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A Comprehensive Identification and Expression Analysis of VQ Motif-Containing Proteins in Sugarcane (Saccharum spontaneum L.) under Phytohormone Treatment and Cold Stress

文献类型： 外文期刊

作者： Liu, Ying 1 ; Liu, Xiaolan 1 ; Yang, Dandan 1 ; Yin, Ze 1 ; Jiang, Yaolan 1 ; Ling, Hui 3 ; Huang, Ning 3 ; Zhang, Dawei 1 ; Wu, Jinfeng 1 ; Liu, Lili 1 ; Xu, Liping 4 ; Yan, Mingli 1 ; Que, Youxiong 4 ; Zhou, Dinggang 1 ;

作者机构： 1.Hunan Univ Sci & Technol, Sch Life Sci, Hunan Key Lab Econ Crops Genet Improvement & Inte, Xiangtan 411201, Peoples R China

2.Coll Hunan Prov, Key Lab Integrated Management Pests & Dis Hort Cr, Key Lab Ecol Remediat & Safe Utilizat Heavy Met P, Xiangtan 411201, Peoples R China

3.Yulin Normal Univ, Coll Agr, Yulin 537000, Peoples R China

4.Fujian Agr & Forestry Univ, Minist Agr, Key Lab Sugarcane Biol & Genet Breeding, Minist Sci & Technol,Natl Engn Res Ctr Sugarcane, Fuzhou 350002, Peoples R China

5.Hunan Acad Agr Sci, Crop Res Inst, Changsha 410000, Peoples R China

关键词： Saccharum spontaneum; VQ gene; genome-wide analysis; Transcriptome; phytohormone; cold stress

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）

ISSN：

年卷期： 2022 年 23 卷 11 期

页码：

收录情况： SCI

摘要： The VQ motif-containing proteins play a vital role in various processes such as growth, resistance to biotic and abiotic stresses and development. However, there is currently no report on the VQ genes in sugarcane (Saccharum spp.). Herein, 78 VQ genes in Saccharum spontaneum were identified and classified into nine subgroups (I-IX) by comparative genomic analyses. Each subgroup had a similar structural and conservative motif. These VQ genes expanded mainly through whole-genome segmental duplication. The cis-regulatory elements (CREs) of the VQ genes were widely involved in stress responses, phytohormone responses and physiological regulation. The RNA-seq data showed that SsVQ gene expression patterns in 10 different samples, including different developmental stages, revealed distinct temporal and spatial patterns. A total of 23 SsVQ genes were expressed in all tissues, whereas 13 SsVQ genes were not expressed in any tissues. Sequence Read Archive (SRA) data showed that the majority of SsVQs responded to cold and drought stress. In addition, quantitative real-time PCR analysis showed that the SsVQs were variously expressed under salicylic acid (SA), jasmonic acid (JA), abscisic acid (ABA) and cold treatment. This study conducted a full-scale analysis of the VQ gene family in sugarcane, which could be beneficial for the functional characterization of sugarcane VQ genes and provide candidate genes for molecular resistance breeding in cultivated sugarcane in the future.

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