A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Variation in parasite resistance of Arctic charr, Salvelinus alpinus, between and within sympatric morphs (2021)


Karvonen, A., Beck, S. V., Skúlason, S., Kristjánsson, B. K., & Leblanc, C. A. (2021). Variation in parasite resistance of Arctic charr, Salvelinus alpinus, between and within sympatric morphs. Ecology and Evolution, 11(20), 14024-14032. https://doi.org/10.1002/ece3.8109


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Karvonen, Anssi; Beck, Samantha V.; Skúlason, Skúli; Kristjánsson, Bjarni K.; Leblanc, Camille A.

Lehti tai sarja: Ecology and Evolution

eISSN: 2045-7758

Julkaisuvuosi: 2021

Volyymi: 11

Lehden numero: 20

Artikkelin sivunumerot: 14024-14032

Kustantaja: Wiley-Blackwell

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1002/ece3.8109

Linkki tutkimusaineistoon: https://doi.org/10.5061/dryad.bvq83bk95

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/77881


Tiivistelmä

Genetic variation in resistance against parasite infections is a predominant feature in host–parasite systems. However, mechanisms maintaining genetic polymorphism in resistance in natural host populations are generally poorly known. We explored whether differences in natural infection pressure between resource-based morphs of Arctic charr (Salvelinus alpinus) have resulted in differentiation in resistance profiles. We experimentally exposed offspring of two morphs from Lake Þingvallavatn (Iceland), the pelagic planktivorous charr (“murta”) and the large benthivorous charr (“kuðungableikja”), to their common parasite, eye fluke Diplostomum baeri, infecting the eye humor. We found that there were no differences in resistance between the morphs, but clear differences among families within each morph. Moreover, we found suggestive evidence of resistance of offspring within families being positively correlated with the parasite load of the father, but not with that of the mother. Our results suggest that the inherited basis of parasite resistance in this system is likely to be related to variation among host individuals within each morph rather than ecological factors driving divergent resistance profiles at morph level. Overall, this may have implications for evolution of resistance through processes such as sexual selection.


YSO-asiasanat: muuntelu (biologia); geneettinen muuntelu; resistenssi; parasitismi; loiset; imumadot; nieriä

Vapaat asiasanat: adaptive radiation; breeding coloration; freshwater fish ecotype; host– parasite interaction; immunogenes; speciation; trematode


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OKM-raportointi: Kyllä

Alustava JUFO-taso: 1


Viimeisin päivitys 2021-18-11 klo 08:03