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Identification and expression analysis of LEA gene family members in pepper (Capsicum annuum L.)

文献类型： 外文期刊

作者： Zhao, Yongyan 1 ; Hao, Yupeng 1 ; Dong, Zeyu 1 ; Tang, Wenchen 1 ; Wang, Xueqiang 1 ; Li, Jun 1 ; Wang, Luyao 1 ; Hu, Yan 1 ; Fang, Lei 1 ; Guan, Xueying 1 ; Gu, Fenglin 3 ; Liu, Ziji 4 ; Zhang, Zhiyuan 1 ;

作者机构： 1.Zhejiang Univ, Hainan Inst, Sanya, Peoples R China

2.Zhejiang Univ, Inst Crop Sci, Plant Precis Breeding Acad, Zhejiang Prov Key Lab Crop Genet Resources, Hangzhou, Peoples R China

3.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Sanya Res Inst, Hainan Key Lab Biosafety Monitoring & Mol Breeding, Sanya, Peoples R China

4.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Key Lab Crop Gene Resources & Germplasm Enhancemen, Minist Agr, 4 Xueyuan Rd, Haikou 571101, Hainan, Peoples R China

5.Yazhou Bay Sci & Technol City, Innovat & Res Valley, Sanya, Hainan, Peoples R China

6.Spice & Beverage Res Inst Xinglong Town, Wanning City, Hainan, Peoples R China

关键词： cold stress; gene family; late embryogenesis abundant; placental development

期刊名称：FEBS OPEN BIO （ 影响因子：2.6； 五年影响因子：2.5 ）

ISSN： 2211-5463

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Pepper (Capsicum annuum L.) is an economically important crop containing capsaicinoids in the seed and placenta, which has various culinary, medical, and industrial applications. Late embryogenesis abundant (LEA) proteins are a large group of hydrophilic proteins participating in the plant stress response and seed development. However, to date there have been no genome-wide analyses of the LEA gene family in pepper. In the present study, 82 LEA genes were identified in the C. annuum genome and classified into nine subfamilies. Most CaLEA genes contain few introns (+/- 2) and are unevenly distributed across 10 chromosomes. Eight pairs of tandem duplication genes and two pairs of segmental duplication genes were identified in the LEA gene family; these duplicated genes were highly conserved and may have performed similar functions during evolution. Expression profile analysis indicated that CaLEA genes exhibited different tissue expression patterns, especially during embryonic development and stress response, particularly in cold stress. Three out of five CaLEA genes showed induced expression upon cold treatment. In summary, we have comprehensively reviewed the LEA gene family in pepper, offering a new perspective on the evolution of this family.

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