Chromatin accessibility analysis reveals functional cis-regulatory regions related to fruit development and domestication in tomato
文献类型： 外文期刊
作者： Cheng, Ying-Juan 1 ; Zhang, Yu 1 ; Yu, Jiao 1 ; Meng, Xiang-Ru 1 ; Chang, Zhong-Yuan 1 ; Jiang, Fang-Ling 1 ; Wu, Zhen 1 ; Zhang, Ying-Ying 2 ; Xue, Jia-Yu 1 ; Zhang, Tian-Qi 1 ;
作者机构： 1.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Jiangsu, Peoples R China
2.Shanghai Acad Agr Sci, Hort Res Inst, Shanghai 201403, Peoples R China
3.Nanjing Agr Univ, Acad Adv Interdisciplinary Studies, Nanjing 210095, Peoples R China
关键词：
non-coding DNA sequences; accessible chromatin region;
期刊名称：PLANT JOURNAL （ 影响因子：5.7； 五年影响因子：7.0 ）
ISSN： 0960-7412
年卷期： 2025 年 123 卷 3 期
页码：
收录情况： SCI
摘要： Non-coding DNA sequences harbor vast regulatory programs that ensure the precise spatiotemporal control of gene expression, which is essential for proper plant development and trait formation. Chromatin accessibility analysis could identify functional DNA regions within the extensive non-coding sequences and infer regulatory elements, serving as a crucial approach to unravel the mysteries of non-coding DNA sequences. Tomato fruit, a fleshy organ, provides a special system for studying fruit development and trait formation. However, the role of cis-accessible chromatin regions (cis-ACRs) during tomato fruit development, particularly in comparison with protein-coding DNA sequences, remains poorly understood. Here, we used ATAC-seq to define the landscape of cis-ACRs during fruit development and domestication in tomato. Temporal differential analysis revealed the dynamic opening and closing of cis-ACRs during fruit development. Comparative analysis of cis-ACRs between cultivated and wild tomatoes highlighted their significant contributions to fruit domestication. Combining analysis with genomic structural variations (SVs) suggested that SVs are likely a key factor in the formation of specific accessible cis-ACRs in cultivated tomatoes. Moreover, using gene editing, we identified a functional cis-ACR within the intron of the MBP3 gene that regulates fruit development and size traits. Overall, our findings provide a comprehensive perspective on the roles of cis-ACRs in tomato fruit development and domestication.
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