数字农科院2.0

Systematic characterization of Gossypium GLN family genes reveals a potential function of GhGLN1.1a regulates nitrogen use efficiency in cotton

文献类型： 外文期刊

作者： Xiaotong Li;Yunqi Gu;Mirezhatijiang Kayoumu;Noor Muhammad;Xiangru Wang;Huiping Gui;Tong Luo;Qianqian Wang;Xieraili Wumaierjiang;Sijia Ruan;Asif Iqbal;Xiling Zhang;Meizhen Song;Qiang Dong

作者机构：

关键词： Gene expression;Gene family;Glutamine synthetase;Gossypium;Nitrogen use efficiency

期刊名称： BMC Plant Biology

ISSN： 1471-2229

年卷期： 2024 年 24 卷 1 期

页码：

收录情况： SCIE（2024版）

摘要： The enzyme glutamine synthetase (GLN) is mainly responsible for the assimilation and reassimilation of nitrogen (N) in higher plants. Although the GLN gene has been identified in various plants, there is little information about the GLN family in cotton (Gossypium spp.). To elucidate the roles of GLN genes in cotton, we systematically investigated and characterized the GLN gene family across four cotton species (G. raimondii, G. arboreum, G. hirsutum, and G. barbadense). Our analysis encompassed analysis of members, gene structure, cis-element, intragenomic duplication, and exploration of collinear relationships. Gene duplication analysis indicated that segmental duplication was the primary driving force for the expansion of the GhGLN gene family. Transcriptomic and quantitative real-time reverse-transcription PCR (qRT-PCR) analyses indicated that the GhGLN1.1a gene is responsive to N induction treatment and several abiotic stresses. The results of virus-induced gene silencing revealed that the accumulation and N use efficiency (NUE) of cotton were affected by the inactivation of GhGLN1.1a. This study comprehensively analyzed the GhGLN genes in Gossypium spp., and provides a new perspective on the functional roles of GhGLN1.1a in regulating NUE in cotton.

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