典型文献
Comparative genomic analyses reveal cis-regulatory divergence after polyploidization in cotton
文献摘要：
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.
文献关键词：
中图分类号：
作者姓名：
Jiaqi You;Min Lin;Zhenping Liu;Liuling Pei;Yuexuan Long;Lili Tu;Xianlong Zhang;Maojun Wang
作者机构：
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
文献出处：
引用格式：
[1]Jiaqi You;Min Lin;Zhenping Liu;Liuling Pei;Yuexuan Long;Lili Tu;Xianlong Zhang;Maojun Wang-.Comparative genomic analyses reveal cis-regulatory divergence after polyploidization in cotton)[J].作物学报（英文版）,2022(06):1545-1556
A类：
Polyploidization,THSs,eum,TFBS,polyploidiza
B类：
Comparative,genomic,analyses,reveal,cis,regulatory,divergence,after,polyploidization,cotton,has,long,been,recognized,driver,evolutionary,formation,superior,plant,traits,coupled,expression,novelty,However,knowledge,effect,variation,changes,following,remains,limited,In,this,study,characterized,by,comparing,tetraploid,putative,diploid,ancestors,We,identified,Tn5,transposase,hypersensitive,sites,Gossypium,arbor,raimondii,hirsutum,respectively,found,that,conservation,promoter,was,associated,coordination,orthologous,genes,This,observation,consistent,ysis,binding,known,motifs,higher,scores,CS,showed,less,than,those,lower,levels,influenced,were,involved,regulation,networks,between,transcriptional,factors,target,describe,example,showing,turnover,linked,pattern,fiber,development,related,Our,findings,characterizes,relationships,contributing,desirable
AB值：
0.533141
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
