Meiosis 1: Meiosis 1 splits a pair of homologous chromosomes and converts a diploid cell to a haploid cell. The following phases help explain the various stages of meiosis 1: Prophase 1: Prophase I in meiosis is the most complicated prophase repetition that occurs in both plant and animal c...
In 1935, Pincus and Enzmann were the first to show that the removal of prophase I arrested rabbit oocytes from their follicular environment resulted in the spontaneous resumption of meiosis (Pincus and Enzmann, 1935). This finding supported a model where the surrounding somatic cells regulated maint...
Formation of an oocyte involves a specialized cell division termed meiosis. In meiotic prophase I (the initial stage of meiosis), chromosomes undergo elaborate events to ensure the proper segregation of their chromosomes into gametes. These events include processes leading to the formation of a cross...
ProphaseI is the defining stage of meiosis in that it is unique from mitotic prophase and in that it encompasses many of the I unique features of meiosis, including formation of thesynaptonemal complex(SC), pairing of homologous (maternal and paternal) chromosomes, and formation of chiasmata be...
region of the putative protein (Fig. 1a). We thus decided to term this geneMeiocforMeiosis specific with coiled-coil domain. Figure 1:Meiocis a conserved and meiosis prophase I-specific gene. (a) Schematic representation of MEIOC proteins in the indicated species (see alsoSupplementary Fig. ...
Analysis of meiosis prophase I process in SPDYA-binding-deficient SUN1 mutant mice reveals that the SUN1-SPDYA interaction is required for the telomere-LINC complex connection and the assembly of a ring-shaped telomere supramolecular architecture at the nuclear envelope, which is critical for ...
Formation of an oocyte involves a specialized cell division termed meiosis. In meiotic prophase I (the initial stage of meiosis), chromosomes undergo elaborate events to ensure the proper segregation of their chromosomes into gametes. These events include processes leading to the formation of a cross...
MeiosispericentromererDNARhoeotranslocationsA study on the organization of prophase I chromatin in a PTH (permanent translocation heterozygosity) plant -Rhoeo spathacea was carried out. The sequential DAPI/AMD-FISH technique showed that nuclear polarization and centromere clustering during preleptotene-pachy...
MeiosisOocyteSIRT7SirtuinSynapsisSirtuins are NAD+-dependent protein deacylases and ADP-ribosyltransferases that are involved in a wide range of cellular processes including genome homeostasis and metabolism. Sirtuins are expressed in human and mouse oocytes yet their role during female gamete development...
Electron microscopy analysis of the synaptonemal complex was carried out for the first time in Cricetulus barabensis pseudogriseus, fertile F1 hybrids of C. b. pseudogriseus C. b. griseus, C. b. griseus C. b. barabensis, and back-cross hybrids C. b. pseudogriseus (F1C. b. pseudogriseus...