The ‘Dr Jekyll and Mr Hyde fungus’: noble rot versus gray mold symptoms of Botrytis cinerea on grapes

Evolutionary Applications

Elisabeth Fournier¹  Pierre Gladieux² 

[1] Biologie et Génétique des Interactions Plante-Parasite, INRA-CIRAD-SupAgro, Montpellier Cedex 5, France;Ecologie, Systématique et Evolution, Université Paris-Sud, Orsay Cedex, France

关键词: Ascomycete;    Botrytis cinerea;    genetic structure;    gray mold;    microsatellites;    noble rot;    population structure;   

DOI  :  10.1111/eva.12079

来源: Wiley

【 摘 要 】

Abstract

Many cryptic species have recently been discovered in fungi, especially in fungal plant pathogens. Cryptic fungal species co-occurring in sympatry may occupy slightly different ecological niches, for example infecting the same crop plant but specialized on different organs or having different phenologies. Identifying cryptic species in fungal pathogens of crops and determining their ecological specialization are therefore crucial for disease management. Here, we addressed this question in the ascomycete Botrytis cinerea, the agent of gray mold on a wide range of plants. On grape, B. cinerea causes severe damage but is also responsible for noble rot used for processing sweet wines. We used microsatellite genotyping and clustering methods to elucidate whether isolates sampled on gray mold versus noble rot symptoms in three French regions belong to genetically differentiated populations. The inferred population structure matched geography rather than the type of symptom. Noble rot symptoms therefore do not seem to be caused by a specific B. cinerea population but instead seem to depend essentially on microclimatic conditions, which has applied consequences for the production of sweet wines.

【 授权许可】

CC BY   
© 2013 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd.

Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.