Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (5): 984-994.DOI: 10.3969/j.issn.1004-1524.2022.05.13

• Horticultural Science • Previous Articles     Next Articles

Genome-wide identification and bioinformatics analysis of BES1 transcription factor family in mango

XIA Yuqi1,2(), SUN Yu1,2, LIU Zhixin2, SUN Ruiqing1,2, YANG Nan1,2, PU Jinji2,3, ZHANG He1,2,3,*()   

  1. 1. College of Plant Protection, College of Tropical Crops, Hainan University, Haikou 570228, China
    2. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Integrated Pest Management on Tropical Grops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
    3. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
  • Received:2021-03-15 Online:2022-05-25 Published:2022-06-06
  • Contact: ZHANG He

Abstract:

BES1/BZR1 is a unique transcription factor in the plant and the only transcription factor in the brassinolide (BR) signal transduction pathway. To explore the role BES1 plays on the stress resistance and diseases resistance in mango, we used bioinformatics methods to analyze the physicochemical properties, domains, protein structures and gene expression of BES1s family in mango. The results showed that in mango that the number of exons varies greatly, and all BES1s family members have the BES1_N domain. Evolution analysis and protein secondary structures showed that three groups were divided in BES1s family of mango, and there were significant differences among different groups. The qRT-PCR assay’s results showed that during the infection process of Cg, MiBES1.1 and MiBES1.5 were continuously up-regulated expression, and MiBES1.12 and MiBES1.13 lasted down-regulated expression; during the infection process of Xcm, mango’s BES1s family up-regulated expression at 12 h, except MiBES1.7 and MiBES1.9, and MiBES1.1~MiBES1.5 and MiBES1.11 down-regulated expression at 3 h; during the MeJA treatment process, MiBES1.7、MiBES1.9 and MiBES1.2 lasted down-regulation at 48 h, mango’s BES1s gene family down-regulated expression, except MiBES1.5 and MiBES1.11~MiBES1.13. A scientific basis is provided for the further study of the BES1s family function in mango.

Key words: transcription factor, mango, bioinformatics

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