Tissue-specific transcriptomic analysis reveals the molecular mechanisms responsive to cold stress in Poa crymophila, and development of EST-SSR markers linked to cold tolerance candidate genes.

ABSTRACT:

Background

Poa crymophila is a perennial, cold-tolerant, native grass species, widely distributed in the Qinghai-Tibet Plateau. However, the tissue-specific regulatory mechanisms and key regulatory genes underlying its cold tolerance remain poorly characterized. Therefore, in this study, based on the screening and evaluation of cold tolerance of four Poa species, the cold tolerance mechanism of P. crymophila's roots, stems, and leaves and its cold tolerance candidate genes were investigated through physiological and transcriptomic analyses.

Results

Results of the present study suggested that the cold tolerance of the four Poa species was in the following order: P. crymophila > P. botryoides > P. pratensis var. anceps > P. pratensis. Cold stress significantly changed the phys

SUBMITTER: Tang L 

PROVIDER: S-EPMC11921722 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature