FN Archimer Export Format
PT J
TI Evolution of morphological but not aggressiveness‐related traits following a major resistance breakdown in the poplar rust fungus,  Melampsora larici‐populina
BT 
AF Maupetit, Agathe
   Fabre, Bénédicte
   Pétrowski, Jérémy
   Andrieux, Axelle
   De Mita, Stéphane
   Frey, Pascal
   Halkett, Fabien
   Hayden, Katherine
AS 1:1,2;2:1;3:1;4:1;5:1;6:1;7:1;8:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Université de Lorraine INRAE 54000 Nancy,France
   Royal Botanic Garden Edinburgh, EH3 5LR, UK
C2 UNIV LORRAINE, FRANCE
   ROYAL BOTANIC GARDEN, UK
IN DOAJ
IF 4.929
TC 2
UR https://archimer.ifremer.fr/doc/00652/76396/77420.pdf
   https://archimer.ifremer.fr/doc/00652/76396/77421.pdf
LA English
DT Article
DE ;disease-associated traits;heritability;mixed model;plant pathogen;Q(ST)-F(ST)comparisons;temporal sampling
AB Crop varieties carrying qualitative resistance to targeted pathogens lead to strong selection pressure on parasites, often resulting in resistance breakdown. It is well known that qualitative resistance breakdowns modify pathogen population structure but few studies have analysed the consequences on their quantitative aggressiveness‐related traits. The aim of this study was to characterize the evolution of these traits following a resistance breakdown in the poplar rust fungus, Melampsora larici‐populina. We based our experiment on three temporal populations sampled just before the breakdown event, immediately after and four years later. First, we quantified phenotypic differences among populations for a set of aggressiveness traits on a universally susceptible cultivar (infection efficiency, latent period, lesion size, mycelium quantity, and sporulation rate) and one morphological trait (mean spore volume). Then we estimated heritability to establish which traits could be subjected to adaptive evolution, and tested for evidence of selection. Our results revealed significant changes in the morphological trait but no variation in aggressiveness traits. By contrast, recent works have demonstrated that quantitative resistance (initially assumed more durable) could be eroded and lead to increased aggressiveness. Hence, this study is one example suggesting that the use of qualitative resistance may be revealed to be less detrimental to long‐term sustainable crop production. 
PY 2021
PD FEB
SO Evolutionary Applications
SN 1752-4571
PU Wiley
VL 14
IS 2
UT 000577770500001
BP 513
EP 523
DI 10.1111/EVA.13136
ID 76396
ER

EF