Sato Group • Plant Genetics Laboratory

Molecular genetics of plant embryogenesis



Research Summary

The goal of our research is to elucidate the mechanism of plant embryogenesis. We are focusing on processes of the patterning of apical-basal or dorsal-ventral axis formation, and the organogenesis during early stages of rice embryogenesis. We are taking a molecular genetic approach using a series of rice embryogenesis defective mutants as well as comparative embryology and genomics approaches in grass species. We are also responsible for managing, preservation, propagation, and distribution of rice genetic resources of wild rice species collected in the NIG under the NBRP.

Upper panel: mature rice embryo observed by confocal laser scanning microscope. Lower panels from left: rice grain, brown rice, immunohistochemical staining of a marker of undifferentiated stem cells in the shoot apical meristem in rice (OSH1), rice flowers.

Selected Publications

Shenton M, Kobayashi M, Terashima S, Ohyanagi H, Copetti D, HernándezHernández T, Zhang J, Ohmido N, Fujita M, Toyoda A, Ikawa H, Fujiyama A, Furuumi H, Miyabayashi T, Kubo T, Kudrna D, Wing R, Yano K, Nonomura KI, Sato Y, Kurata N. Evolution and diversity of the wild rice Oryza officinalis complex, across continents genome types, and ploidy levels. Genome Biol Evol. 2020 Mar 3. pii: evaa037.

Ishimoto K, Sohonahra S, Kishi-Kaboshi M, Itoh JI, Hibara KI, Sato Y, Watanabe T, Abe K, Miyao A, Nosaka-Takahashi M, Suzuki T, Ta NK, Shimizu-Sato S, Suzuki T, Toyoda A, Takahashi H, Nakazono M, Nagato Y, Hirochika H, Sato Y. Specification of basal region identity after asymmetric zygotic division requires mitogen-activated protein kinase 6 in rice. Development. 2019 Jun 21;146(13). pii: dev176305.

Itoh J, Sato Y, Sato Y, Hibara K, Shimizu-Sato S, Kobayashi H, Takehisa H, Sanguinet KA, Namiki N, Nagamura Y. Genome-wide analysis of spatiotemporal gene expression patterns during early embryogenesis in rice. Development. 2016 Apr 1;143(7):1217-27.

Suzuki M, Sato Y, Wu S, Kang BH, McCarty DR. Conserved Functions of the MATE Transporter BIG EMBRYO1 in Regulation of Lateral Organ Size and Initiation Rate. Plant Cell. 2015 Aug;27(8):2288-300.

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