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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (7): 1482-1494.doi: 10.16420/j.issn.0513-353x.2022-0472

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

Genome-wide Identification of GASA Family and Preliminary Exploration of Leaf Variegation Formation in Begonia masoniana

XUE Zhenzhen1, GUAN Hongfa3, LI Na2, LI Lingfei2,*(), ZHONG Chunmei1,*()   

  1. 1 Key Laboratory of Energy Plants Resource and Utilization,Ministry of Agriculture and Rural Affairs,Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass,Institute of Biomass Engineering,South China Agricultural University,Guangzhou 510642,China
    2 Key Laboratory of Southern Subtropical Plant Diversity,Fairy Lake Botanical Garden,Shenzhen & Chinese Academy of Sciences,Shenzhen,Guangdong 518004,China
    3 College of Life and Science,South China Agricultural University,Guangzhou 510642,China
  • Received:2023-02-26 Revised:2023-05-15 Online:2023-07-25 Published:2023-07-26
  • Contact: LI Lingfei, ZHONG Chunmei

Abstract:

In order to understand the potential functions of Gibberellic Acid-stimulated Arabidopsis (GASA)in Begonia masoniana(BmaGASAs),the bioinformatics analysis was carried out to identify the members of BmaGASA gene family,and then their expression patterns were analyzed. The results showed that ten members of the GASA family were distributed in four subgroups. The structural characteristics of BmaGASAs include 2-3 motifs,one GASA conserved domain,0-10 introns that varies among different members. The cis-acting elements distribution analysis showed that the BmaGASAs promoters contained abundant light and hormone response elements. BmaGASAs were widely expressed in various tissues and organs. In addition,BmaGASAs had significant differences in response to GA,ABA,SA,MeJA and auxin. This study indicates that members of the BmaGASA gene family are highly conserved and have diverse expression patterns. They may be involved in the growth and development of various tissues and organs,as well as the response processes of various biological or abiotic stress. Among them,BmaGASA7 may play an important role in leaf variegation formation.

Key words: Begonia masoniana, GASA, hormonal response, expression analysis, leaf variegation