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  • fate
  • However, the experiments that have led to this conclusion could not have taken into account either the spatial origin of individual blastomeres or the spatial allocation and fate of their progeny. (biologists.org)
  • The recording, of the entire development from embryogenesis until hatching, allowed us to analyze the fate of single descendants from early blastomeres up to germ layer formation and tissue development. (biologists.org)
  • To generate a modern fate map for C. teleta , we injected 1,1'-dioctadecyl-3,3,3'3'-tetramethylindocarbocyanine perchlorate (DiI) into individual identified blastomeres through fourth-quartet micromere formation. (biomedcentral.com)
  • Our results corroborate previous observations from classic studies, and show a number of similarities with other spiralian fate maps, including unique and stereotypic fates for individual blastomeres, presence of four discrete body domains arising from the A, B, C and D cell quadrants, generation of anterior ectoderm from first quartet micromeres, and contributions to trunk ectoderm and ventral nerve cord by the 2d somatoblast. (biomedcentral.com)
  • And the fate of the blastomeres is not yet determined. (wikipedia.org)
  • micromeres
  • In early development there is an apparent lack of a hyaline layer, irregularly arranged blastomeres , variable numbers of micromeres, and an absence of primary mesenchyme (Schroeder, 1981). (thefreedictionary.com)
  • vitro
  • Inability of mouse blastomere nuclei transferred to enucleated zygotes to support development in vitro. (jax.org)
  • cell
  • To answer this question, Enkui Duan and colleagues performed single-cell transcriptional analysis of human and mouse blastomeres (p. 3468 ). (biologists.org)
  • This study shows that symmetry breaking leading to lineage specification is a continuous process that emerges as early as the two-cell stage, before morphological differences between blastomeres are detectable. (biologists.org)
  • We find that one of these four-cell stage blastomeres that inherits some vegetal membrane marked in the previous cleavage cycle tends to contribute to mural trophectoderm. (biologists.org)
  • However, when such individual four-cell blastomeres are surrounded by blastomeres from random positions, they are able to contribute to all embryonic lineages. (biologists.org)
  • This study also clarified the relationship between the order of blastomere division from the two- to four-cell stage, and the polarity of this embryonic-abembryonic axis ( Piotrowska and Zernicka-Goetz, 2002 ). (biologists.org)
  • Blastomere cell structure. (sciencephoto.com)
  • Coloured scanning electron micrograph of the cell structure of blastomeres in the 4-cell embryo. (sciencephoto.com)
  • In 1959 Tarkowski showed that a single blastomere isolated from a 2-cell stage mouse embryo is fully able to develop and the result is healthy and fertile mouse (Tarkowski, 1959, Nature). (wikipedia.org)
  • In fish, waves of calcium released direct the process of cell division by coordinating the mitotic apparatus with the actin cytoskeleton, propagating cell division along the surface, assists in deepening the cleavage furrow, and finally heals the membrane after separation of blastomeres. (wikipedia.org)
  • species
  • During the segmentation, cytoplasmic determinants are distributed among the blastomeres, at different times depending on the species and on the type of determinant. (wikipedia.org)
  • among
  • Among multiple pregnancies (4229 neonates), neonates from the blastomere loss group were at an increased risk of being small for gestational age (aOR = 1.50, 95% CI 1.00-2.25) compared to those from the intact group. (biomedcentral.com)