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Virulence of Icelandic Pyrenophora teres f. teres populations and resistance of Icelandic spring barley lines

Novakazi, Fluturë and Göransson, Magnus and Stefánsson, Tryggvi Sturla and Hokka, Marjo and Jalli, Marja and Hallsteinn Hallsson, Jón (2022). Virulence of Icelandic Pyrenophora teres f. teres populations and resistance of Icelandic spring barley lines. Journal of plant pathology. 104 :1 , 205-213
[Research article]

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Abstract

The causal agent of the barley net blotch disease, Pyrenophora teres, is known for its high level of diversity due to sexual reproduction. Different pathotypes, defined by a virulence combination, even within the same fields are frequently found and virulence between locations can vary considerably. Evaluation of virulence patterns of a pathogen population is essential for breeding resistant cultivars suitable for specific locations. To identify virulence patterns in Icelandic Pyrenophora teres f. teres (Ptt) isolates, twenty single spore isolates of Ptt were collected from seven locations in Iceland and analysed with AFLP markers. Principle Coordinate Analysis (PCoA) revealed Icelandic Ptt isolates clustering away from reference isolates from Austria, Finland, Sweden, Switzerland, UK, and USA. Hierarchical clustering grouped the Icelandic isolates into three distinct groups. Furthermore, the virulence of these twenty isolates was tested on 16 barley differential lines and revealed high variation in their virulence. Twenty-one barley cultivars commonly used in Iceland showed high susceptibility towards inoculation with Icelandic Ptt isolates.

Authors/Creators:Novakazi, Fluturë and Göransson, Magnus and Stefánsson, Tryggvi Sturla and Hokka, Marjo and Jalli, Marja and Hallsteinn Hallsson, Jón
Title:Virulence of Icelandic Pyrenophora teres f. teres populations and resistance of Icelandic spring barley lines
Series Name/Journal:Journal of plant pathology
Year of publishing :2022
Volume:104
Number:1
Page range:205-213
Number of Pages:9
ISSN:1125-4653
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
URN:NBN:urn:nbn:se:slu:epsilon-p-115352
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115352
Additional ID:
Type of IDID
DOI10.1007/s42161-021-00972-5
ID Code:27220
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:28 Feb 2022 11:25
Metadata Last Modified:28 Feb 2022 11:31

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