断提升，由芸苔根肿菌（Plasmodiophora brassicae Wor.，简称P. brassicae）引起的根肿病发病率与危害程度快速攀升，严重制约了油菜产业的健康发展。因此，解析调控油菜根肿病抗性（clubroot resistance, CR）的分子机制与相关功能基因，具有重要的理论价值与现实紧迫性。本研究针对抗病（R-）与感病（S-）两个油菜株系开展了比较转录组分析。本研究不仅为解析根肿病抗性的分子机制提供了宝贵的研究数据，同时也为油菜根肿病抗性育种提供了重要的应用参考。