Mitochondrial RNase H1 activity regulates R-loop homeostasis to maintain genome integrity and enable early embryogenesis in Arabidopsis.

Plant mitochondrial genomes undergo frequent homologous recombination (HR). Ectopic HR activity is inhibited by the HR surveillance pathway, but the underlying regulatory mechanism is unclear. Here, we show that the mitochondrial RNase H1 AtRNH1B impairs the formation of RNA:DNA hybrids (R-loops) an...

Full description

Bibliographic Details
Main Authors: Lingling Cheng, Wenjie Wang, Yao Yao, Qianwen Sun
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-08-01
Series:PLoS Biology
Online Access:https://doi.org/10.1371/journal.pbio.3001357