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The WRKY gene family in the halophyte Limonium bicolor: identification, expression analysis, and regulation of salt stress tolerance.
Zhu, Zhihui; Chao, Erkun; Jiang, Aijuan; Chen, Xiaofang; Ning, Kai; Xu, Hualing; Chen, Min.
Afiliación
  • Zhu Z; Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China.
  • Chao E; Dongying Institute, Shandong Normal University, No. 2 Kangyang Road, Dongying, 257000, China.
  • Jiang A; DongYing Academy of Agricultural Sciences, No. 383 Jiaozhou Road, Dongying, 257000, Shandong, China.
  • Chen X; Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China.
  • Ning K; Dongying Institute, Shandong Normal University, No. 2 Kangyang Road, Dongying, 257000, China.
  • Xu H; The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, 264025, Shandong, China.
  • Chen M; The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, 264025, Shandong, China.
Plant Cell Rep ; 43(7): 167, 2024 Jun 12.
Article en En | MEDLINE | ID: mdl-38865016
ABSTRACT
KEY MESSAGE 63 L. bicolor WRKY genes were identified and their informatics was analyzed. The results suggested that the LbWRKY genes involved in the development and salt secretion of salt glands in L. bicolor. Salt stress, as a universal abiotic stress, severely inhibits the growth and development of plants. WRKY transcription factors play a vital role in plant growth and development, as well as in response to various stresses. Nevertheless, little is known of systematic genome-wide analysis of the WRKY genes in Limonium bicolor, a model recretohalophyte. In this study, 63 L. bicolor WRKY genes were identified (LbWRKY1-63), which were unevenly distributed across seven chromosomes and one scaffold. Based on the structural and phylogenetic characteristics, 63 LbWRKYs are divided into three main groups. Cis-elements in the LbWRKY promoters were related to growth and development, phytohormone responses, and stress responses. Colinearity analysis showed strong colinearity between LbWRKYs and GmWRKYs from soybean (Glycine max). Therefore, LbWRKY genes maybe have similar functions to GmWRKY genes. Expression analysis showed that 28 LbWRKY genes are highly expressed in roots, 9 in stems, 26 in leaves, and 12 in flowers and most LbWRKY genes responded to NaCl, ABA, and PEG6000. Silencing LbWRKY10 reduced salt gland density and salt secretion ability of leaves, and the salt tolerance of the species. Consistent with this, genes associated with salt gland development were markedly down-regulated in the LbWRKY10-silenced lines. Our findings suggested that the LbWRKY genes involved in the development and salt secretion of salt glands in L. bicolor. Our research provides new insights into the functions of the WRKY family in halophytes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Proteínas de Plantas / Factores de Transcripción / Familia de Multigenes / Regulación de la Expresión Génica de las Plantas / Plumbaginaceae / Plantas Tolerantes a la Sal / Tolerancia a la Sal Idioma: En Revista: Plant Cell Rep Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Proteínas de Plantas / Factores de Transcripción / Familia de Multigenes / Regulación de la Expresión Génica de las Plantas / Plumbaginaceae / Plantas Tolerantes a la Sal / Tolerancia a la Sal Idioma: En Revista: Plant Cell Rep Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania