Improved cold tolerance in switchgrass by a novel CCCH-type zinc finger transcription factor gene, PvC3H72, associated with ICE1-CBF-COR regulon and ABA-responsive genes.

ABSTRACT:

Background

Switchgrass (Panicum virgatum) is a warm-season perennial grass. Improving its cold tolerance is important for its sustainable production in cooler regions. Through genome-wide bioinformatic analysis of switchgrass Zinc finger-CCCH genes (PvC3Hs), we found that several PvC3Hs, including PvC3H72, might play regulatory roles in plant cold tolerance. The objectives of this study were to characterize PvC3H72 using reverse genetics approach and to understand its functional role in cold signal transduction and cold tolerance in switchgrass.

Results

PvC3H72 is an intronless gene encoding a transcriptional activation factor. The expression of PvC3H72 was rapidly and highly induced by cold stress. Transgenic sw

SUBMITTER: Xie Z 

PROVIDER: S-EPMC6753611 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature