Cristin-person-ID: 24161
Person

Aktiv cristin-person Kjetill Sigurd Jakobsen

  • Stilling:
    Professor
    ved Centre for Ecological and Evolutionary Synthesis ved Universitetet i Oslo

Klassifisering

Emneord

Biologi • Genetikk

Bakgrunn Bakgrunn

Tittel

Kjetill Sigurd Jakobsen

Sammendrag

My research has dealt with quite diverse aspects of evolutionary genetics and genomics. A main theme in my work relates to the genetic forces (both ongoing and historical) acting upon populations, and how the genetics relates to ecological and evolutionary processes. In this context, issues such as phenotypic plasticity, selective forces and epigenetic phenomena are of particular interest. I have worked on many biological systems ranging from cyanobacteria and protists to higher plants, fishes and mammals. Currently my research group focuses on bacteria – particularly cyanobacteria – and several protist and algal groups. The protist research is driven by a wish to understand the processes shaping such “alien” genomes –including endosymbiosis, gene transfer and protistt phylogenomics. From a large scale phylogenetic viewpoint Dinoflagellates, Chromista, Rhizaria and some groups of deep branching unikont protists are my favorites. Another favorite group - Cyanobacteria being the key organisms in evolution of many protist groups and the most successful group of organisms throughout the evolutionary history – are being investigated at the comparative genome level and for their non-ribosomal peptide syntethases. We are currently employing a high throughput pyrosequencing (Roche 454 FLX genome sequencer) for this purpose. The 454 sequencing platform has recently been established at CEES by funding from FUGE and the Norwegian research Council.

Tittel

Kjetill Sigurd Jakobsen

Populærvitenskapelig sammendrag

My research has dealt with quite diverse aspects of evolutionary genetics and genomics. A main theme in my work relates to the genetic forces (both ongoing and historical) acting upon populations, and how the genetics relates to ecological and evolutionary processes. In this context, issues such as phenotypic plasticity, selective forces and epigenetic phenomena are of particular interest. I have worked on many biological systems ranging from cyanobacteria and protists to higher plants, fishes and mammals. Currently my research group focuses on bacteria – particularly cyanobacteria – and several protist and algal groups. The protist research is driven by a wish to understand the processes shaping such “alien” genomes –including endosymbiosis, gene transfer and protistt phylogenomics. From a large scale phylogenetic viewpoint Dinoflagellates, Chromista, Rhizaria and some groups of deep branching unikont protists are my favorites. Another favorite group - Cyanobacteria being the key organisms in evolution of many protist groups and the most successful group of organisms throughout the evolutionary history – are being investigated at the comparative genome level and for their non-ribosomal peptide syntethases. We are currently employing a high throughput pyrosequencing (Roche 454 FLX genome sequencer) for this purpose. The 454 sequencing platform has recently been established at CEES by funding from FUGE and the Norwegian research Council.

Resultater Resultater

Identification of multiple chromosomal inversions and fusions in a keystone Arctic species with high gene flow.

Hoff, Siv Nam Khang; Maurstad, Marius Filomeno; Alan, Le Moan; Ravinet, Mark; Durant, Joël; Tørresen, Ole K.; Vieweg, Ireen; Collard, France; Pampoulie, Christophe; Godiksen, Jane Aanestad mfl.. 2023, Annual Conference of the Society for Molecular Biology and Evolution. SORBONNE, UIT, NIVA, UIO, DFO, HAVFORSK, HAFROPoster

Identification of multiple chromosomal inversions and fusions in a keystone Arctic species with high gene flow.

Hoff, Siv Nam Khang; Maurstad, Marius Filomeno; Le Moan, Alan; Ravinet, Mark; Durant, Joël; Tørresen, Ole Kristian; Vieweg, Ireen; Nahrgang-Berge, Jasmine Magali; Hop, Haakon; Collard, France mfl.. 2023, Aquatic Sciences Meeting 2023 . SORBONNE, UIT, NIVA, VETINST, AKVAPLAN, UNIS, NPI, UIO, DFO, HAVFORSK, HAFROVitenskapelig foredrag

DNA hydroxymethylation differences underlie phenotypic divergence of somatic growth in Nile tilapia reared in common garden.

Konstantinidis, Ioannis; Sætrom, Pål; Brieuc, Marine Servane Ono; Jakobsen, Kjetill Sigurd; Liedtke, Hannes; Pohlmann, Caroline; Tsoulia, Thomais; Fernandes, Jorge Manuel de Oliveira. 2023, Epigenetics. NORD, NTNU, UIOVitenskapelig artikkel

Teleost genomic repeat landscapes in light of diversification rates and ecology.

Reinar, William Brynildsen; Tørresen, Ole K.; Nederbragt, Lex; Matschiner, Michael; Jentoft, Sissel; Jakobsen, Kjetill Sigurd. 2023, Mobile DNA. UIOVitenskapelig artikkel

Hybridization of Atlantic puffins in the Arctic coincides with 20th-century climate change.

Kersten, Oliver Sven; Star, Bastiaan; Krabberød, Anders Kristian; Atmore, Lane; Tørresen, Ole K.; Anker-Nilssen, Tycho; Descamps, Sebastien; Strøm, Hallvard; Johansson, Ulf S.; Sweet, Paul R. mfl.. 2023, Science Advances. NPI, AMNH, NRM, UIO, NINAVitenskapelig artikkel
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