Results 31 to 40 of about 3,094 (169)
Frontiers in Plant Science, 2018 Meiosis, the type of cell division that halves the chromosome number, shows a considerable degree of diversity among species. Unraveling molecular mechanisms of the meiotic machinery has been mainly based on meiotic mutants, where the effects of a change
Tomás Naranjo
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Meiotic recombination in Arabidopsis is catalysed by DMC1, with RAD51 playing a supporting role. [PDF]
PLoS Genetics, 2013 Recombination establishes the chiasmata that physically link pairs of homologous chromosomes in meiosis, ensuring their balanced segregation at the first meiotic division and generating genetic variation.
Olivier Da Ines +5 more
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Chiasmata have no effect on fertility [PDF]
Heredity, 1974 The hypothesis that most gametes are rendered incapable of fertilisation owing to errors of crossing over is examined and found to have no reliable basis. The general high fertility of eggs is sufficient evidence to refute the hypothesis.
openaire +2 more sources
C. elegans ZHP-4 is required at multiple distinct steps in the formation of crossovers and their transition to segregation competent chiasmata. [PDF]
PLoS Genetics, 2018 Correct segregation of meiotic chromosomes depends on DNA crossovers (COs) between homologs that culminate into visible physical linkages called chiasmata.
Hanh Nguyen +4 more
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The role of rice HEI10 in the formation of meiotic crossovers. [PDF]
PLoS Genetics, 2012 HEI10 was first described in human as a RING domain-containing protein that regulates cell cycle and cell invasion. Mice HEI10(mei4) mutant displays no obvious defect other than meiotic failure from an absence of chiasmata. In this study, we characterize
Kejian Wang +7 more
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European Journal of Entomology, 2007 The New World grasshopper Cornops aquaticum (Leptysminae: Acrididae) shows a geographical pattern for three Robertsonian polymorphisms in its southernmost area of distribution in Argentina and Uruguay.
Pablo C. COLOMBO
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PLoS ONE, 2016 Meiotic recombination occurs as a programmed event that initiates by the formation of DNA double-strand breaks (DSBs) that give rise to the formation of crossovers that are observed as chiasmata.
Adela Calvente +2 more
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A ZIP1 separation-of-function allele reveals that centromere pairing drives meiotic segregation of achiasmate chromosomes in budding yeast. [PDF]
PLoS Genetics, 2018 In meiosis I, homologous chromosomes segregate away from each other-the first of two rounds of chromosome segregation that allow the formation of haploid gametes.
Emily L Kurdzo +3 more
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Phosphoregulation of DSB-1 mediates control of meiotic double-strand break activity
eLife, 2022 In the first meiotic cell division, proper segregation of chromosomes in most organisms depends on chiasmata, exchanges of continuity between homologous chromosomes that originate from the repair of programmed double-strand breaks (DSBs) catalyzed by the
Heyun Guo +9 more
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Achiasmy: Male fruit flies are not ready to mix
Frontiers in Cell and Developmental Biology, 2016 Maintenance of the chromosomal copy number over generations and recombination between homologous chromosomes is a hallmark of meiotic cell division.
Alphy John +2 more
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