Ontology highlight
ABSTRACT:
SUBMITTER: Riddle NC
PROVIDER: S-EPMC1462236 | biostudies-other | 2002 Sep
REPOSITORIES: biostudies-other
Riddle Nicole C NC Richards Eric J EJ
Genetics 20020901 1
We explore the extent and sources of epigenetic variation in cytosine methylation in natural accessions of the flowering plant, Arabidopsis thaliana, by focusing on the methylation of the major rRNA gene repeats at the two nucleolus organizer regions (NOR). Our findings indicate that natural variation in NOR methylation results from a combination of genetic and epigenetic mechanisms. Genetic variation in rRNA gene copy number and trans-acting modifier loci account for some of the natural variati ...[more]