Effect of phyB and phyC loss-of-function mutations on the wheat transcriptome under short and long day photoperiods.

ABSTRACT:

Background

Photoperiod signals provide important cues by which plants regulate their growth and development in response to predictable seasonal changes. Phytochromes, a family of red and far-red light receptors, play critical roles in regulating flowering time in response to changing photoperiods. A previous study showed that loss-of-function mutations in either PHYB or PHYC result in large delays in heading time and in the differential regulation of a large number of genes in wheat plants grown in an inductive long day (LD) photoperiod.

Results

We found that under non-inductive short-day (SD) photoperiods, phyB-null and phyC-null mutants were taller, had a reduced number of tillers, longer and wider leaves, and headed later than wild-type (WT) plants. The delay in heading b

SUBMITTER: Kippes N 

PROVIDER: S-EPMC7325275 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature