Transcription Factor Gene ERF11 Response to Osmotic Stress in Populus simonii×P.nigra Poplar

doi:10.7525/j.issn.1673-5102.2020.03.015

Abstract

Abstract: The ERF11 transcription factor gene(Potri.011G05700.1) cDNA is encoded with 243 amino acids in Populus simonii×P.nigra. ERF11 gene protein is an unstable pro-water protein, has no signal peptide, has no transmembrane ability, and contains AP2/ERF family conservative structure. The systematic evolution tree shows that PsnERF11 protein is close to Populus trichocarpa, Euphratica, Ricinus communis, Hevea brasiliensis, Jatropha curcas, Manihotesculenta, indicating that the genetic relationship is relatively close. The results of subcellular positioning show that ERF11 protein is located in the nucleus. ERF11 gene expression is tissue-specific and induced by coercion. Its relative expression level in the root was significantly higher than in the stem and leaf, and the gene was expressed higher under the pressure of salt and glycol. It is shown that ERF11 transcription factor genes may be associated with plant response to high salt and drought stress.

Key words: Populus simonii×P.nigra, transcription factors, gene expression, stress

CLC Number:

S722.3+6

LIU Yue, ZHAO Kai, Lü Guan-Bin, JIANG Ting-Bo, ZHOU Bo-Ru. Transcription Factor Gene ERF11 Response to Osmotic Stress in Populus simonii×P.nigra Poplar[J]. Bulletin of Botanical Research, 2020, 40(3): 433-440.

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