Results 21 to 30 of about 37,794 (252)

Nuclear translocation of MTL5 from cytoplasm requires its direct interaction with LIN9 and is essential for male meiosis and fertility. [PDF]

open access: yesPLoS Genetics, 2021
Meiosis is essential for the generation of gametes and sexual reproduction, yet the factors and underlying mechanisms regulating meiotic progression remain largely unknown.
Xingxia Zhang   +10 more
doaj   +2 more sources

Exploring Reproductive Timing in Olive Tree: Male Meiosis and Anthesis Events [PDF]

open access: yesPlants
The timing of male meiosis plays a pivotal role in ensuring successful pollination and may represent a critical window during which environmental stressors can significantly impact reproductive outcomes.
Emma Tedeschini   +2 more
doaj   +2 more sources

METTL16 is Required for Meiotic Sex Chromosome Inactivation and DSB Formation and Recombination during Male Meiosis [PDF]

open access: yesAdvanced Science
Meiosis in males is a critical process that ensures complete spermatogenesis and genetic diversity. However, the key regulators involved in this process and the underlying molecular mechanisms remain unclear.
Lisha Yin   +16 more
doaj   +2 more sources

Meiosis in the Male Periplaneta americana [PDF]

open access: yesNature, 1963
CYTOLOGY of the common cockroach Periplaneta americana (Blattidae) dates back to 19091, and yet recent re-examination has not only brought to light interesting details, but also much controversy2–8. It was therefore felt necessary to examine the locally available species of cockroaches with the view of understanding the intricacies of the problem ...
M. R. RAJASEKARASETTY   +1 more
openaire   +2 more sources

Defective callose walls and cell plates during abnormal meiosis cause male-sterility in the oat mutant zbs1

open access: yesJournal of Integrative Agriculture, 2016
: During meiosis in flowering plants, degradation of the callose wall in tetrads releases newly produced microspores, which develop into mature pollen grains.
Xiao SHI   +7 more
doaj   +3 more sources

ATR is a multifunctional regulator of male mouse meiosis [PDF]

open access: yesNature 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   +7 more sources

Uncharted territories: Solving the mysteries of male meiosis in flies. [PDF]

open access: yesPLoS Genet
The segregation of homologous chromosomes during meiosis typically requires tight end-to-end chromosome pairing. However, in Drosophila spermatogenesis, male flies segregate their chromosomes without classic synaptonemal complex formation and without ...
Lee L, Rosin LF.
europepmc   +2 more sources

Expression profiles of meiotic genes in male vs. female gonads and gametes: Insights into fertility issues

open access: yesFrontiers in Genetics, 2023
Gametes are specialized cells that, at fertilization, give rise to a totipotent zygote capable of generating an entire organism. Female and male germ cells undergo meiosis to produce mature gametes; however, sex-specific events of oogenesis and ...
Marília Körbes Rockenbach   +11 more
doaj   +1 more source

Meiosis in male Drosophila [PDF]

open access: yesSpermatogenesis, 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]

open access: yesPLoS 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

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