The meiotic chromosome axis is a proteinaceous structure along which sister chromatids are arranged in a loop-base array during meiotic prophase I. In diverse species including plants, chromosome axis components have been shown to be critical for synapsis and meiotic recombination and hence essentia...
Recombination-mediated linking of homologous chromosomes is a unique meiotic feature that enables the halving of chromosomal ploidy in sexual life cycles. Meiotic recombination is initiated by programmed DNA double-strand breaks (DSBs) that are generated by focal multi-protein clusters that condense...
Recombination-mediated linking of homologous chromosomes is a unique meiotic feature that enables the halving of chromosomal ploidy in sexual life cycles. Meiotic recombination is initiated by programmed DNA double-strand breaks (DSBs) that are generated by focal multi-protein clusters that condense...
Meiotic DSB, catalyzed by the Spo11 transesterase protein and accessory DSB proteins, form in the nucleosome depleted regions (NDR) at promoters, preferentially those located on the chromosome loops that shape meiotic chromosomes, whereas the DSB proteins are located on chromosome axes at the basis ...
Meiotic progression in mammals is governed by tightly coordinated transcriptional programs and surveillance mechanisms that ensure the successful pairing, synapsis, and segregation of homologous chromosomes. In spermatocytes, homolog pairing is safeguarded by the pachytene checkpoint, whose mechanis...
