The blood/vascular system in a phylogenetic perspective

Article Abstract:

The homologs between Drosophila organs and their vertebrate counterparts is investigated by surveying pertinent aspects of vascular structure and development in different invertebrate phyla, which might help in revealing the ancestral condition of the vascular system. The evolutionary scenarios that derive the structure of the cardiovascular system of extant animal taxa from the ancestral condition are useful in homologies that are based on molecular similarities.

United States, Phylogeny, Vascular system of plants, Plant vascular systems

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Notch and affinity boundaries in Drosophila

Article Abstract:

Two reports analyze the role of the Notch signaling pathway in generation of an affinity boundary in the Drosophila wing. The first report analyzes the connection between Notch and the actin cytoskeleton and the second report analyzes the differential requirements of Notch and the transcription factor Supressor of Hairless in generating the affinity boundary.

Affinity labeling

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Haematopoietic stem cell niche in Drosophila

Article Abstract:

The Drosophila haematopoietic niche and signal transduction pathways that are involved in the maintenance of haematopoietic precursors are described. The analysis has highlighted the specific interactions between haematopoietic progenitors and their microenvironment.

Environmental aspects, Hematopoietic stem cells, Transduction, Transduction (Genetics)

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