Search for dissertations about: "Biology with specialization in Animal Development"

Showing result 1 - 5 of 11 swedish dissertations containing the words Biology with specialization in Animal Development.

  1. 1. Thinking in water : Brain size evolution in Cichlidae and Syngnathidae

    Author : Masahito Tsuboi; Niclas Kolm; Andrew Iwaniuk; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; brain evolution; phylogenetic comparative method; the expensive tissue hypothesis; cichlid; pipefish; seahorse; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Abstract : Brain size varies greatly among vertebrates. It has been proposed that the diversity of brain size is produced and maintained through a balance of adaptations to different types and levels of cognitive ability and constraints for adaptive evolution. READ MORE

  2. 2. Sex in Murky Waters : Anthropogenic Disturbance of Sexual Selection in Pipefish

    Author : Josefin Sundin; Anders Berglund; Gunilla Rosenqvist; Bob Wong; Uppsala universitet; []
    Keywords : Mating system; Mate choice; Courtship; Eutrophication; Turbidity; Hypoxia; Ocean acidification; Syngnathidae; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Abstract : Animals experience variation in their environment because of natural changes. However, due to anthropogenic disturbance, the speed and severity of these changes have recently increased. This thesis investigates how reproductive behaviours may be affected by human induced environmental change. READ MORE

  3. 3. 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 : NATURAL SCIENCES; NATURVETENSKAP; 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

  4. 4. Functional Studies of Genes Associated with Muscle Growth in Pigs and Hair Greying in Horses

    Author : Lin Jiang; Leif Andersson; Kerstin Lindblad-Toh; Gerli Pielberg; Christopher Tuggle; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; QTN; muscle development; IGF2; ZBED6; RNA-seq; ChIP-seq; myoblasts; pancreatic beta cells; Grey horse; melanoma; MITF; Biologi med inriktning mot molekylär cellbiologi; Biology with specialization in Molecular Cell Biology;

    Abstract : Domestic animals have become very different from their wild ancestors during domestication and animal breeding. This provides a good model to unravel the molecular mechanisms underlying phenotypic variation. In my thesis I have studied genes affecting two important traits, leanness in pigs and hair greying-associated melanoma in horses. READ MORE

  5. 5. The role of Assortative Mating in the Initial Stages of Sympatric and Parapatric Speciation

    Author : Emma Rova; Mats Björklund; Göran Arnqvist; James Mallet; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Callosobruchus maculatus; host fidelity; assortative mating; inbreeding; experimental evidence; sympatric speciation; parapatric speciation; Biology; Biologi; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Abstract : Divergence in the face of gene flow is perhaps the most wildly disputed subject among researchers through time. The debate is an old one and we find its origin as far back as the era of Darwin. READ MORE