Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/12350
Title: | Genetic and phenotypic influences on clone-level success and host specialization in a generalist parasite | Contributor(s): | Koehler, Anson V (author); Springer, Yuri P (author); Randhawa, Haseeb S (author); Leung, Tommy (author); Keeney, Devon B (author); Poulin, Robert (author) | Publication Date: | 2012 | Open Access: | Yes | DOI: | 10.1111/j.1420-9101.2011.02402.x | Handle Link: | https://hdl.handle.net/1959.11/12350 | Abstract: | Studying resource specialization at the individual level can identify factors constraining the evolution of generalism. We quantified genotypic and phenotypic variability among infective stages of 20 clones of the parasitic trematode 'Maritrema novaezealandensis' and measured their infection success and post-infection fitness (growth, egg output) in several crabs and amphipods. First, different clones varied in their infection success of different crustaceans. Second, neither genetic nor phenotypic traits had consistent effects on infection success across all host species. Although the results suggest a relationship between infection success and phenotypic variability, phenotypically variable clones were not better at infecting more host species than less variable ones. Third, genetic and phenotypic traits also showed no consistent correlations with post-infection fitness measures. Overall, we found no consistent clone-level specialization, with some clones acting as specialists and others, generalists. The trematode population therefore maintains an overall generalist strategy by comprising a mixture of clone-level specialists and generalists. | Publication Type: | Journal Article | Source of Publication: | Journal of Evolutionary Biology, 25(1), p. 66-79 | Publisher: | Wiley-Blackwell Publishing Ltd | Place of Publication: | United Kingdom | ISSN: | 1420-9101 1010-061X |
Fields of Research (FoR) 2008: | 060899 Zoology not elsewhere classified 060307 Host-Parasite Interactions 060808 Invertebrate Biology |
Fields of Research (FoR) 2020: | 310999 Zoology not elsewhere classified 310407 Host-parasite interactions 310913 Invertebrate biology |
Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Socio-Economic Objective (SEO) 2020: | 280102 Expanding knowledge in the biological sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Environmental and Rural Science |
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