CBF Transcription Factors Involved in the Cold Response of (Naidong)

Overview

Journal PeerJ

Specialties Biology
Environmental Health
General Medicine

Date 2021 Sep 30

PMID 34589310

Citations 3

Authors

Menglong Fan

Rui Zhou

Qinghua Liu

Yingkun Sun

Affiliations

Soon will be listed here.

Abstract

CBFs belong to the ERF subfamily of the AP2 supergene family and often play an important role in the cold acclimation of temperate plants. However, the role of CBFs in (Naidong), the only population found in the temperate zones of China, remains unclear. It is very important to study the genetic composition of (Naidong) to adapt to low temperature for Camellia species. Using full-length transcriptome data, we identified four CjCBF genes that respond to cold stress and analyzed their evolutionary relationships, domains, and expression patterns. The phylogeny of CBFs of 19 angiosperms divided the genes into three categories, and the four CjCBFs belong to a small subcluster. The strong response of to cold treatment and its sustained high level of expression indicated that it plays an important role in the process of cold acclimation. A yeast two-hybrid assay revealed an interaction between , , and , and subcellular localization confirmed this finding. The expression of CjCBFs was tissue-specific: CBF1 was mainly expressed in leaves, and CBF3 was mainly expressed in stem. The responses of the four CjCBFs to drought and high temperature and the effect of light were also characterized. Our study provides new insight into the role of CBFs in the cold response in (Naidong).

Citing Articles

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