Three Rice NAC Transcription Factors Heteromerize and Are Associated with Seed Size.

ABSTRACT: NACs are plant-specific transcription factors (TFs) involved in multiple aspects of development and stress. In rice, three NAC TF encoding genes, namely ONAC020, ONAC026, and ONAC023 express specifically during seed development, at extremely high levels. They exhibit significantly strong association with seed size/weight with the sequence variations located in the upstream regulatory region. Concomitantly, their expression pattern/levels during seed development vary amongst different accessions with variation in seed size. The alterations in the promoter sequences of the three genes, amongst the five rice accessions, correlate with the expression levels to a certain extent only. In terms of transcriptional properties, the three NAC TFs can activate and/or suppress downstream

SUBMITTER: Mathew IE 

PROVIDER: S-EPMC5098391 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature