Cell Lineage and Embryo PatterningElsevier, 13 dic 2000 - 623 pagine International Review of Cytology presents current advances and comprehensive reviews in cell biology, both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.This volume brings together current information on the localization and roles of RNAs in cell-lineage determination and subsequent patterning in embryonic development. Guest co-editor Lawrence Etkin is one of the leading researchers in molecular genetics of Xenopus. Key Features* A number of important concepts are discussed, including:* How polarity is established during oogenesis* How germ cell determinants become organized in the establishment of the germ cell lineage* Different strategies used by organisms to establish the germ cell lineage* Similarities and differences between the mechanisms used in embryonic patterning* The mechanisms and machinery by which molecules such as RNA become asymmetrically segregated* The use of similar signaling pathways in patterning of the dorsal-ventral and right-left asymmetries, embryonic germ layers, limb, and nervous system* The link between fundamental biological processes such as RNA translation and localization in the regulation of axis specification |
Dall'interno del libro
Risultati 6-10 di 64
Pagina 6
... right and left sides of the embryo. The first two cells are the AB2 cell, located on the left side of the embryo, and the AB2 cell, located on the right side of the embryo (Fig. 3A). The second cleavage passes through the animal-vegetal ...
... right and left sides of the embryo. The first two cells are the AB2 cell, located on the left side of the embryo, and the AB2 cell, located on the right side of the embryo (Fig. 3A). The second cleavage passes through the animal-vegetal ...
Pagina 26
... (Left) The completion of OS1 results in epidermal and vegetal organization centers. (Right) The completion of OS2 results in the appearance of a posterior organization center. (Bottom, right) Later, in the B-line blastomeres, the muscle ...
... (Left) The completion of OS1 results in epidermal and vegetal organization centers. (Right) The completion of OS2 results in the appearance of a posterior organization center. (Bottom, right) Later, in the B-line blastomeres, the muscle ...
Pagina 31
... (Left) Phylogeny according to Hadfield et al. (1995) and Jeffery et al. (1999). (Right) Presence of myoplasm (p58) in the oocyte or mature egg. Anural species are boxed. A. Localized mRNAs One of the first searches for localized mRNAs ...
... (Left) Phylogeny according to Hadfield et al. (1995) and Jeffery et al. (1999). (Right) Presence of myoplasm (p58) in the oocyte or mature egg. Anural species are boxed. A. Localized mRNAs One of the first searches for localized mRNAs ...
Pagina 37
... (Left) Intact unfertilized egg with nucleus. (Middle) Centrifugation of unfertilized eggs in the presence of cytochalasin results in the production of anucleate black, clear, and brown fragments and nucleate red fragments. (Right) After ...
... (Left) Intact unfertilized egg with nucleus. (Middle) Centrifugation of unfertilized eggs in the presence of cytochalasin results in the production of anucleate black, clear, and brown fragments and nucleate red fragments. (Right) After ...
Pagina 39
... left to right: previtellogenic oocyte, vitellogenic oocyte, unfertilized egg, fertilized egg after completion of OS1 ... left of sectioning through A- and B-line blastomeres, b- and B-line blastomeres, and b-, A-, and B-line blastomeres ...
... left to right: previtellogenic oocyte, vitellogenic oocyte, unfertilized egg, fertilized egg after completion of OS1 ... left of sectioning through A- and B-line blastomeres, b- and B-line blastomeres, and b-, A-, and B-line blastomeres ...
Sommario
Patterning of the Embryo | 231 |
Mechanisms to Establish Polarity and Initiate Cell Fate Determination | 519 |
Index | 609 |
Parole e frasi comuni
actin activity addition animal appears ascidian associated asymmetric axis binding Biol blastomeres catenin chick cleavage complex components contains cyst cytoplasmic defects determinants differentiation division domain dorsal Drosophila early ectoderm ectopic effects elegans element embryo encodes endoderm establishment et al evidence experiments expression factor fate formation function gastrulation gene gene expression Genet germ cells germline granules growth identified important indicate induce inhibition initiation interactions involved known later left-right levels limb lineage localization markers maternal mechanisms mediated mesoderm migration molecular mouse mRNA muscle mutants Nature neural tube normal observed oocyte oogenesis organization pathway patterning PGCs plasm plate polar posterior present produce proliferation protein receptor region regulation repression role sequence shown signaling similar specification stage stem cell structure studies suggest tion tissue transcription factor translational vegetal vertebrate Xenopus
Brani popolari
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Pagina 178 - De Strooper, B., Annaert, W., Cupers, P., Saftig, P., Craessaerts, K., Mumm, JS, Schroeter, EH, Schrijvers, V., Wolfe, MS, Ray, WJ, Goate, A., and Kopan, R.
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Pagina 342 - Moon, R. T. (1997). Establishment of the dorso-ventral axis in Xenopus embryos is presaged by early asymmetries in beta-catenin that are modulated by the Wnt signaling pathway.
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