Atypical DNA methylation, sRNA-size distribution, and female gametogenesis in Utricularia gibba.

ABSTRACT: The most studied DNA methylation pathway in plants is the RNA Directed DNA Methylation (RdDM), a conserved mechanism that involves the role of noncoding RNAs to control the expansion of the noncoding genome. Genome-wide DNA methylation levels have been reported to correlate with genome size. However, little is known about the catalog of noncoding RNAs and the impact on DNA methylation in small plant genomes with reduced noncoding regions. Because of the small length of intergenic regions in the compact genome of the carnivorous plant Utricularia gibba, we investigated its repertoire of noncoding RNA and DNA methylation landscape. Here, we report that, compared to other angiosperms, U. gibba has an unusual distribution of small RNAs and reduced global DNA methylation levels. DNA methylation

SUBMITTER: Cervantes-Perez SA 

PROVIDER: S-EPMC8333044 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature