ArticleScientific reports2017
OsBT1 encodes an ADP-glucose transporter involved in starch synthesis and compound granule formation in rice endosperm.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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34 citing papers in PubMed, 68 citations in OpenAlex.
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- A mitochondrion-associated PPR protein, WBG1, regulates grain chalkiness in rice.Frontiers in plant science · 2023Article
- Genome-Wide Analysis and Functional Characterization of Pyruvate Kinase (PK) Gene Family Modulating Rice Yield and Quality.International journal of molecular sciences · 2022Article
- Rice co-expression network analysis identifies gene modules associated with agronomic traits.Plant physiology · 2022Article
- Wheat genomic study for genetic improvement of traits in China.Science China. Life sciences · 2022Review
- Starch biosynthesis in guard cells has features of both autotrophic and heterotrophic tissues.Plant physiology · 2022Article
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- Three Diverse Granule Preparation Methods for Proteomic Analysis of Mature Rice (Molecules (Basel, Switzerland) · 2022Article
- Post-genomics revolution in the design of premium quality rice in a high-yielding background to meet consumer demands in the 21st century.Plant communications · 2022Review
- Coalescence and directed anisotropic growth of starch granule initials in subdomains of Arabidopsis thaliana chloroplasts.Nature communications · 2021Article
- Starch biosynthesis in cereal endosperms: An updated review over the last decade.Plant communications · 2021Review
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9 authors at 3 institutions in 1 country.
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Abstract
Starch is the main storage carbohydrate in higher plants. Although several enzymes and regulators for starch biosynthesis have been characterized, a complete regulatory network for starch synthesis in cereal seeds remains elusive. Here, we report the identification and characterization of the rice Brittle1 (OsBT1) gene, which is expressed specifically in the developing endosperm. The osbt1 mutant showed a white-core endosperm and a significantly lower grain weight than the wild-type. The formation and development of compound starch granules in osbt1 was obviously defective: the amyloplast was disintegrated at early developmental stages and the starch granules were disperse and not compound in the endosperm cells in the centre region of osbt1 seeds. The total starch content and amylose content was decreased and the physicochemical properties of starch were altered. Moreover, the degree of polymerization (DP) of amylopectin in osbt1 was remarkably different from that of wild-type. Map-based cloning of OsBT1 indicated that it encodes a putatively ADP-glucose transporter. OsBT1 coded protein localizes in the amyloplast envelope membrane. Furthermore, the expression of starch synthesis related genes was also altered in the osbt1 mutant. These findings indicate that OsBT1 plays an important role in starch synthesis and the formation of compound starch granules.
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