Matches in SemOpenAlex for { <https://semopenalex.org/work/W1907740031> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1907740031 endingPage "74" @default.
- W1907740031 startingPage "57" @default.
- W1907740031 abstract "The germ plasm in the egg is paritioned between the first four blastomeres by the first two cleavage planes. Although the blastomeres divide 10-11 times through the rest of cleavage, as shown by reduction in their size, the number of presumptive primordial germ cells (p.p. germ cells) does not increase significantly. During and as a result of the formation of the first two cleavage planes, the germ plasm aggregates together and moves towards and along the cleavage furrows. At subsequent mitoses, the germ plasm is localized at one of the poles of the spindle and hence is segregated to only one of the daughter cells, thus explaining how mitosis occurs without increase in the number of cells with germ plasm. Early in gastrulation, the germ plasm moves to a perinuclear position, therefore ensuring that as mitosis continues, both daughter cells receive germ plasm and the number of p.p. germ cells increases. Direct counts of the number of p.p. germ cells and measurements of their volume suggest that they divide twice between early gastrula and the stage at which they leave the endoderm. The p.p. germ cells behave similarly to the adjacent endodermal cells until they begin to migrate to the gonad, an event which may represent the first overt signs of differentiation. Measurements of the volume of germ plasm suggest that there is no change through cleavage. The general conclusion is drawn that during cleavage, the morphogenetic determinant germ plasm is segregated to a few cells by the normal processes of cleavage and that subsequently these cells undergo a small number of cloning divisions which are contemporaneous with the first signs of differentiation." @default.
- W1907740031 created "2016-06-24" @default.
- W1907740031 creator A5032162978 @default.
- W1907740031 creator A5043816752 @default.
- W1907740031 date "1975-02-01" @default.
- W1907740031 modified "2023-09-29" @default.
- W1907740031 title "Quantitative studies of germ plasm and germ cells during early embryogenesis of Xenopus laevis." @default.
- W1907740031 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/1151270" @default.
- W1907740031 hasPublicationYear "1975" @default.
- W1907740031 type Work @default.
- W1907740031 sameAs 1907740031 @default.
- W1907740031 citedByCount "39" @default.
- W1907740031 countsByYear W19077400312012 @default.
- W1907740031 countsByYear W19077400312013 @default.
- W1907740031 countsByYear W19077400312014 @default.
- W1907740031 countsByYear W19077400312015 @default.
- W1907740031 countsByYear W19077400312016 @default.
- W1907740031 countsByYear W19077400312017 @default.
- W1907740031 countsByYear W19077400312018 @default.
- W1907740031 countsByYear W19077400312021 @default.
- W1907740031 countsByYear W19077400312022 @default.
- W1907740031 crossrefType "journal-article" @default.
- W1907740031 hasAuthorship W1907740031A5032162978 @default.
- W1907740031 hasAuthorship W1907740031A5043816752 @default.
- W1907740031 hasConcept C104317684 @default.
- W1907740031 hasConcept C129536746 @default.
- W1907740031 hasConcept C151730666 @default.
- W1907740031 hasConcept C175156509 @default.
- W1907740031 hasConcept C190446060 @default.
- W1907740031 hasConcept C194058213 @default.
- W1907740031 hasConcept C196843134 @default.
- W1907740031 hasConcept C2779122487 @default.
- W1907740031 hasConcept C2779535977 @default.
- W1907740031 hasConcept C2780258238 @default.
- W1907740031 hasConcept C43369102 @default.
- W1907740031 hasConcept C48221581 @default.
- W1907740031 hasConcept C54355233 @default.
- W1907740031 hasConcept C68760520 @default.
- W1907740031 hasConcept C86803240 @default.
- W1907740031 hasConcept C87073359 @default.
- W1907740031 hasConcept C93304396 @default.
- W1907740031 hasConcept C95444343 @default.
- W1907740031 hasConceptScore W1907740031C104317684 @default.
- W1907740031 hasConceptScore W1907740031C129536746 @default.
- W1907740031 hasConceptScore W1907740031C151730666 @default.
- W1907740031 hasConceptScore W1907740031C175156509 @default.
- W1907740031 hasConceptScore W1907740031C190446060 @default.
- W1907740031 hasConceptScore W1907740031C194058213 @default.
- W1907740031 hasConceptScore W1907740031C196843134 @default.
- W1907740031 hasConceptScore W1907740031C2779122487 @default.
- W1907740031 hasConceptScore W1907740031C2779535977 @default.
- W1907740031 hasConceptScore W1907740031C2780258238 @default.
- W1907740031 hasConceptScore W1907740031C43369102 @default.
- W1907740031 hasConceptScore W1907740031C48221581 @default.
- W1907740031 hasConceptScore W1907740031C54355233 @default.
- W1907740031 hasConceptScore W1907740031C68760520 @default.
- W1907740031 hasConceptScore W1907740031C86803240 @default.
- W1907740031 hasConceptScore W1907740031C87073359 @default.
- W1907740031 hasConceptScore W1907740031C93304396 @default.
- W1907740031 hasConceptScore W1907740031C95444343 @default.
- W1907740031 hasIssue "1" @default.
- W1907740031 hasLocation W19077400311 @default.
- W1907740031 hasOpenAccess W1907740031 @default.
- W1907740031 hasPrimaryLocation W19077400311 @default.
- W1907740031 hasRelatedWork W1543543124 @default.
- W1907740031 hasRelatedWork W1600542127 @default.
- W1907740031 hasRelatedWork W1907740031 @default.
- W1907740031 hasRelatedWork W199085532 @default.
- W1907740031 hasRelatedWork W1992035717 @default.
- W1907740031 hasRelatedWork W2042786588 @default.
- W1907740031 hasRelatedWork W2144083847 @default.
- W1907740031 hasRelatedWork W2217833609 @default.
- W1907740031 hasRelatedWork W2341641624 @default.
- W1907740031 hasRelatedWork W2092907865 @default.
- W1907740031 hasVolume "33" @default.
- W1907740031 isParatext "false" @default.
- W1907740031 isRetracted "false" @default.
- W1907740031 magId "1907740031" @default.
- W1907740031 workType "article" @default.