A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Opposing health effects of hybridization for conservation (2021)

Klemme, I., Hendrikx, L., Ashrafi, R., Sundberg, L., Räihä, V., Piironen, J., Hyvärinen, P., & Karvonen, A. (2021). Opposing health effects of hybridization for conservation. Conservation Science and Practice, 3(5), Article e379. https://doi.org/10.1111/csp2.379

JYU-tekijät tai -toimittajat

Klemme, Ines
Ashrafi, Roghaieh
Sundberg, Lotta-Riina
Räihä, Ville
Karvonen, Anssi

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Klemme, Ines; Hendrikx, Lysanne; Ashrafi, Roghaieh; Sundberg, Lotta‐Riina; Räihä, Ville; Piironen, Jorma; Hyvärinen, Pekka; Karvonen, Anssi

Lehti tai sarja: Conservation Science and Practice

ISSN: 2578-4854

eISSN: 2578-4854

Julkaisuvuosi: 2021

Ilmestymispäivä: 18.02.2021

Volyymi: 3

Lehden numero: 5

Artikkelinumero: e379

Kustantaja: Wiley

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1111/csp2.379

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/74357

Tiivistelmä

The continuing decline of many natural plant and animal populations emphasizes the importance of conservation strategies. Hybridization as a management tool has proven successful in introducing gene flow to small, inbred populations, but can be also associated with health risks. For example, hybridization can change susceptibility to infection in either direction due to heterosis (hybrid vigor) and outbreeding depression, but such health effects have rarely been considered in the genetic management of populations. Here, we investigated the effects of experimental outcrossing between the critically endangered Saimaa landlocked salmon (Salmo salar m. sebago) and the genetically more diverse Atlantic salmon (S. salar) on infection susceptibility. We exposed the parent populations and their hybrids to two parasites that commonly infect these species, the bacterium Flavobacterium columnare and the macroparasitic fluke Diplostomum pseudospathaceum. We found that landlocked salmon had lower survival during the bacterial epidemic, but higher resistance against the fluke, compared with Atlantic salmon. Hybrids showed intermediate survival and resistance, suggesting that hybridization decreased susceptibility to one parasite, but concurrently increased it to another. Our results emphasize the importance of considering health effects of different types of infections when employing hybridization for conservation.

YSO-asiasanat: lajiensuojelu; uhanalaiset eläimet; risteytyminen; risteymät (biologia); heteroosi; sukusiitos; kalataudit; loistaudit; lohi