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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

The role of Pkdlll in the Establishment of the Mammalian Left Right Axis

Field, Sarah January 2009 (has links)
No description available.
92

Ciliary behaviour and signal transmission in the embryonic node : A computational fluid dynamics model

Chen, Duanduan January 2009 (has links)
No description available.
93

The role of the transcription factor Runx1 in the emerging mouse hematopoietic system

Santos, Ana Cristina January 2009 (has links)
No description available.
94

The role of Atrx in vertebrate development

Kwasniewska, Alexandra January 2009 (has links)
No description available.
95

Characterisation of the expression and function of sulfatases during Xenopus neural crest development

Guiral, Emily C. M. January 2008 (has links)
No description available.
96

The Bovine oviduct and early embryo development : Role of amino acids

Whitear, Sarah-Louise January 2009 (has links)
No description available.
97

Studies of the tissues and molecules that regulate the migration of cranial neural crest cells in the chicken embryo : roles of Midline 1 and retinoic acid

Latta, Elizabeth Janet January 2010 (has links)
No description available.
98

Studies on RX Gene Function and its Involvement in Ciona intestinalis Ocellus Differentiation

D. Aniello, Enrico January 2009 (has links)
No description available.
99

Molecular Bases of Pigment Cell Specification in Ciona intestinalis

Squarzoni, Paola January 2009 (has links)
No description available.
100

Characterisation of histoblast development in Drosophila Melanogaster

Lee, Ka Yan Claudia January 2007 (has links)
During metamorphosis, the larval form of a holometabolous insect is restructured to create the adult form. In Drosophila melanogaster, histoblasts are the precursor imaginal cells that generate the adult abdominal epithelium. Ecdysone triggers the histoblasts to proliferate, resulting in the expansion of the histoblast nests and the complete coverage of the abdomen. Concurrently, the larval epidermal cells (LEGs) are removed. Potentially, histoblast development can be a good system to study morphogenesis, cell migration, programmed cell death, ecdysone signaling and differentiation. However, to date, histoblast development has not been extensively studied. In this thesis, I characterised the pattern of histoblast nest expansion and fusion, .and explored behaviour of LECs during histoblast development with time-lapse analysis using novel genetic markers I identified in existing collections of Gal4 and GFP trap lines. During metamorphosis, histoblast nests spread and fuse in a strict spatial and temporal manner. Spreading is highly controlled and directed, as histoblast cells produce filopodial outgrONths and actively migrate towards the appropriate partner during fusion. LECs removal is concurrent with histoblast nest expansion. Not only are LECs removed at the histoblast migrating front as previously proposed (Madhavan and Madhavan, 1980), a significant amount of LECs located distant from histoblast nests are also destroyed. To further investigate the relationship between histoblast nest expansion and LEC removal, I disrupted cell death in LECs using genetic manipulation. I also studied the effect on the pattem of LEC removal in a mutant background which histoblast nests are severely reduced. The results from both studies suggest that histoblasts and LECs signal to one another to coordinate the events during histoblast development. Moreover, in order to explore the involvement of histoblast signalling during histoblast development, I disrupted endocytosis to inhibit histoblasts. The results point to the conclusion that signalling is important during histoblast development.

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