Differences in the intraspecies copy number variation of Arabidopsis thaliana conserved and nonconserved miRNA genes.

ABSTRACT: MicroRNAs (miRNAs) regulate gene expression by RNA interference mechanism. In plants, miRNA genes (MIRs) which are grouped into conserved families, i.e. they are present among the different plant taxa, are involved in the regulation of many developmental and physiological processes. The roles of the nonconserved MIRs-which are MIRs restricted to one plant family, genus, or even species-are less recognized; however, many of them participate in the responses to biotic and abiotic stresses. Both over- and underproduction of miRNAs may influence various biological processes. Consequently, maintaining intracellular miRNA homeostasis seems to be crucial for the organism. Deletions and duplications in the genomic sequence may alter gene dosage and/or activity. We evaluated the extent of copy numb

SUBMITTER: Samelak-Czajka A 

PROVIDER: S-EPMC10085913 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature