The effect of mating system on growth of Arabidopsis lyrata in response to inoculation with the biotrophic parasite Albugo candida

Hoebe, P.N., Stift, M., Holub, E.B. and Mable, B.K. (2011) The effect of mating system on growth of Arabidopsis lyrata in response to inoculation with the biotrophic parasite Albugo candida. Journal of Evolutionary Biology, 24(2), pp. 391-401. (doi:10.1111/j.1420-9101.2010.02177.x)

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Publisher's URL: http://dx.doi.org/10.1111/j.1420-9101.2010.02177.x

Abstract

The effects of variation in host reproductive systems on response to pathogens are not well understood. We inoculated individuals from outcrossing and inbreeding populations of North American Arabidopsis lyrata with Albugo candida (white blister rust) to test the effect of mating system and heterozygosity on disease response. We observed three host infection phenotypes, classified as fully resistant, partially resistant and fully susceptible. Overall, inbreeding populations had more susceptible and fewer partially resistant individuals than outcrossing populations, but the highest proportion of resistant individuals was found in two of the inbreeding populations. Mating system did not affect relative growth rate of inoculated plants, but there were strong effects of population and infection phenotype. We conclude that mating system per se does not determine the resistance of natural A. lyrata populations to infection by Albugo, but that the increased variability in responses among inbreeding populations may be due to reduced effective population size.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Mable, Professor Barbara and Stift, Mr Marc
Authors: Hoebe, P.N., Stift, M., Holub, E.B., and Mable, B.K.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:Journal of Evolutionary Biology
ISSN:1010-061X

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
374091Genomes, pathogens and mate choice - implications for the evolution and maintenance of genetic diversityBarbara MableNatural Environment Research Council (NERC)NE/B50094X/1RI BIODIVERSITY ANIMAL HEALTH & COMPMED
426221Mating systems and genetic diversity in Arabidopsis lyrataBarbara MableNatural Environment Research Council (NERC)NE/D013461/1RI BIODIVERSITY ANIMAL HEALTH & COMPMED