Sökning: "gene tree"

Visar resultat 21 - 25 av 132 avhandlingar innehållade orden gene tree.

1. 21. Inferring Ancestry : Mitochondrial Origins and Other Deep Branches in the Eukaryote Tree of Life

   Författare :Ding He; Sandra Baldauf; Siv Andersson; Andrew Roger; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Molecular Phylogeny; Phylogenomics; Mitochondria; Eukaryote tree of life; Biology with specialization in Systematics; Biologi med inriktning mot systematik; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

   Sammanfattning : There are ~12 supergroups of complex-celled organisms (eukaryotes), but relationships among them (including the root) remain elusive. For Paper I, I developed a dataset of 37 eukaryotic proteins of bacterial origin (euBac), representing the conservative protein core of the proto-mitochondrion. LÄS MER

3. 22. Computational approaches for in-depth analysis of cDNA sequence tags

   Författare :Per Unneberg; Joakim Lundberg; Leif Andersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; cDNA; EST; gene expression; SNP; SAGE; polymorphism; Bioteknik; Bioengineering; Bioteknik;

   Sammanfattning : Major recent improvements in biotechnology have led to an accelerated production of DNA sequences. The completion of the human genome sequence, along with the genomes of more than two hundred other species, has marked the arrival of the genome era. The ultimate goal is to understand the structure and function of genomes and their genes. LÄS MER

4. 23. Development of New Methods for Inferring and Evaluating Phylogenetic Trees

   Författare :Tobias Hill; Helgi Schiöth; Robert Fredriksson; Mark Wilkinson; Uppsala universitet; []
   Nyckelord :Pharmacology; Evolution; Phylogeny; SPR; Genetic Algorithm; Tree metrics; Farmakologi;

   Sammanfattning : Inferring phylogeny is a difficult computational problem. Heuristics are necessary to minimize the time spent evaluating non optimal trees. In paper I, we developed an approach for heuristic searching, using a genetic algorithm. Genetic algorithms mimic the natural selections ability to solve complex problems. LÄS MER

5. 24. Gene finding in Populus- The Bioinformatics of a EST program

   Författare :Rupali Bhalerao; KTH; []
   Nyckelord :;

   Sammanfattning : During the course of the work described in this thesis, ESTsequencing project was initiated in woody plant poplar forlarge scale gene discovery in a tree specie. Since most of thetree genomes are considerably large in size, EST sequencing wasconsidered to be a cost effective method for gene discovery. LÄS MER

7. 25. The relationship between orthology, protein domain architecture and protein function

   Författare :Kristoffer Forslund; Erik Sonnhammer; Cristina Al-Khalili Szigyarto; Sarah Teichmann; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homology; orthology; paralogy; gene duplications; protein function prediction; low-complexity regions; protein domains; domain architecture evolution; introns; intron position conservation; orthology conjecture; domain grammar hypothesis; biokemi; inriktning teoretisk kemi; Biochemistry with Emphasis on Theoretical Chemistry;

   Sammanfattning : Lacking experimental data, protein function is often predicted from evolutionary and protein structure theory. Under the 'domain grammar' hypothesis the function of a protein follows from the domains it encodes. LÄS MER