Formation of the female pronucleus and reorganization and disassembly of the first interphase cytoskeleton in the egg of the glossiphoniid leech Theromyzon rude

Article Abstract:

The partition and isolation of the sperm-derived centrosome occurs at the first interphase in the newly fertilized egg of a leech. The female pronucleus is developed at the centrally situated perinucleus plasma domain through fusion and reframing of karyomeres obtained from the animal pole at the centripetal ooplasmic flow. The wrinkling and rearrangement of the microtubules and microfilaments along polar rings and meridional bands are followed by the disassembly of the ectoplasmic monaster fibers.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Maternal expression of a NANOS homolog is required for early development of the leech Helobdella robusta

Article Abstract:

The role of NANOS homolog gene acquired by maternal inheritance in embryonic development in Helobdella robusta (leech) is studied.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Asymmetrization of first cleavage by transient disassembly of one spindle pole aster in the leech Helobdella robusta

Article Abstract:

The asymmetrical cell division that occurs during embryonic development of Helobdella robusta (leech) is studied.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: