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A new mutant named sdl (stripe and drooping leaf) was characterized from indica cultivar Zhenong 34 by ethylmethane sulfonate (EMS) mutagenesis. The mutant sdl exhibited development defects including stripe and drooping leaf, dwarfism and deformed floral organs. The gene SDL was found allelic to RNRS1 by map-based cloning, which was homologous to Arabidopsis TSO2 encoding the small subunit of ribonucleotide...
Palea and lemma are grass specific floral organs, and their identities to the typical floral organs in eudicots remains unclear. In the present study, we identified and characterized a defective body of palea (dbop) from ethyl methyl sulfonate mutagenesis lines of Oryza sativa ssp. japonica cv. Nipponbare. The dbop mutant exhibited abnormal palea without the body of palea. By map-based cloning, the...
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