Tracking costs of virulence in natural populations of the wheat pathogen, Puccinia striiformis f.sp. tritici |
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| Authors: | Bochra Bahri Oliver Kaltz Marc Leconte Claude de Vallavieille-Pope and Jér?me Enjalbert |
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| Institution: | (1) UMR BIOGER CPP, INRA Agro-Paris-Tech, BP01, 78850 Thiverval-Grignon, France;(2) Laboratoire de Parasitologie Evolutive – UMR 7103, UPMC UnivParis 06, 7 quai St-Bernard, 75252 Paris, France;(3) Institut des Sciences de l'Evolution – UMR 5554, Universit? Montpellier 2, Place E. Bataillon (CC065), 34095 Montpellier Cedex 05, France |
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| Abstract: | Background Costs of adaptation play an important role in host-parasite coevolution. For parasites, evolving the ability to circumvent
host resistance may trade off with subsequent growth or transmission. Such costs of virulence (sensu plant pathology) limit the spread of all-infectious genotypes and thus facilitate the maintenance of genetic polymorphism
in both host and parasite. We investigated costs of three virulence factors in Puccinia striiformis f.sp. tritici, a fungal pathogen of wheat (Triticum aestivum). |
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