Chilling stress drives organ-specific transcriptional cascades and dampens diurnal oscillation in tomato.

ABSTRACT: Improving chilling tolerance in cold-sensitive crops, e.g. tomato, requires knowledge of the early molecular response to low temperature in these under-studied species. To elucidate early responding processes and regulators, we captured the transcriptional response at 30 minutes and 3 hours in the shoots and at 3 hours in the roots of tomato post-chilling from 24°C to 4°C. We used a pre-treatment control and a concurrent ambient temperature control to reveal that majority of the differential expression between cold and ambient conditions is due to severely compressed oscillation of a large set of diurnally regulated genes in both the shoots and roots. This compression happens within 30 minutes of chilling, lasts for the duration of cold treatment, and is relieved within 3 hours of return t

SUBMITTER: Agarwal T 

PROVIDER: S-EPMC10410299 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature