Results 381 to 390 of about 316,768 (413)
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Wnt signaling in oncogenesis and embryogenesis--a look outside the nucleus.
Science, 2000The Wnt cell-cell signaling pathway plays a critical and evolutionarily conserved role in directing cell fates during embryogenesis. In addition, inappropriate activation of the Wnt signal transduction pathway plays a role in a variety of human cancers ...
M. Peifer, P. Polakis
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Insights from Proteomic Studies into Plant Somatic Embryogenesis
Proteomics, 2018Somatic embryogenesis is a biotechnological approach mainly used for the clonal propagation of different plants worldwide. In somatic embryogenesis, embryos arise from somatic cells under appropriate culture conditions.
A. Heringer +2 more
semanticscholar +1 more source
1967
Publisher Summary This chapter focuses on the cestode gametogenesis and embryonic development up to the formation of the oncosphere. A common basic pattern of embryogenesis in pseudophyllideans and cyclophyllideans representing the main groups in Cestoda is discussed.
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Publisher Summary This chapter focuses on the cestode gametogenesis and embryonic development up to the formation of the oncosphere. A common basic pattern of embryogenesis in pseudophyllideans and cyclophyllideans representing the main groups in Cestoda is discussed.
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Microspore Embryogenesis in Citrus
2021This chapter deals with microspore embryogenesis in Citrus. Microspore embryogenesis allows to induce immature gametes (microspores) and to deviate them, in this case, the male one, from the normal gametophytic developmental route in the direction of the sporophytic one, yielding homozygous organisms (embryos and plants).
Yahyaoui E, Germanà Maria
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Somatic Embryogenesis in Larix
1995The genus Larix has 10 species and many varieties and hybrids. They are native in the cool-temperate and boreal regions of the northern hemisphere and in the Himalaya mountains (Gower & Richards, 1990). An outstanding characteristic of Larix is that it is the only conifer genus that is deciduous.
Bonga, J.M. +3 more
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Epigenetic silencing in embryogenesis
Experimental Cell Research, 2005Transcription profiling of early embryos emphasizes that differential gene expression is a fundamental control mechanism of development. Precise regulatory mechanisms operate on a background of epigenetic changes in chromatin composition, modification, and architecture that are integral for the development of a pluripotent embryo into an adult.
Sari Pennings +4 more
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SOMATIC EMBRYOGENESIS IN CHESTNUT
Acta Horticulturae, 1990Immature cotyledons of 2 Castanea sativa cultivars and 2 C. crenata X C. sativa hybrids were cultured on 2 media supplemented with various growth regulators. Somatic embryos were obtained only with cv.
M. C. Piagnani, T. Eccher
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A genetic screen for mutations affecting embryogenesis in zebrafish.
Development, 1996Systematic genome-wide mutagenesis screens for embryonic phenotypes have been instrumental in the understanding of invertebrate and plant development.
W. Driever +11 more
semanticscholar +1 more source
2018
The embryonic heart forms in anterior lateral splanchnic mesoderm and is derived from Mesp1-expressing progenitor cells. During embryonic folding, the earliest differentiating progenitor cells form the linear heart tube in the ventral midline. The heart tube extends in length and loops to the right as new myocardium is progressively added at the venous
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The embryonic heart forms in anterior lateral splanchnic mesoderm and is derived from Mesp1-expressing progenitor cells. During embryonic folding, the earliest differentiating progenitor cells form the linear heart tube in the ventral midline. The heart tube extends in length and loops to the right as new myocardium is progressively added at the venous
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2009
Publisher Summary This chapter presents a generalized view of some of the more regular features of insect development. Embryogenesis is the process by which a larva or a juvenile is built from a single egg. The fertilized egg divides to produce hundreds of cells that grow, move, and differentiate into all the organs and tissues required to form a ...
Lisa Nagy, Miodrag Grbić
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Publisher Summary This chapter presents a generalized view of some of the more regular features of insect development. Embryogenesis is the process by which a larva or a juvenile is built from a single egg. The fertilized egg divides to produce hundreds of cells that grow, move, and differentiate into all the organs and tissues required to form a ...
Lisa Nagy, Miodrag Grbić
openaire +2 more sources