Genetic analysis and mapping of high-tillering and dwarf mutant htd1-2 in rice.

作者: Hai-Pai JIANG , Shu-Ying ZHANG , Jin-Song BAO , Bo-Lun WANG , Shu WANG

DOI: 10.3724/SP.J.1005.2009.00531

关键词: Genetic analysisAlleleMolecular markerBotanyDwarfismOryza sativaNuclear geneBiologyMutantGeneticsGene mapping

摘要: Tillering is one of the most important agronomic traits of rice. In order to explore the molecular mechanism of rice tillering, a high-tillering dwarf 1-2 (htd1-2) mutant was isolated from the offspring of the indica rice (Oryza sativa L. ssp. indica) variety 9311 treated with 350Gy 60Co gamma-radiation. Genetic analysis showed that both high tillering and dwarf phenotypes of htd1-2 were controlled by a single recessive nuclear gene. By means of molecular marker technique, the HIGH-TILLERING DWARF1-2 (HTD1-2) gene was mapped …

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