Spatially and Temporally Regulated Expression of Rice MADS Box Genes with Similarity to Arabidopsis Class A, B and C Genes
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概要
- 論文の詳細を見る
The floral morphology of grass species is distinct from that of typical dicot plants. In order to achieve a better understanding of the molecular basis for this diversion, we isolated RAP1A, RAP1B and RAG, putative rice orthologs for the Arabidopsis class A gene APETALA1(AP1)and class C gene AGAMOUS(AG). The expression patterns of RAP1A, RAG and OsMADS2, a rice ortholog of the class B gene, were analyzed by in situ hybridization. RAP1A mRNA was expressed in the apical region of the floral meristem at an early stage of spikelet development, and then its expression was localized in developing lemma, palea and lodicules. The OsMADS2 transcript was first observed in the region where stamen primordia are formed. Soon after, OsMADS2 mRNA appeared in the lodicule primordia as well as the stamen primordia, and this RNA accumulation pattern persisted until late sages of floral development. The expression of RAG was observed in stamens and pistils of wild-type young spikelets. These RNA accumulation patterns are mostly similar to those of Arabidopsis class A, B, C genes, supporting the notion that the ABC model may be extended to rice.
- 日本植物生理学会の論文
著者
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SHIMAMOTO Ko
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology
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SHIMAMOTO Ko
Lab.Plant Mol.Genet.NAIST
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Shimamoto Ko
Lab. Of Plant Mol. Genet. Nara Institute Of Science And Technology
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Morita Miyo
Laboratory Of Plant Molecular Genetics Nara Institute Of Science And Technology
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Kyozuka J
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Kyozuka Junko
Laboratory For Plant Molecular Genetics Nara Institute Of Science And Technology
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KOBAYASHI TAKESHI
Laboratory of Applied Microbiology, Graduate School of Marine Science and Technology, Tokyo Universi
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Shimamoto K
Laboratory Of Plant Molecular Genetics Nara Institute Of Science And Technology
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Shimamoto Ko
Laboratory For Plant Molecular Genetics Nara Institute Of Science And Technology
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Morita Masakazu
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology
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Kobayashi Takeshi
Laboratory Of Plant Molecular Genetics Nara Institute Of Science And Technology
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