Premium
Comparative Morphological Studies of Microspore Derived and F 2 Plants Obtained from an Interspecific Rice Hybrid Oryza sativa Linn. × O. rufipogon Griff.) *
Author(s) -
Rout J. R.,
Sarma N. P.
Publication year - 1990
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1990.tb01287.x
Subject(s) - biology , oryza rufipogon , oryza sativa , stamen , interspecific competition , microspore , pollen , botany , interspecific hybridization , weedy rice , hybrid , gene , genetics
Anther culture of an interspecific rice hybrid from a cross of Oryza sativa × O. rufipogon was attempted. Of the 117 regenerated pollen clones, 56 could survive to maturity. A majority of these were either haploids or doubled haploids and very few turned out to be chromosomal variants. Comparative study of doubled haploids and the seed derived F 2 plants indicate the distinct advantages of anther culture techniques. (1) Androgenic plants, though few in number, showed greater ariation for all the traits with the exception of ear bearing tillers. (2) Predominance of recombinants with wild traits was observed in F 2 segregation. (3) It was possible to recover indica type recombinants among the anther‐derived plants with one or two traits introgressed from O. rufipogon . These results suggest the feasibility and utility of anther culture in distant hybridization for incorporation of alien variation into cultivated rice.