AUTHOR=Li Wei , Lu Junxing , Yang Chenghuizi , Xia Shitou 

TITLE=Identification of receptor-like proteins induced by Sclerotinia sclerotiorum in Brassica napus

JOURNAL=Frontiers in Plant Science

VOLUME=13

YEAR=2022

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2022.944763

DOI=10.3389/fpls.2022.944763

ISSN=1664-462X

ABSTRACT=<p>Heightening the resistance of plants to microbial infection is a widely concerned issue, especially for economical crops. Receptor-like proteins (RLPs), typically with tandem leucine-rich repeats (LRRs) domain, play a crucial role in mediating immune activation, being an indispensable constituent in the first layer of defense. Based on an analysis of orthologs among <italic>Brassica rapa, Brassica oleracea</italic>, and <italic>Brassica napus</italic> using <italic>Arabidopsis thaliana</italic> RLPs as a reference framework, we found that compared to <italic>A. thaliana</italic>, there were some obvious evolutionary diversities of RLPs among the three <italic>Brassicaceae</italic> species. <italic>BnRLP</italic> encoding genes were unevenly distributed on chromosomes, mainly on chrA01, chrA04, chrC03, chrC04, and chrC06. The orthologs of five <italic>At</italic>RLPs (<italic>At</italic>RLP3, <italic>At</italic>RLP10, <italic>At</italic>RLP17, <italic>At</italic>RLP44, and <italic>At</italic>RLP51) were highly conserved, but retrenchment and functional centralization occurred in <italic>Brassicaceae</italic> RLPs during evolution. The RLP proteins were clustered into 13 subgroups. Ten <italic>BnRLPs</italic> presented expression specificity between R and S when elicited by <italic>Sclerotinia sclerotiorum</italic>, which might be fabulous candidates for <italic>S. sclerotiorum</italic> resistance research.</p>