Aphanomyces euteiches： A Threat to Canadian Field Pea Production

作     者：Longfei Wu Kan-Fa Chang Robert L. Conner Stephen Strelkov Rudolph Fredua-Agyeman Sheau-Fang Hwang David Feindel 

作者机构：Department of Agricultural Food and Nutritional Science University of Alberta Edmonton AB T6G 2P5 Canada Crop Diversification Center North Alberta Agriculture and Forestry Edmonton AB TSY 6H3 Canada Agriculture and Agri-Food Canada Morden Research and Development Centre Morden MB R6M 1Y5 Canada 

出 版 物：《Engineering》 (工程（英文）)

年 卷 期：2018年第4卷第4期

页      面：542-551页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090302[农学-植物营养学] 0902[农学-园艺学] 090202[农学-蔬菜学] 

基　　金：funding support received from Agriculture and Agri-Food Canada the Saskatchewan Pulse Growers Association the Manitoba Pulse and Soybean Growers through the Growing Forward 2 the Pest Management and Surveillance Implementation Program 

主　　题：Field pea Aphanomyces euteiches Root rot Pathogenicity variability Quantitative trait loci 

摘      要：Field pea （Pisum sativum var. arvense L.） is an important legume crop around the world. It produces grains with high protein content and can improve the amount of available nitrogen in the soil. Aphanomyces root rot （ARR）, caused by the soil-borne oomycete Aphanomyces euteiches Drechs. （A. euteiches）, is a major threat to pea production in many pea-growing regions including Canada; it can cause severe root damage, wilting, and considerable yield losses under wet soil conditions. Traditional disease management strategies, such as crop rotations and seed treatments, cannot fully prevent ARR under conditions conducive for the disease, due to the longevity of the pathogen oospores, which can infect field pea plants at any growth stage. The development of pea cultivars with partial resistance or tolerance to ARR may be a promising approach to analyze the variability and physiologic specialization ofA. euteiches in field pea and to improve the management of this disease. As such, the detection of quantitative trait loci （QTL） for resistance is essential to field pea-breeding programs. In this paper, the pathogenic characteristics of A. euteiches are reviewed along with various ARR management strategies and the QTL associated with partial resistance to ARR.