Desynapsis in Saccharum robustum

Sreenivasan, T. V.; Naravula, Jalaja

doi:10.1007/bf00135108

Cited by 2 publications

(1 citation statement)

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“…This is governed by genetic factors as well as environmental factors (Henderson 1962;Maguire 1976;Pena and Puertas 1978). Mutants forming univalents have spontaneously occurred (Sreenivasan and Jalaja 1981;Raja Rao and Kumar 1983) and have been induced by irradiation and chemical mutagens (Sjodin 1970;Sharma and Reinbergs 1974;Gottschalk and Klein 1976). In rice, Chao et al (1960) and Wang et al (1965) induced desynaptic mutants by irradiation of thermal neutron and X-rays, respectively, and Katayama (1961) induced asynaptic mutants by X-ray irradiation.…”

Section: Discussionmentioning

confidence: 99%

Genetic control of meiosis in rice Oryza sativa L. II. Cytogenetical analyses of desynaptic mutants.

Kitada

Omura

1983

The Japanese journal of genetics

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Eleven desynaptic mutants of Oryza sativa L. were cytogenetically investigated.Mutants were induced by the treatment of fertilized egg cells with N-methyl-N-nitrosourea.Normal chromosome pairing occurred at pachytene in all mutants. Various numbers of univalents appeared at diakinesis and metaphase I in the mutants. The reduction of the mean chiasma frequency per bivalent as well as per cell were recognized in all mutants. The lower the mean chiasma frequency, the lower the mean bivalent frequency. The results of gene analyses indicate that each of the desynaptic mutants is governed by a single recessive gene and that at least 10 loci are represented.

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