Results 11 to 20 of about 67,099 (264)
Transcriptomics of Meiosis in the Male Mouse [PDF]
Frontiers in Cell and Developmental Biology, 2021 Molecular studies of meiosis in mammals have been long relegated due to some intrinsic obstacles, namely the impossibility to reproduce the process in vitro, and the difficulty to obtain highly pure isolated cells of the different meiotic stages.
Adriana Geisinger +3 more
doaj +5 more sources
True polyploid meiosis in the human male [PDF]
Genetics and Molecular Biology, 2018 Polyploidy does not usually occur in germinal cells of mammals and other higher vertebrates. We describe a unique example of mosaic autotetraploidy in the meiosis of a human male. Although the original observations were made in the late 1960s, we did not
Peter L. Pearson, Kamlesh Madan
doaj +6 more sources
ATR is a multifunctional regulator of male mouse meiosis [PDF]
Nature Communications, 2018 ATR kinase is required for meiosis in non-mammalian model organisms. Here the authors demonstrate, using a tissue-specific knockout approach, that ATR is also essential for male meiosis in mouse, regulating meiotic recombination and synapsis.
Alexander Widger +15 more
doaj +8 more sources
Meiosis in male Drosophila [PDF]
Spermatogenesis, 2012 Meiosis entails sorting and separating both homologous and sister chromatids. The mechanisms for connecting sister chromatids and homologs during meiosis are highly conserved and include specialized forms of the cohesin complex and a tightly regulated homolog synapsis/recombination pathway designed to yield regular crossovers between homologous ...
McKee, Bruce D. +2 more
openaire +2 more sources
Cyp26b1 expression in murine Sertoli cells is required to maintain male germ cells in an undifferentiated state during embryogenesis. [PDF]
PLoS ONE, 2009 In mammals, germ cells within the developing gonad follow a sexually dimorphic pathway. Germ cells in the murine ovary enter meiotic prophase during embryogenesis, whereas germ cells in the embryonic testis arrest in G0 of mitotic cell cycle and do not ...
Hui Li +4 more
doaj +1 more source
Cytokinesis in plant male meiosis [PDF]
Plant Signaling & Behavior, 2013 In somatic cell division, cytokinesis is the final step of the cell cycle and physically divides the mother cytoplasm into two daughter cells. In the meiotic cell division, however, pollen mother cells (PMCs) undergo two successive nuclear divisions without an intervening S-phase and consequently generate four haploid daughter nuclei out of one ...
De Storme, Nico, Geelen, Danny
openaire +2 more sources
Cytokinesis in Drosophila male meiosis [PDF]
Spermatogenesis, 2012 Cytokinesis separates the cytoplasm and the duplicated genome into two daughter cells at the end of cell division. This process must be finely regulated to maintain ploidy and prevent tumor formation. Drosophila male meiosis provides an excellent cell system for investigating cytokinesis.
Giansanti MG +4 more
openaire +4 more sources
Genome-wide crossover distribution in Arabidopsis thaliana meiosis reveals sex-specific patterns along chromosomes. [PDF]
PLoS Genetics, 2011 In most species, crossovers (COs) are essential for the accurate segregation of homologous chromosomes at the first meiotic division. Their number and location are tightly regulated.
Laurène Giraut +5 more
doaj +1 more source
Imaging plant germline differentiation within Arabidopsis flowers by light sheet microscopy [PDF]
, 2020 In higher plants, germline differentiation occurs during a relatively short period within developing flowers. Understanding of the mechanisms that govern germline differentiation lags behind other plant developmental processes.
Bainar, Petr +8 more
core +1 more source
A novel RNA-recognition-motif protein is required for premeiotic G1/S-phase transition in rice (Oryza sativa L.). [PDF]
PLoS Genetics, 2011 The molecular mechanism for meiotic entry remains largely elusive in flowering plants. Only Arabidopsis SWI1/DYAD and maize AM1, both of which are the coiled-coil protein, are known to be required for the initiation of plant meiosis.
Ken-Ichi Nonomura +9 more
doaj +1 more source