Olof Hellgren

Senior Lecturer
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  1. 2020
  2. Host transcriptional responses to high-and low-virulent avian malaria parasites

    Elin Videvall, Vaidas Palinauskas, Gediminas Valkiūnas & Olof Hellgren, 2020 Jun, In : American Naturalist. 195, 6, p. 1070–1084 15 p.

    Research output: Contribution to journalArticle

  3. Differential gene expression of Plasmodium homocircumflexum (lineage pCOLL4) across two experimentally infected passerine bird species

    L. Garcia-Longoria, V. Palinauskas, M. Ilgūnas, G. Valkiūnas & O. Hellgren, 2020 Mar 29, In : Genomics.

    Research output: Contribution to journalArticle

  4. 2019
  5. Major shifts in gut microbiota during development and its relationship to growth in ostriches

    Elin Videvall, Se Jin Song, Hanna M. Bensch, Maria Strandh, Anel Engelbrecht, Naomi Serfontein, Olof Hellgren, Adriaan Olivier, Schalk Cloete, Rob Knight & Charlie K. Cornwallis, 2019, In : Molecular Ecology. 28, 10, p. 2653-2667

    Research output: Contribution to journalArticle

  6. Within-Lineage Divergence of Avian Haemosporidians: A Case Study to Reveal the Origin of a Widespread Haemoproteus Parasite

    Xi Huang, Paulius Rapševičius, Leonardo Chapa-Vargas, Olof Hellgren & Staffan Bensch, 2019, In : The Journal of parasitology. 105, 3, p. 414-422 9 p.

    Research output: Contribution to journalArticle

  7. 2018
  8. The success of sequence capture in relation to phylogenetic distance from a reference genome: a case study of avian haemosporidian parasites

    Xi Huang, Roland Hansson, Vaidas Palinauskas, Gediminas Valkiūnas, Olof Hellgren & Staffan Bensch, 2018, In : International Journal for Parasitology. 48, 12, p. 947-954

    Research output: Contribution to journalArticle

  9. 2017
  10. Avian migration and the distribution of malaria parasites in New World passerine birds

    Robert E Ricklefs, Matthew Medeiros, Vincenzo Ellis, Maria Svensson-Coelho, John G. Blake, Bette A. Loiselle, Leticia Soares, Alan Fecchio, Diana Outlaw, Peter P. Marra, Steven C. Latta, Gediminas Valkiūnas, Olof Hellgren & Staffan Bensch, 2017 May, In : Journal of Biogeography. 44, 5, p. 1113-1123

    Research output: Contribution to journalArticle

  11. The transcriptome of the avian malaria parasite Plasmodium ashfordi displays host-specific gene expression

    Elin Videvall, Charlie Cornwallis, Dag Ahrén, Vaidas Palinauskas, Gediminas Valkiunas & Olof Hellgren, 2017 Mar 7, In : Molecular Ecology.

    Research output: Contribution to journalArticle

  12. 2016
  13. The evolution of innate immune genes: Purifying and balancing selection on β-Defensins in waterfowl

    Joanne R. Chapman, Olof Hellgren, Anu S. Helin, Robert H S Kraus, Ruth L. Cromie & Jonas Waldenström, 2016 Dec 1, In : Molecular biology and evolution. 33, 12, p. 3075-3087 13 p.

    Research output: Contribution to journalArticle

  14. Population genetic structure, differentiation, and diversity in Tetrix subulata pygmy grasshoppers: roles of population size and immigration

    Jon Tinnert, Olof Hellgren, Jenny Lindberg, Per Koch-Schmidt & Anders Forsman, 2016 Nov 1, In : Ecology and Evolution. 6, 21, p. 7831-7846 16 p.

    Research output: Contribution to journalArticle

  15. Multiple cryptic species of sympatric generalists within the avian blood parasite Haemoproteus majoris

    E. Nilsson, H. Taubert, O. Hellgren, X. Huang, V. Palinauskas, M. Y. Markovets, G. Valkiūnas & S. Bensch, 2016 Sep 1, In : Journal of evolutionary biology. 29, 9, p. 1812-1826 15 p.

    Research output: Contribution to journalArticle

  16. The genome of Haemoproteus tartakovskyi and its relationship to human malaria parasites

    Staffan Bensch, Björn Canbäck, Jeremy D DeBarry, Tomas Johansson, Olof Hellgren, Jessica C Kissinger, Vaidas Palinauskas, Elin Videvall & Gediminas Valkiūnas, 2016, In : Genome Biology and Evolution. 8, 5, p. 1361-73 13 p.

