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 1-5 di 98
Pagina 11
... pole. During OS2, the myoplasm moves to the future posterior pole of the egg, where it spreads laterally to form the yellow crescent (Fig. 5B-C). Yellow crescent formation is mediated by the aster microtubules, which polymerize around ...
... pole. During OS2, the myoplasm moves to the future posterior pole of the egg, where it spreads laterally to form the yellow crescent (Fig. 5B-C). Yellow crescent formation is mediated by the aster microtubules, which polymerize around ...
Pagina 12
... cells synthesize acetylcholinesterase (AChE), muscle actin (Fig. 6), and ... cells fated to form endoderm produce alkaline phosphatase (AP) (Whittaker, 1977) ... pole, in unfertilized eggs. OS1 is completed 30 min after fertilization, OS2 ...
... cells synthesize acetylcholinesterase (AChE), muscle actin (Fig. 6), and ... cells fated to form endoderm produce alkaline phosphatase (AP) (Whittaker, 1977) ... pole, in unfertilized eggs. OS1 is completed 30 min after fertilization, OS2 ...
Pagina 14
... pole region, where they mix with transparent cytoplasm to form the ectoplasm. Evidence for the existence of epidermal determinants was provided by blastomere fusion experiments. In these FIG. 7 The fusion method for transplantation of ...
... pole region, where they mix with transparent cytoplasm to form the ectoplasm. Evidence for the existence of epidermal determinants was provided by blastomere fusion experiments. In these FIG. 7 The fusion method for transplantation of ...
Pagina 16
... cells (Ueki et al., 1991). The key feature of this experiment is that animal ... cells at the 64-cell stage (Ishida et al., 1996). HrEpiC mRNA appeared at the ... pole. During ooplasmic segregation, the muscle determinants are segregated ...
... cells (Ueki et al., 1991). The key feature of this experiment is that animal ... cells at the 64-cell stage (Ishida et al., 1996). HrEpiC mRNA appeared at the ... pole. During ooplasmic segregation, the muscle determinants are segregated ...
Pagina 17
... cells, are located at the posterior pole of the embryo. The fate of the B5.2 cells is complex, with contributions to endoderm, muscle, and mesenchyme. By the 64-cell stage, however, the B7.6 cells are fate restricted to produce cells in ...
... cells, are located at the posterior pole of the embryo. The fate of the B5.2 cells is complex, with contributions to endoderm, muscle, and mesenchyme. By the 64-cell stage, however, the B7.6 cells are fate restricted to produce cells in ...
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 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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