The cytogenetic research on desynaptic variation of somaclone from somatic cell culture of Indica Rice
1988
Ling Dinghou | Chen Meifang (Academia Sinica, Guangzhou (China). Southchina Inst. of Botany)
Among the regenerated plants from somatic cell culture of IR54, one sterile plant with seed setting frequency 2.23% was found to be a desynapsis mutant. The chromosome paring in early prophase of meiosis was normal. Various numbers of univalents in, and laggards diakinesis and metaphase I in anaphase I were observed respectively. The maximum number of laggares in an anaphase cell was 10. In the metaphase I the normal chromosome paring (12II) was only making up 17.7% of all cells observed. The imbalance of chromosome distribution in the meiosis resulted in the sterility of the regenerated plant
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