Jia-Yu Xue, Hai-Yun Fan, Zhen Zeng, Yu-Han Zhou, Shuai-Ya Hu, Sai-Xi Li, Ying-Juan Cheng, Xiang-Ru Meng, Fei Chen, Zhu-Qing Shao, Yves Van de Peer

Comprehensive regulatory networks for tomato organ development based on the genome and RNAome of MicroTom tomato

  • Horticulture
  • Plant Science
  • Genetics
  • Biochemistry
  • Biotechnology

Abstract MicroTom has a short growth cycle and high transformation efficiency, and is a prospective model plant for studying organ development, metabolism, and plant–microbe interactions. Here, with a newly assembled reference genome for this tomato cultivar and abundant RNA-seq data derived from tissues of different organs/developmental stages/treatments, we constructed multiple gene co-expression networks, which will provide valuable clues for the identification of important genes involved in diverse regulatory pathways during plant growth, e.g. arbuscular mycorrhizal symbiosis and fruit development. Additionally, non-coding RNAs, including miRNAs, lncRNAs, and circRNAs were also identified, together with their potential targets. Interacting networks between different types of non-coding RNAs (miRNA-lncRNA), and non-coding RNAs and genes (miRNA-mRNA and lncRNA-mRNA) were constructed as well. Our results and data will provide valuable information for the study of organ differentiation and development of this important fruit. Lastly, we established a database (http://eplant.njau.edu.cn/microTomBase/) with genomic and transcriptomic data, as well as details of gene co-expression and interacting networks on MicroTom, and this database should be of great value to those who want to adopt MicroTom as a model plant for research.

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