Sökning: "reptiles evolution"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden reptiles evolution.
1. Molecular Evolution of the Vertebrate Genome
Sammanfattning : In this thesis, I studied molecular evolution of the vertebrate genome, focusing on sex chromosomes, protein coding genes, and genome size variation. The evolutionary history of avian sex chromosomes was analyzed by comparing substitution rate among 12 gametologous gene pairs on the Z and W chromosomes. LÄS MER
2. The mast cell transcriptome and the evolution of granule proteins and Fc receptors
Sammanfattning : Protection against disease-causing pathogens, known as immunity, involves numerous cells organs, tissues and their products. To able to understand the biology of immune cells (hematopoietic cells) and their role in an immune system, we have used several different methods, including transcriptome analyses, bioinformatics, production of recombinant proteins and analyses of some of them, focusing on the granule proteases by substrate phage display. LÄS MER
3. Preservation of Marine Reptile Soft Parts: Reconstructing the Life and Death of Ancient Leviathans
Sammanfattning : Marine reptiles constitute a diverse group of secondarily aquatic tetrapods that have inhabited the world’s oceans for the greater part of the last 250 million years. While certain large-scale anatomical changes have been observed through progressive alterations of their skeletal morphology (e.g. LÄS MER
4. The Molecular Evolution of Snakes as revealed by Mitogenomic Data
Sammanfattning : Snakes (Serpentes) are a diverse suborder of reptiles that, along with lizards and amphisbaenians, belong to the reptilian order Squamata. The phylogenetic position of snakes relative to lizards and amphisbaenians has been debated for about 140 years. LÄS MER
5. Spatiotemporal Evolution of Neotropical Organisms: New Insights into an Old Riddle
Sammanfattning : Nowhere else on Earth are there so many species of plants and animals as in the Neotropical region. Yet, many questions remain concerning the causes underlying such outstanding diversification. LÄS MER