Induced desynapsis in grain Sorghum.

Mode of Bivalent Formation in Desynaptic Mutants of Rice (Oryza sativa L.).

“…Desynapsis on the other hand means pairing of homologues at pachytene, which begin to fall apart at diplotene so that they remain completely or partially unpaired at diakinesis and metaphase I. Bivalent formation in synaptic mutants is considered to be non-random i.e., in population of pollen mother cells (PMCs) some homologous pairs are left as univalents more frequently than others (Swaminathan and Murty 1959, Koduru andRao 1981). In only a few cases could the specific chromosomes of the complement affected by the mutant gene be identified.Although desynapsis has been reported in rice earlier (Chao et al 1960, Wang et al 1965, Ratho and Mishra 1973, Kitada and Omura 1983, Rao and Reddi 1985, Reddi and Rao 1990 no information is available on the mode of bivalent formation in them. The present study documents the mode of bivalent formation in desynaptic mutants of rice.…”

“…Although desynapsis has been reported in rice earlier (Chao et al 1960, Wang et al 1965, Ratho and Mishra 1973, Kitada and Omura 1983, Rao and Reddi 1985, Reddi and Rao 1990 no information is available on the mode of bivalent formation in them. The present study documents the mode of bivalent formation in desynaptic mutants of rice.…”