Partial characterization of "primordial germ cell-forming activity" localized in vegetal pole cytoplasm in anuran eggs.
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چکیده
منابع مشابه
Xdazl is an RNA component of Xenopus germ plasm and encodes an RNA-binding protein that can act as a functional homologue of Drosophila boule. boule
In most sexually reproducing organisms, the gametes are derived from a precursor stem cell population, the primordial germ cells (PGCs). These cells originate extragonadally early in development and migrate through somatic tissues to reach the developing gonads. Once ensheathed by somatic gonad cells, PGCs divide and differentiate into definitive gametes. Discovering how the PGCs are initially ...
متن کاملXdazl is an RNA component of Xenopus germ plasm and encodes an RNA-binding protein that can act as a functional homologue of Drosophila boule. boule is required
In most sexually reproducing organisms, the gametes are derived from a precursor stem cell population, the primordial germ cells (PGCs). These cells originate extragonadally early in development and migrate through somatic tissues to reach the developing gonads. Once ensheathed by somatic gonad cells, PGCs divide and differentiate into definitive gametes. Discovering how the PGCs are initially ...
متن کاملSterility and partial sterility in the South African clawed toad following the pricking of the egg.
Bounoure (1934) first described the presence in the egg of the frog Rana temporaria of a special cytoplasmic differentiation, which he termed the 'ger-minal cytoplasm'. He was able to trace the developmental history of this plasm as it moved from its original position just under the cortex of the vegetal pole of the fertilized egg, to its inclusion in a number of cells of the early gastrula end...
متن کاملInvestigations of the germ-plasm in relation to nuclear transplantation.
THE origin of the germ-cells has been extensively investigated in both invertebrates and vertebrates. In invertebrates it has been traced to the early cleavage of the zygote, e.g. in such forms as Ascaris megalocephala (Boveri, 1887) and Sciara (Metz, 1938). Within the vertebrate group the cases in which primordial germ-cells have been detected in cleavage stages are very few. Eigenmann (1891) ...
متن کاملHigh-throughput analysis reveals novel maternal germline RNAs crucial for primordial germ cell preservation and proper migration.
During oogenesis, hundreds of maternal RNAs are selectively localized to the animal or vegetal pole, including determinants of somatic and germline fates. Although microarray analysis has identified localized determinants, it is not comprehensive and is limited to known transcripts. Here, we utilized high-throughput RNA-sequencing analysis to comprehensively interrogate animal and vegetal pole ...
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عنوان ژورنال:
- Journal of embryology and experimental morphology
دوره 39 شماره
صفحات -
تاریخ انتشار 1977