    Research output: Contribution to journalArticle

  17. 2015
  18. Detecting transmission areas of malaria parasites in a migratory bird species.

    Luz Garcia-Longoria, Olof Hellgren, Staffan Bensch, Florentino DE Lope & Alfonso Marzal, 2015, In : Parasitology. 142, 9, p. 1215-1220

    Research output: Contribution to journalArticle

  19. Global phylogeography of the avian malaria pathogen Plasmodium relictum based on MSP1 allelic diversity

    Olof Hellgren, Carter T. Atkinson, Staffan Bensch, Tamer Albayrak, Dimitar Dimitrov, John G. Ewen, Kyeong Soon Kim, Marcos R. Lima, Lynn Martin, Vaidas Palinauskas, Robert Ricklefs, Ravinder N. M. Sehgal, Gediminas Valkiunas, Yoshio Tsuda & Alfonso Marzal, 2015, In : Ecography. 38, 8, p. 842-850

    Research output: Contribution to journalArticle

  20. The Avian Transcriptome Response to Malaria Infection.

    Elin Videvall, Charlie Cornwallis, Vaidas Palinauskas, Gediminas Valkiūnas & Olof Hellgren, 2015, In : Molecular biology and evolution. 32, 5, p. 1255-1267

    Research output: Contribution to journalArticle

  21. 2014
  22. Genomic Resources Notes accepted 1 June 2013-31 July 2013

    Staffan Bensch, David W. Coltman, Corey S. Davis, Olof Hellgren, Tomas Johansson, Rene M. Malenfant, Stephen S. Moore, Vaidas Palinauskas & Gediminas Valkiunas, 2014, In : Molecular Ecology Resources. 14, 1, p. 218-218

    Research output: Contribution to journalDebate/Note/Editorial

  23. Molecular identification of the chitinase genes in Plasmodium relictum

    Luz Garcia-Longoria, Olof Hellgren & Staffan Bensch, 2014, In : Malaria Journal. 13, 239.

    Research output: Contribution to journalArticle

  24. 2013
  25. Circannual variation in blood parasitism in a sub-Saharan migrant passerine bird, the garden warbler

    Olof Hellgren, M J Wood, Jonas Waldenström, Dennis Hasselquist, Ulf Ottosson, Martin Stervander & Staffan Bensch, 2013, In : Journal of evolutionary biology. 26, 5, p. 1047-1059

    Research output: Contribution to journalArticle

  26. How can we determine the molecular clock of malaria parasites?

    Staffan Bensch, Olof Hellgren, Asta Križanauskienė, Vaidas Palinauskas, Gediminas Valkiūnas, Diana Outlaw & Robert E Ricklefs, 2013, In : Trends in Parasitology. 29, 8, p. 363-369

    Research output: Contribution to journalReview article

  27. The epidemiology underlying age‐related avian malaria infection in a long‐lived host: the mute swan Cygnus olor

    Matt J Wood, Dylan Z Childs, Alicia S Davies, Olof Hellgren, Charlie Cornwallis, Chris M Perrins & Ben C Sheldon, 2013, In : Journal of Avian Biology. 44, 4, p. 347-358

    Research output: Contribution to journalArticle

  28. The origin of Swedish and Norwegian populations of the Eurasian harvest mouse (Micromys minutus)

    Lars Råberg, Jon Loman, Olof Hellgren, Jeroen van der Kooij, Kjell Isaksen & Roar Solheim, 2013, In : Acta Theriologica. 58, 1, p. 101-104

    Research output: Contribution to journalArticle

  29. 2012
  30. Migratory behavior of birds affects their coevolutionary relationship with blood parasites

    Tania Jenkins, Gavin H Thomas, Olof Hellgren & Ian P F Owens, 2012, In : Evolution. 66, 3, p. 740-751

    Research output: Contribution to journalArticle

  31. 2011
  32. Diversity, Loss, and Gain of Malaria Parasites in a Globally Invasive Bird.

    Alfonso Marzal, Robert E Ricklefs, Gediminas Valkiūnas, Tamer Albayrak, Elena Arriero, Camille Bonneaud, Gábor A Czirják, John Ewen, Olof Hellgren, Dita Hořáková, Tatjana A Iezhova, Henrik Jensen, Asta Križanauskienė, Marcos Robalinho Lima, Florentino de Lope, Eyðfinn Magnussen, Lynn B Martin, Anders P Møller, Vaidas Palinauskas, Péter L Pap & 7 others, Javier Pérez-Tris, Ravinder N M Sehgal, Manuel Soler, Eszter Szöllősi, Helena Westerdahl, Pavel Zetindjiev & Staffan Bensch, 2011, In : PLoS ONE. 6, 7, e21905.

