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棉花中生长调节因子相互作用因子的鉴定与特性分析

Identification and Characterization of the Growth-Regulating Factors-Interacting Factors in Cotton.

作者信息

Hu Daowu, Ge Yuting, Jia Yinhua, He Shoupu, Geng Xiaoli, Wang Liru, Pan Zhaoe, Iqbal Zubair, Mahmood Tahir, Li Hongge, Chen Baojun, Wang Xiaoyang, Pang Baoyin, Du Xiongming

机构信息

Institute of Cotton Research of Chinese Academy of Agricultural Science/State Key Laboratory of Cotton Biology, Anyang, China.

出版信息

Front Genet. 2022 Mar 14;13:851343. doi: 10.3389/fgene.2022.851343. eCollection 2022.

DOI:10.3389/fgene.2022.851343
PMID:35360847
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8964071/
Abstract

Growth-regulating factors-interacting factors (GIFs) are a type of transcription co-activators in plants, playing crucial roles in plants' growth, development, and stress adaptation. Here, a total of 35 genes were identified and clustered into two groups by phylogenetic analysis in four cotton genus. The gene structure and conserved domain analysis proved the conservative characteristics of genes in cotton. The function of genes was evaluated in two cotton accessions, Ji A-1-7 (33xi) and King, which have larger and smaller lateral root numbers, respectively. The results showed that the expression of in Ji A-1-7 (33xi) was higher than that in King. The enzyme activity and microstructure assay showed a higher POD activity, lower MDA content, and more giant cells of the lateral root emergence part phenotype in Ji A-1-7 (33xi) than in King. A mild waterlogging assay showed the genes were down-regulated in the waterlogged seedling. Further confirmation of the suppression of in cotton plants further confirmed that could reduce the lateral root numbers in cotton. This study could provide a basis for future studies of the role of genes in upland cotton.

摘要

生长调节因子相互作用因子（GIFs）是植物中的一类转录共激活因子，在植物生长、发育和胁迫适应中发挥关键作用。在此，通过系统发育分析在四个棉属中总共鉴定出35个基因并将其聚类为两组。基因结构和保守结构域分析证明了棉花中基因的保守特性。在两个棉花种质系，即分别具有较多和较少侧根数的冀A-1-7（33xi）和金中评估了这些基因的功能。结果表明，冀A-1-7（33xi）中该基因的表达高于金。酶活性和微观结构分析表明，冀A-1-7（33xi）中侧根发生部位的过氧化物酶（POD）活性更高、丙二醛（MDA）含量更低且有更多巨型细胞，这些表型均优于金。轻度涝渍试验表明，涝渍幼苗中该基因表达下调。在棉花植株中对该基因抑制作用的进一步证实进一步确认了该基因可减少棉花的侧根数。本研究可为今后研究该基因在陆地棉中的作用提供依据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/adb0/8964071/3a8c8ac16e31/fgene-13-851343-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/adb0/8964071/3a8c8ac16e31/fgene-13-851343-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/adb0/8964071/6eca77d56876/fgene-13-851343-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/adb0/8964071/3a8c8ac16e31/fgene-13-851343-g007.jpg

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