Variation in abundance of predicted resistance genes in the Brassica oleracea pangenome

Philipp E. Bayer, Agnieszka A. Golicz, Soodeh Tirnaz, Chon Kit Kenneth Chan, David Edwards, Jacqueline Batley

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Brassica oleracea is an important agricultural species encompassing many vegetable crops including cabbage, cauliflower, broccoli and kale; however, it can be susceptible to a variety of fungal diseases such as clubroot, blackleg, leaf spot and downy mildew. Resistance to these diseases is meditated by specific disease resistance genes analogs (RGAs) which are differently distributed across B. oleracea lines. The sequenced reference cultivar does not contain all B. oleracea genes due to gene presence/absence variation between individuals, which makes it necessary to search for RGA candidates in the B. oleracea pangenome. Here we present a comparative analysis of RGA candidates in the pangenome of B. oleracea. We show that the presence of RGA candidates differs between lines and suggests that in B. oleracea, SNPs and presence/absence variation drive RGA diversity using separate mechanisms. We identified 59 RGA candidates linked to Sclerotinia, clubroot, and Fusarium wilt resistance QTL, and these findings have implications for crop breeding in B. oleracea, which may also be applicable in other crops species.

Original languageEnglish
Pages (from-to)789-800
Number of pages12
JournalPlant Biotechnology Journal
Early online date31 May 2018
DOIs
Publication statusPublished - Apr 2019

Fingerprint Dive into the research topics of 'Variation in abundance of predicted resistance genes in the Brassica oleracea pangenome'. Together they form a unique fingerprint.

  • Projects

    Cite this