01511nam a2200277Ia 4500 MX-MdCICY 20260521091049.0 CICY B-7691 Cytokinin Oxidase Regulates Rice Grain Production Science, 309, p.741, 2005 Most agriculturally important traits are regulated by genes known as quantitative trait loci (QTLs)derived from natural allelic variations. We here show that a QTL that increases grain productivity in rice, Gn1a, is a gene for cytokinin oxidase/ dehydrogenase (OsCKX2), an enzyme that degrades the phytohormone cytokinin. Reduced expression of OsCKX2 causes cytokinin accumulation in inflorescence meristems and increases the number of reproductive organs, resulting in enhanced grain yield. QTL pyramiding to combine loci for grain number and plant height in the same genetic background generated lines exhibiting both beneficial traits. These results provide a strategy for tailormade crop improvemen Ashikari, M. Sakakibara, H. Lin, S. Yamamoto, T. Takashi, T. Nishimura, A. Angeles, E.R. Angeles, E.R. Kitano, H. Matsuoka, M. https://drive.google.com/file/d/1YauHzCKMEKkoARFj1kNwgPGbyQOEls4U/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 17953 17953 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-7691 2025-06-25 12:47:06 2025-06-25 REF1