A shift in pathotype diversity and complexity of <i>Phytophthora sojae</i> in Brazil-Reference-Cited by-同舟云学术

A shift in pathotype diversity and complexity of Phytophthora sojae in Brazil

Published:2022-12-12 Issue: Volume: Page:
ISSN:0191-2917
Container-title:Plant Disease
language:en
Short-container-title:Plant Disease

Author:

Batista Izabel Cristina Alves¹,Silva Maria P. C.²,Silva Junior Amarildo L.³,Arriagada Mariela P. G.⁴,Camargo Meyriele Pires de⁵,Figueiredo Adriana⁶,Júnior Braz Tavares da Hora⁵,Mizubuti Eduardo S. G.⁷⁸

Affiliation:

1. Universidade Federal de Viçosa, 28120, Departamento de Viçosa, Universidade Federal de Viçosa, Viçosa, Viçosa, MG, Brazil, 36570-000, ;

2. Universidade Federal de Vicosa, 28120, Departamento de Fitopatologia, Av Peter Henry Rolfs s/n Campus Universitário, Vicosa, MG, Brazil, 36570900;

3. Universidade Federal de Vicosa, 28120, Departamento de Fitopatologia, Vicosa, MG, Brazil;

4. Universidade Federal de Vicosa, 28120, Departamento de Fitopatologia, PH Rolfs s/n, Vicosa, MG, Brazil, 36570-000;

5. Bayer, São Paulo, São Paulo, Brazil;

6. Bayer Crop Science, São Paulo, Brazil;

7. Universidade Federal de Viçosa, Fitopatologia, Campus Universitário, s/n, Vicosa, MG, Brazil, 36570-900, ,

8. Brazil;

Abstract

Soybean root and stem rot caused by the oomycete Phytophthora sojae is a destructive disease worldwide that can affect plants at any growth stage. The use of resistant cultivars is the most effective method of controlling the disease. Therefore, monitoring changes in the population of P. sojae regarding the dynamics of avirulence genes capable of overcoming resistance genes (Rps) is important to reduce yield losses and to enhance the effectiveness of the Rps genes. Forty isolates of P. sojae sampled from a region of high incidence of soybean root and stem rot in Brazil were characterized using 14 soybean differentials and 28 pathotypes were identified. Compared to a study conducted a decade ago there was a major shift in pathotype diversity and complexity towards both higher numbers of different pathotypes and of avirulence genes in a given individual in the current population of P. sojae. Breeding programs aiming at developing soybean cultivars with resistance to root and stem rot should consider the high variability in the population of P. sojae and seek for strategic deployment of genes and germplasm.

Publisher

Scientific Societies

Subject

Plant Science,Agronomy and Crop Science

Link

https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-11-22-2558-SC

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1. Soybean Variety Saedanbaek Confers a New Resistance Allele to Phytophthora sojae;Plants;2023-11-24

2. An updated assessment of the soybean–Phytophthora sojae pathosystem;Plant Pathology;2023-02-21