    Research output: Contribution to journalArticle

  33. 2009
  34. A jack-of-all-trades and still a master of some: prevalence and host range in avian malaria and related blood parasites

    Olof Hellgren, Javier Perez-Tris & Staffan Bensch, 2009, In : Ecology. 90, 10, p. 2840-2849

    Research output: Contribution to journalArticle

  35. 2008
  36. 2007
  37. Detecting shifts of transmission areas in avian blood parasites - a phylogenetic approach

    Olof Hellgren, Jonas Waldenström, Javier Perez-Tris, ES Ösi, Dennis Hasselquist, A Krizanauskiene, Ulf Ottosson & Staffan Bensch, 2007, In : Molecular Ecology. 16, 6, p. 1281-1290

    Research output: Contribution to journalArticle

  38. Diversity and phylogeny of mitochondrial cytochrome b lineages from six morphological species of avian Haemoproteus

    Olof Hellgren, Asta Krizanauskiene, Gediminas Valkiunas & Staffan Bensch, 2007, In : Journal of Parasitology. 93, 4, p. 889-896

    Research output: Contribution to journalArticle

  39. European Griffon Vulture Gyps fulvus and Yankari National Park in Nigeria

    Roine Strandberg, Ulf Ottosson, Jonas Waldenström & Olof Hellgren, 2007, In : Malimbus. 29, 2, p. 122-123

    Research output: Contribution to journalArticle

  40. Flight speeds among bird species: allometric and phylogenetic effects

    Thomas Alerstam, Mikael Rosén, Johan Bäckman, Pär Ericson & Olof Hellgren, 2007, In : PLoS Biology. 5, 8, p. 1656-1662

    Research output: Contribution to journalArticle

  41. Within-host speciation of malaria parasites

    Javier Perez-Tris, Olof Hellgren, Asta Križanauskienė, Jonas Waldenström, Jean Secondi, Camille Bonneaud, Jan Fjeldså, Dennis Hasselquist & Staffan Bensch, 2007, In : PLoS ONE. 2, 2, p. e235-e235

    Research output: Contribution to journalArticle

  42. 2006
  43. Avian Malaria and Related Blood Parasites: Molecular Diversity, Ecology and Evolution

    Olof Hellgren, 2006, Department of Ecology, Lund University. 164 p.

    Research output: ThesisDoctoral Thesis (compilation)

  44. Nested cytochrome B polymerase chain reaction diagnostics underestimate mixed infections of avian blood haemosporidian parasites: Microscopy is still essential

    G Valkiunas, Staffan Bensch, TA Iezhova, A Krizanauskiene, Olof Hellgren & CV Bolshakov, 2006, In : Journal of Parasitology. 92, 2, p. 418-422

    Research output: Contribution to journalArticle

  45. Variation in host specificity between species of avian haemosporidian parasites: evidence from parasite morphology and cytochrome b gene sequences

    A Križanauskiene, Olof Hellgren, V Kosarev, L Sokolov, Staffan Bensch & G Valkiūnas, 2006, In : Journal of Parasitology. 92, 6, p. 1319-1324

    Research output: Contribution to journalArticle

  46. 2005
  47. What are malaria parasites?

    Javier Perez-Tris, Dennis Hasselquist, Olof Hellgren, A Krizanauskiene, Jonas Waldenström & Staffan Bensch, 2005, In : Trends in Parasitology. 21, 5, p. 209-211

    Research output: Contribution to journalLetter

  48. 2004
  49. A new PCR assay for simultaneous studies of Leucocytozoon, Plasmodium, and Haemoproteus from avian blood

    Olof Hellgren, Jonas Waldenström & Staffan Bensch, 2004, In : Journal of Parasitology. 90, 4, p. 797-802

    Research output: Contribution to journalArticle

  50. Linkage between nuclear and mitochondrial DNA sequences in avian malaria parasites: Multiple cases of cryptic speciation?

    Staffan Bensch, Javier Perez-Tris, Jonas Waldenström & Olof Hellgren, 2004, In : Evolution. 58, 7, p. 1617-1621

    Research output: Contribution to journalArticle

  51. Vertebrate host specificity of wild-caught blackflies revealed by mitochondrial DNA in blood

    B Malmqvist, D Strasevicius, Olof Hellgren, PH Adler & Staffan Bensch, 2004, In : Royal Society of London. Proceedings B. Biological Sciences. 271, S4, p. S152-S155

    Research output: Contribution to journalArticle