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全基因组分析五个茄科植物中的家族基因和 在盐胁迫下的功能分析。

Genome-Wide Analysis of Family Genes in Five Solanaceous Plants and Functional Analysis of in Salt Stress.

机构信息

State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Xianyang 712100, China.

State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China.

出版信息

Int J Mol Sci. 2023 Sep 11;24(18):13965. doi: 10.3390/ijms241813965.

DOI:10.3390/ijms241813965
PMID:37762268
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10531278/
Abstract

Multiprotein bridging factor 1 (MBF1) is an ancient family of transcription coactivators that play a crucial role in the response of plants to abiotic stress. In this study, we analyzed the genomic data of five Solanaceae plants and identified a total of 21 genes. The expansion of MBF1a and MBF1b subfamilies was attributed to whole-genome duplication (WGD), and the expansion of the MBF1c subfamily occurred through transposed duplication (TRD). Collinearity analysis within Solanaceae species revealed collinearity between members of the MBF1a and MBF1b subfamilies, whereas the MBF1c subfamily showed relative independence. The gene expression of was induced by sodium chloride (NaCl), polyethylene glycol (PEG), ABA (abscisic acid), and ethrel treatments, with the highest expression observed under NaCl treatment. The overexpression of significantly enhanced the salt tolerance of tomato, and the functional deficiency of decreased the tolerance of tomato to salt stress. enhanced antioxidant enzyme activity to reduce the accumulation of reactive oxygen species (ROS) and alleviated plasma membrane damage under salt stress. upregulated the expression levels of salt stress-related genes to enhance salt tolerance in tomato. In conclusion, this study provides basic information for the study of the family of Solanaceae under abiotic stress, as well as a reference for the study of other plants.

摘要

多蛋白桥接因子 1（MBF1）是一类古老的转录共激活因子家族，在植物应对非生物胁迫的反应中起着至关重要的作用。在本研究中，我们分析了 5 种茄科植物的基因组数据，共鉴定出 21 个基因。MBF1a 和 MBF1b 亚家族的扩张归因于全基因组复制（WGD），而 MBF1c 亚家族的扩张则是通过转座复制（TRD）发生的。茄科物种内的共线性分析表明，MBF1a 和 MBF1b 亚家族的成员之间存在共线性，而 MBF1c 亚家族则相对独立。基因的表达受到氯化钠（NaCl）、聚乙二醇（PEG）、ABA（脱落酸）和乙稀利处理的诱导，其中 NaCl 处理下的表达水平最高。的过表达显著增强了番茄的耐盐性，而的功能缺失降低了番茄对盐胁迫的耐受性。通过提高抗氧化酶活性来减少活性氧（ROS）的积累，从而缓解盐胁迫下的质膜损伤。上调盐胁迫相关基因的表达水平，从而增强番茄的耐盐性。综上所述，本研究为茄科植物在非生物胁迫下的研究提供了基础信息，也为其他植物的研究提供了参考。

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