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Molecular characterization of SUT Gene Family in Solanaceae with emphasis on expression analysis of pepper genes during development and stresses

文献类型: 外文期刊

作者: Chen, Wenqi 1 ; Diao, Weiping 3 ; Liu, Huiqing 4 ; Guo, Qinwei 4 ; Song, Qiuping 2 ; Guo, Guangjun 3 ; Wan, Hongjian 2 ; Chen, Yougen 1 ;

作者机构: 1.Anhui Agr Univ, Coll Hort, Hefei, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Vegetables, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Vegetable Crops, Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Peoples R China

4.Quzhou Acad Agr & Forestry Sci, Quzhou 324000, Peoples R China

关键词: Solanaceae; pepper; sucrose transporter; gene family; evolution relationship

期刊名称:BIOENGINEERED ( 影响因子:6.832; 五年影响因子:4.815 )

ISSN: 2165-5979

年卷期: 2022 年 13 卷 6 期

页码:

收录情况: SCI

摘要: Sucrose, an essential carbohydrate, is transported from source to sink organs in the phloem and is involved in a variety of physiological and metabolic processes in plants. Sucrose transporter proteins (SUTs) may play significant parts in the phloem loading and unloading of sucrose. In our study, the SUT gene family was identified in four Solanaceae species (Capsicum annuum, Solanum lycopersicum, S. melongena, and S. tuberosum) and other 14 plant species ranged from lower and high plants. The comprehensive analysis was performed by integration of chromosomal distribution, gene structure, conserved motifs, evolutionary relationship and expression profiles during pepper growth under stresses. Chromosome mapping revealed that SUT genes in Solanaceae were distributed on chromosomes 4, 10 and 11. Gene structure analysis showed that the subgroup 1 members have the same number of introns and exons. All the SUTs had 12 transmembrane structural domains exception from CaSUT2 and SmSUT2, indicating that a structure variation might occurred among the Solanaceae SUT proteins. We also found a total of 20 conserved motifs, with over half of them shared by all SUT proteins, and the SUT proteins from the same subgroup shared common motifs. Phylogenetic analysis divided a total of 72 SUT genes in the plant species tested into three groups, and subgroup 1 might have diverged from a single common ancestor prior to the mono-dicot split. Finally, expression levels of CaSUTs were induced significantly under heat, cold, and salt treatments, indicating diverse functions of the CaSUTs to adapt to adverse environments.

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