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Homolog pairing and meiotic progression in Coprinus cinereus
Chromosoma, 1999We have used fluorescence in situ hybridization to examine homolog pairing during the synchronous meiosis of the basidiomycete Coprinus cinereus. Using spread preparations of meiotic nuclei, we confirmed previous studies that showed that at 6 h post-karyogamy essentially all meiotic nuclei are in pachytene.
L, Li, E E, Gerecke, M E, Zolan
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Homologous pairing and chromosome dynamics in meiosis and mitosis
Biochimica Et Biophysica Acta Gene Regulatory Mechanisms, 2004Pairing of homologous chromosomes is an essential feature of meiosis, acting to promote high levels of recombination and to ensure segregation of homologs. However, homologous pairing also occurs in somatic cells, most regularly in Dipterans such as Drosophila, but also to a lesser extent in other organisms, and it is not known how mitotic and meiotic ...
Bruce D McKee
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Nucleolin Promotes Homologous DNA Pairing in vitro
Somatic Cell and Molecular Genetics, 1998We purified to near homogeneity a previously identified 100 kDa mammalian homologous DNA pairing protein. The purified 100 kDa protein also catalyzed high levels of cell-free homologous DNA recombination activity. This ATP-dependent activity was capable of forming conservative recombinant products between two circular, double-stranded DNA molecules. We
B, Thyagarajan +3 more
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Homolog Pairing and Segregation in Drosophila Meiosis
2008Pairing of homologous chromosomes is fundamental to their reliable segregation during meiosis I and thus underlies sexual reproduction. In most eukaryotes homolog pairing is confined to prophase of meiosis I and is accompanied by frequent exchanges, known as crossovers, between homologous chromatids.
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Homology of the paired fins in fishes
Journal of Morphology, 1933AbstractRecent and fossil fishes may be divided into groups having both pectoral and pelvic fins, pectorals only, pelvics only, or with a second pair of fins located anteriorly and seemingly not homologous with pelvics. In some groups the pelvics are located near the cloaca, with an extensive hiatus between the pectoral and pelvic neuromeres; other ...
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Homologous chromosome pairing in Schizosaccharomyces pombe
Yeast, 2006AbstractHomologous chromosome pairing is a central feature of meiosis I, contributing to the correct segregation of chromosomes during meiosis. The fission yeast, Schizosaccharomyces pombe, has been widely used to study meiotic chromosome dynamics, partly because studies in this yeast are simplified due to the lack of post‐pairing synaptic structures ...
Jennifer L, Wells +2 more
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The cytogenetics of homologous chromosome pairing in meiosis in plants
Cytogenetic and Genome Research, 2008Three activities hallmark meiotic cell division: homologous chromosome pairing, synapsis, and recombination. Recombination and synapsis are well-studied but homologous pairing still holds many black boxes. In the past several years, many studies in plants have yielded insights into the mechanisms of chromosome pairing interactions.
C G, Bozza, W P, Pawlowski
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Initiation of homologous chromosome pairing during meiosis
Biochemical Society Transactions, 2006Following pre-meiotic DNA replication, homologous chromosomes must be paired and become tightly linked to ensure reductional segregation during meiosis I. Therefore initiation of homologous chromosome pairing is vital for meiosis to proceed correctly. A number of factors contribute to the initiation of homologous chromosome pairing including telomere ...
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