Variation in shade-induced flowering in Arabidopsis thaliana results from FLOWERING LOCUS T allelic variation.

ABSTRACT: Plants have evolved developmental mechanisms to ensure reproduction when in sub-optimal local environments. The shade-avoidance syndrome is one such mechanism that causes plants to elongate and accelerate flowering. Plants sense shade via the decreased red:far-red (R:FR) ratio that occurs in shade. We explored natural variation in flowering behavior caused by a decrease in the R:FR ratio of Arabidopsis thaliana accessions. A survey of accessions revealed that most exhibit a vigorous rapid-flowering response in a FR-enriched environment. However, a subset of accessions appeared to be compromised in the accelerated-flowering component of the shade-avoidance response. The genetic basis of the muted response to FR enrichment was studied in three accessions (Fl-1, Hau-0, and Mir-0). For all thr

SUBMITTER: Schwartz CJ 

PROVIDER: S-EPMC5695581 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature