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BRDT is an essential epigenetic regulator for proper chromatin organization, silencing of sex chromosomes and crossover formation in male meiosis
(Public Library Science, 2018)
The double bromodomain and extra-terminal domain (BET) proteins are critical epigenetic
readers that bind to acetylated histones in chromatin and regulate transcriptional activity
and modulate changes in chromatin structure ...
Meiosis en mutantes desinápticos con restitución cromosómica en rhoeo spathacea (commelinaceae)
(Universidad Nacional de Colombia Sede Palmira, 2008-01-07)
El estudio se llevó a cabo en recolectas de Rhoeo spathacea realizadas en Veracruz, Chiapas, Tabasco, Yucatán, Quintana Roo y Michoacán, México. Las plantas presentaron número diploide de cromosomas (2n=12) en mitosis. En ...
Differential localization of α' and β subunits of protein kinase CK2 during rat spermatogenesis
(2009)
Protein kinase CK2 is a serine/threonine kinase expressed in organisms from yeast to human and is composed of a catalytic subunit (α or α') and a regulatory subunit (β) forming a holoenzyme with the possible subunit ...
Number and nuclear localisation of nucleoli in mammalian spermatocytes
(2004)
In seven mammalian species, including man, the position and number of nucleoli in pachytene spermatocyte nuclei were studied from electron microscope (EM) nuclear sections or bivalent microspreads. The number and position ...
The robertsonian phenomenon in the house mouse: mutation, meiosis and speciation
(Springer Science and Business Media Deutschland GmbH, 2014)
© 2014, Springer-Verlag Berlin Heidelberg. Many different chromosomal races with reduced chromosome number due to the presence of Robertsonian fusion metacentrics have been described in western Europe and northern Africa, ...
Alterations in chromosomal synapses and DNA repair in apoptotic spermatocytes of Mus m. domesticus
(Pagepress, 2016)
We investigated whether apoptotic spermatocytes from the mouse Mus m. domesticus presented alterations in chromosomal synapses and DNA repair. To enrich for apoptotic spermatocytes, the scrotum's temperature was raised by ...
Meiotic behavior of a complex hexavalent in heterozygous mice for Robertsonian translocations: insights for synapsis dynamics
(Springer Science and Business Media Deutschland GmbH, 2019)
Natural populations of the house mouse Mus musculus domesticus show great diversity in chromosomal number due to the presence of chromosomal rearrangements, mainly Robertsonian translocations. Breeding between two populations ...
The program of sex chromosome pairing in meiosis is highly conserved across marsupial species: Implications for sex chromosome evolution
(GENETICS, 2005-06)
Marsupials present a series of genetic and chromosomal features that are highly conserved in very distant species. One of these features is the absence of a homologous region between X and Y chromosomes. According to this ...
Involvement of synaptonemal complex proteins in sex chromosome segregation during marsupial male meiosis
(PUBLIC LIBRARY SCIENCE, 2006-08)
Marsupial sex chromosomes break the rule that recombination during first meiotic prophase is necessary to ensure reductional segregation during first meiotic division. It is widely accepted that in marsupials X and Y ...
Comportamiento meiótico y descripción morfológica del polen de pronto alivio
(Universidad Nacional de Colombia Sede Palmira, 2006-01-04)
Este estudio fue realizado en la Universidad Nacional de Colombia y el Centro Internacional de Agricultura Tropical CIAT, para evaluar la meiosis se utilizaron las metodologías adaptadas por Dempsey (1993). Se observaron ...