DELAY OF GERMINATION1 (DOG1) regulates both seed dormancy and flowering time through microRNA pathways.

ABSTRACT: Seed germination and flowering, two critical developmental transitions in plant life cycles, are coordinately regulated by genetic and environmental factors to match plant establishment and reproduction to seasonal cues. The DELAY OF GERMINATION1 (DOG1) gene is involved in regulating seed dormancy in response to temperature and has also been associated genetically with pleiotropic flowering phenotypes across diverse Arabidopsis thaliana accessions and locations. Here we show that DOG1 can regulate seed dormancy and flowering times in lettuce (Lactuca sativa, Ls) and Arabidopsis through an influence on levels of microRNAs (miRNAs) miR156 and miR172. In lettuce, suppression of LsDOG1 expression enabled seed germination at high temperature and promoted early flowering in association with redu

SUBMITTER: Huo H 

PROVIDER: S-EPMC4839450 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature