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Scn coding blue link3/29/2024 ![]() In addition, the miRNA paralogs gma-miR5770a and gma-miR5770b showed hypermethylation and hypomethylation in NIL-S and NIL-R, respectively. ![]() Interestingly, gma-miR5032, gma-miR5043, gma-miR1520b, and gma-2107-ch16 showed opposite methylation patterns in the isogenic lines. In the susceptible isogenic line (NIL-S), 82 differentially methylated miRNAs were identified in response to SCN infection whereas, in the resistant isogenic line (NIL-R), only 16 differentially methylated miRNAs were identified. miRNA genes with significant changes in DNA methylation levels in the promoter and primary transcript-coding regions were detected in both lines. Differences in global DNA methylation levels over miRNA genes in response to SCN infection were observed between the isogenic lines. Here, we analyzed DNA methylation changes of miRNA genes using a pair of soybean ( Glycine max) near-isogenic lines (NILs) differing in their response to soybean cyst nematode (SCN Heterodera glycines). However, the role of DNA methylation in regulating the expression of microRNA (miRNA) genes remains largely unexplored. DNA methylation is a widespread epigenetic mark that affects gene expression and transposon mobility during plant development and stress responses.
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