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Engineering    2018, Vol. 4 Issue (4) : 542 -551
Research |
Aphanomyces euteiches: A Threat to Canadian Field Pea Production
Longfei Wu1,Kan-Fa Chang2,Robert L. Conner3,Stephen Strelkov1,Rudolph Fredua-Agyeman2,Sheau-Fang Hwang2(),David Feindel2
1. Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
2. Crop Diversification Center North, Alberta Agriculture and Forestry, Edmonton, AB T5Y 6H3, Canada
3. Agriculture and Agri-Food Canada, Morden Research and Development Centre, Morden, MB R6M 1Y5, Canada

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 of A. 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.

Keywords Field pea      Aphanomyces euteiches      Root rot      Pathogenicity variability      Quantitative trait loci     
Corresponding Authors: Sheau-Fang Hwang   
Issue Date: 11 September 2018
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Longfei Wu
Kan-Fa Chang
Robert L. Conner
Stephen Strelkov
Rudolph Fredua-Agyeman
Sheau-Fang Hwang
David Feindel
Cite this article:   
Longfei Wu,Kan-Fa Chang,Robert L. Conner, et al. Aphanomyces euteiches: A Threat to Canadian Field Pea Production[J]. Engineering, 2018, 4(4): 542 -551 .
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