caa a22 4500 477135331 CHVBK 20180405111716.0 cr unu---uuuuu 170330e19970501xx s 000 0 eng 10.1023/A:1002970021399 doi (NATIONALLICENCE)springer-10.1023/A:1002970021399 Genetic analysis of semidwarf mutants induced in indica rice (Oryza sativa L.) [Elektronische Daten] [T.P. Reddy, D.M. Ram Rao] The mode of inheritance of five semidwarf (SD) mutants and allelic relationship with DGWG (sd1) locus was studied. The five SD mutants viz., Basmati 370 (SD1), Basmati 370 (SD2), Basmati 370 (SD3), TCA 2 (SD) and TCA P2-5 (SD) when crossed with their tall parents exhibited monogenic inheritance of 3 tall: 1 semidwarf in the F2 progenies. The SD mutants were also crossed with semidwarf varieties (DGWG and Bala) possessing sd1 gene. Crosses between Basmati 370 (SD1) × Bala, Basmati 370 (SD3) × Bala and TCA 2 (SD) × DGWG produced tall F1 hybrids and in F2 generation, modified dihybrid ratios (9 : 6 : 1 and 9 : 7) were observed indicating that the mutants Basmati 370 (SD1), Basmati 370 (SD3) and TCA 2 (SD) are non-allelic to sd1 gene. Whereas, the mutants Basmati 370 (SD2) and TCA P2-5 (SD) when crossed with Bala produced semidwarf F1 hybrids and in F2 generation, segregation for plant height was not observed indicating that these mutants are allelic to sd1 gene. The three non-allelic SD mutants identified in the present study can be used in rice breeding as alternative gene sources for semidwarfism. Kluwer Academic Publishers, 1997 Oryza sativa nationallicence non-allelic nationallicence segregation nationallicence semidwarfism nationallicence sd1 gene nationallicence dwarf nationallicence mutations nationallicence Reddy T.P. Department of Genetics, Osmania University, 500 007, Hyderabad, India aut Ram Rao D.M. Research Extension Centre; Central Silk Board, Bilanakuppam post, Ramapuram via, Polupally village, Krishnagiri, 635 115, Dharmapuri District, Tamil nadu, India aut Euphytica Kluwer Academic Publishers 95/1(1997-05-01), 45-48 0014-2336 95:1<45 1997 95 10681 https://doi.org/10.1023/A:1002970021399 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002970021399 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Reddy T.P. Department of Genetics, Osmania University, 500 007, Hyderabad, India aut NATIONALLICENCE 700 1- Ram Rao D.M. Research Extension Centre; Central Silk Board, Bilanakuppam post, Ramapuram via, Polupally village, Krishnagiri, 635 115, Dharmapuri District, Tamil nadu, India aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 95/1(1997-05-01), 45-48 0014-2336 95:1<45 1997 95 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer