Dynamic changes in transposable element and gene methylation in mulberry (Morus notabilis) in response to Botrytis cinerea.

ABSTRACT: DNA methylation has been proposed to regulate plant stress resistance. However, the dynamic changes in DNA methylation in woody plants and their correlations with pathogenic responses are not fully understood. Here, we present single-base maps of the DNA methylomes of mulberry (Morus notabilis) leaves that were subjected to a mock treatment or inoculation with Botrytis cinerea. Compared with the former, the latter showed decreased mCG and mCHG levels and increased mCHH levels. DNA methylation inhibitors reduced resistance gene methylation levels and enhanced mulberry resistance, suggesting that the hypomethylation of resistance genes affects mulberry resistance to B. cinerea. Virus-induced gene silencing of MnMET1 enhanced the expression of mulberry-resistance genes, thereby increasing the

SUBMITTER: Xin Y 

PROVIDER: S-EPMC8245511 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature