The analysis of exchanges in tritium-labelled meiotic chromosomes 1. Schistocerca gregaria

Craig-Cameron, T.A.; Jones, Gareth R.

doi:10.1038/hdy.1970.27

Cited by 25 publications

(3 citation statements)

References 13 publications

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“…Cytological studies using ring-rod heterozygotes of maize (Schwartz 1953) and Antirrhinum (Michaelis 1959) and genetical studies of the behaviour of tandem duplications in Drosophila melanogaster (Green 1968) suggested that low spontaneous levels of SCE may occur during meiosis. Taylor (1965) introduced tritiated thymidine autoradiography to study meiotic exchange events in spermatocytes of the grasshopper Romalea microptera, and this technique was subsequently applied to other species with the same purpose (Church and Wimber 1969;Craig-Cameron and Jones 1970;Jones 1971;Peacock 1968). With its limited resolution, only accurate observations of anaphase I and metaphase II chromosomes could be performed.…”

Section: A Long History Of Sce During Meiosismentioning

confidence: 99%

The template choice decision in meiosis: is the sister important?

Pradillo

Santos

2011

Chromosoma

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Recombination between homologous chromosomes is crucial to ensure their proper segregation during meiosis. This is achieved by regulating the choice of recombination template. In mitotic cells, double-strand break repair with the sister chromatid appears to be preferred, whereas interhomolog recombination is favoured during meiosis. However, in the last year, several studies in yeast have shown the importance of the meiotic recombination between sister chromatids. Although this thinking seems to be new, evidences for sister chromatid exchange during meiosis were obtained more than 50 years ago in non-model organisms. In this mini-review, we comment briefly on the most recent advances in this hot topic and also describe observations which suggest the existence of inter-sister repair during meiotic recombination. For instance, the behaviour of mammalian XY bivalents and that of trivalents in heterozygotes for chromosomal rearrangements are cited as examples. The "rediscovering" of the requirement for the sister template, although it seems to occur at a low frequency, will probably prompt further investigations in organisms other than yeast to understand the complexity of the partner choice during meiosis.

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Section: A Long History Of Sce During Meiosismentioning

confidence: 99%

The template choice decision in meiosis: is the sister important?

Pradillo

Santos

2011

Chromosoma

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“…In mammals, however, it is very difficult to analyze the meiotic crossing-over by such phenotypical analyses of marker genes because of the small litter size and long term of one generation. Morphologically, chiasma is the only figure to detect meiotic crossing-over between homologous chromosomes (Taylor, 1965;Craig-Cameron and Jones, 1970;Peacock, 1970;Jones, 1971;Tease, 1978), but metaphase I (MI) chromosomes are usually fuzzy and morphologically obscure.…”

Section: Introductionmentioning

confidence: 99%

Mitomycin C-induced meiotic crossing-over on the interstitial segments in the Chinese hamster heterozygous for a reciprocal translocation.

Sonta

Kongi

1988

The Japanese journal of genetics

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“…Its acceptance has gained credibility with the finding that even in prokaryotes the process of recombination involves breakage of DNA molecule (Meselson and Weigle 1961, Kellenberger et al 1961, Meselson 1964. Also, the autoradiographic studies of Taylor (1965), Peacock (1968Peacock ( , 1970 and others (Craig-Cameron andJones 1970, Church andWimber 1969) have shown that breakage and reunion of chromatids are associated with the process of crossing over.…”

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confidence: 99%