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Conserved noncoding sequences correlate with distant gene contacts in Arabidopsis and Brassica

Journal of Integrative Plant Biology 2023年第6期65卷 1467-1478页

作者： Lei Zhang Jian Wu Jianli Liang Runmao Lin Chao Sun Qirui Dai Lupeng Zhang Huiling Guo Ranze Zhao Xiaowu Wang State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China Research Institute of Forestry Chinese Academy of ForestryBeijing 100091China

Physical contact between genes distant on chromosomes is a potentially important way for genes to coordinate their *** investigate the potential importance of distant contacts,we performed high-throughput chromatin conformation capture(Hi-C)experiments on leaf nuclei isolated from Brassica rapa and Brassica *** then combined our results with published Hi-C data from Arabidopsis *** found that distant genes come into physical contact and do so preferentially between the proximal promoter of one gene and the downstream region of another *** with higher numbers of conserved noncoding sequences(CNSs)nearby were more likely to have contact with distant *** more CNSs came higher numbers of transcription factor binding sites and more histone modifications associated with the *** addition,for the genes we studied,distant contacting genes with CNSs were more likely to be transcriptionally *** observations suggest that CNSs may enrich active histone modifications and recruit transcription factors,correlating with distant contacts to ensure coordinated *** study advances our knowledge of gene contacts and provides insights into the relationship between CNSs and distant gene contacts in plants.

关键词： Arabidopsis Brassica conserved noncoding sequences distant gene contacts Hi-C

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