中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > Comparative genomic analyses reveal cis-regulatory divergence after polyploidization in cotton 作物学报(英文版) 2022,10 (6)
Position: Home > Articles > Comparative genomic analyses reveal cis-regulatory divergence after polyploidization in cotton The Crop Journal 2022,10 (6)

Comparative genomic analyses reveal cis-regulatory divergence after polyploidization in cotton

作  者：
Jiaqi You;Min Lin;Zhenping Liu;Liuling Pei;Yuexuan Long;Lili Tu;Xianlong Zhang;Maojun Wan
单  位：
National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, Hubei, Chin;National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, Hubei, China;School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, Hubei, China
关键词：
Cotton;Polyploidization;Transcriptional regulation;Fiber development;TRANSCRIPTION-FACTOR-BINDING;I-HYPERSENSITIVE SITES;GENE-EXPRESSION;DUPLICATED GENES;OPEN CHROMATIN;DNA;EVOLUTION;DOMINANCE;ELEMENTS;CEL
摘  要：
Polyploidization has long been recognized as a driver for the evolutionary formation of superior plant traits coupled with gene expression novelty. However, knowledge of the effect of regulatory variation on expression changes following polyploidization remains limited. In this study, we characterized tran-scriptional regulatory divergence by comparing tetraploid cotton with its putative diploid ancestors. We identified 144,827, 99,609, and 219,379 Tn5 transposase-hypersensitive sites (THSs) in Gossypium arbor-eum, G. raimondii, and G. hirsutum, respectively, and found that the conservation of promoter THSs was associated with coordination of orthologous genes expression. This observation was consistent with anal-ysis of transcription-factor binding sites (TFBS) for 262 known motifs: genes with higher TFBS conserva-tion scores (CS) showed less change than those genes with lower TFBS CS in expression levels. TFBS influenced by genomic variation were involved in the novel regulation networks between transcriptional factors and target genes in tetraploid cotton. We describe an example showing that the turnover of TFBS was linked to expression pattern divergence of genes involved in fiber development (fiber-related genes). Our findings reveal the regulatory divergence of the transcriptional network in cotton after polyploidiza-tion and characterizes the regulatory relationships of genes contributing to desirable traits.(c) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

相似文章

PDF下载 PDF预览
导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46