2013) A replication-dependent passive mechanism modulates DNA demethylation in mouse primordial germ cells
The fine morphology of mouse primordial germ cells
in extragonadal locations.
This is accomplished by the specific expression of these markers as they are switched on or off according to the stage of differentiation, thus permitting a better identification of the tumor, which in germ cell tumors is determined by a progressive flow from primordial germ cells
to extraembryonal and somatic malignancies.
The localized mRNA includes vasa mRNA, which is a well-known marker of the primordial germ cells
(Schup-bach and Wieschaus, 1986; Fujimura and Takamura, 2000).
Towards the use of primordial germ cells
for germline modification.
2007), the migration of the primordial germ cells
starts between the 2nd and 3rd day of incubation, and from the 5th day begins testicular morphogenesis and differentiation of the primordial germ cells
In dioecious, the differentiation of primordial germ cells
into male or female gametes seems to be controlled by a neurohormone, the androgenic factor.
Hermaphroditism among dioecious Tagelus plebeius (Lightfoot, 1786) (Mollusca, Psammobiidae) and Iphigenia brasiliana (Lamarck, 1818) (Mollusca, Donacidae) on the Cachoeira River Estuary, Ilheus, Bahia, Brazil/Hermafroditismo nos moluscos dioicos Tagelus plebeius (Lightfoot, 1786) (Mollusca, Psammobiidae) e Iphigenia brasiliana (Lamarck, 1818) (Mollusca, Donacidae) na regiao estuarina do Rio Cachoeira, Ilheus, Bahia, Brasil
These results indicated maturation of the primordial germ cells
to haploid male gametes - called IVD sperm - characterised by containing half a chromosome set (23 chromosomes).
Primordial germ cells
have well-defined pseudopodia (temporary protoplasmic processes) similar to amoeba, and move via amoeboid action.
Genninomas, which are fairly treatable, arise from primordial germ cells
that fail to migrate correctly in embryogenesis.
Using a form of vitamin A, the scientists coaxed the mesenchymal cells to become primordial germ cells
(PGCs) - the first stage in the genesis of sperm.
Scientists identified developing stem cells containing the genetic signature of primordial germ cells
, the ancestors of eggs and sperm