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Towards a deeper integrated multi-omics approach in the root system to develop climate-resilient rice

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Abstract

Roots are the only organ system to uptake water and nutrients from the soil. The root system is crucial for plants to survive and adapt to environmental stresses. Therefore, the root system architecture (RSA) is an important breeding target for developing climate-resilient rice. Since the rice genome has been completely sequenced, many genes for root development have been cloned and characterized. In addition, with the advances in technologies related to omics analysis, such as high-throughput sequencing, transcriptome analysis of roots has also progressed. In contrast, high-throughput root phenotyping has not been established not only in rice but also in whole plants because roots are hidden underground. This deficiency represents a bottleneck for utilizing an integrated multi-omics approach for molecular breeding of RSA. We first summarized previous transcriptome analyses for root development under various abiotic stresses such as drought, salinity, and heat, and assessed the current status of root phenotyping technology and modeling in rice. This knowledge allowed us to contemplate the possibility of applying an integrated multi-omics dataset from RSA to molecular breeding of climate-resilient rice.

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Acknowledgments

We thank the staff of the technical support center of the National Agriculture and Food Research Organization for their field management and experimental support

Funding

This work was financially supported by JST CREST Grant Number JPMJCR17O1, Japan.

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  1. Kanami Yoshino and Yuko Numajiri contributed equally to this work.

Authors and Affiliations

  1. Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan

    Kanami Yoshino & Taiji Kawakatsu

  2. Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kan-nondai, Tsukuba, Ibaraki, 305-8518, Japan

    Yuko Numajiri, Shota Teramoto, Tsuyoshi Tanaka, Takeshi Hayashi & Yusaku Uga

  3. Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, Takasaki, Gunma, 370-1207, Japan

    Naoki Kawachi

  4. Department of Frontier Research and Development, Kazusa DNA Research Institute, 2-6-7, Kazusa-Kamatari, Kisarazu, Chiba, 292-0818, Japan

    Takanari Tanabata

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  1. Kanami Yoshino
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Kanami Yoshino and Yuko Numajiri are co-first authors

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Yoshino, K., Numajiri, Y., Teramoto, S. et al. Towards a deeper integrated multi-omics approach in the root system to develop climate-resilient rice. Mol Breeding 39, 165 (2019). https://doi.org/10.1007/s11032-019-1058-4

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