Search for dissertations about: "Ecdysozoa"

Found 4 swedish dissertations containing the word Ecdysozoa.

  2. 1. Aspects of priapulid development

    Author : Sofia A Wennberg; Graham Budd; Lars Holmer; Ralf Janssen; Prpic Nikola; Uppsala universitet; []
    Keywords : Earth sciences; Priapulus caudatus; Priapulida; Ecdysozoa; larval development; embryology; Geovetenskap;

    Abstract : The phylum Priapulida is a small group of marine worms that is allied with the nematodes, kinorhynchs, loriciferans and nematomorphs in a clade called the Cycloneuralia or Introverta. Together with the arthropods they are generally considered to comprise the Ecdysozoa, a clade of moulting animals. READ MORE

  4. 2. Investigation of Hox gene expression and Wnt-signalling in basally branching ecdysozoans

    Author : Mattias Hogvall; Ralf Janssen; Graham Budd; Andreas Hejnol; Andrew Peel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wnt signalling pathway; Hox genes; Fz receptors; Onychophora; Priapulida; Ecdysozoa; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi;

    Abstract : One of the most important processes in the development of an animal is the determination and patterning of the primary body axis, the anterior-posterior (AP) axis. After the AP axis has been established the embryo grows and elongates through posterior elongation. READ MORE

  5. 3. The Evolutionary Significance of Cambrian Ecdysozoan Trace Fossils

    Author : Giannis Kesidis; Graham Budd; Liam Herringshaw; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cambrian; trace fossil; Cruziana; Rusophycus; Treptichnus; Ecdysozoa;

    Abstract : The origin of most of the animal phyla is tied to the Cambrian explosion, a rapid diversification event that took place from about 540 million years ago. This diversification is coupled with a great number of concurrent metazoan body plan innovations such as the development of the coelom, antagonistic muscles and a through-gut. READ MORE

  6. 4. Analysis of Wnt ligands and Fz receptors in Ecdysozoa : Investigating the evolution of segmentation

    Author : Mattias Hogvall; Ralf Janssen; Graham Budd; Andreas Hejnol; Javier Ortega-Hernández; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Segmentation; Onychophora; Wnt genes; Frizzled; Hox genes; Priapulida; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi;

    Abstract : .... READ MORE