Oat Fungal Diseases and the Application of Molecular Marker Technology for Their Control

Cabral, Adrian L.; Gnanesh, Belaghihalli N.; Fetch, J. Mitchell; McCartney, Curt A.; Fetch, Thomas; Park, Robert; Menzies, J. G.; McCallum, Brent D.; Nanaiah, Ganapathy Kuyyamudi; Goyal, Aakash

doi:10.1007/978-1-4939-1188-2_12

Cited by 15 publications

(6 citation statements)

References 87 publications

(95 reference statements)

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“…In parallel, such systems are also used for genome‐wide association study (GWAS) as an alternative route to locate crown rust resistance QTLs (Klos et al ., ; Montilla‐Bascón et al ., ). Apart from their application in marker‐assisted selection, molecular markers are essential for map‐based cloning of resistance genes (Cabral et al ., ) as a basic step towards the determination of the mechanisms by which these genes exert their function. In this context, recent advances in genotyping by sequencing (GBS) and RNA sequencing (RNA‐seq) in oat (Gutierrez‐Gonzalez et al ., ; Huang et al ., ) have provided essential resources to enable functional studies of candidate genes.…”

Section: Genetic Resistance To Oat Crown Rustmentioning

confidence: 99%

Puccinia coronata f. sp. avenae: a threat to global oat production

Nazareno

Smith

et al. 2017

Molecular Plant Pathology

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101

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Most crown rust management strategies involve the use of rust-resistant crop varieties and the application of fungicides. The attainment of the durability of resistance against Pca is difficult as it is a highly variable pathogen with a great propensity to overcome the genetic resistance of varieties. Thus, adult plant resistance is often exploited in oat breeding programmes to develop new crown rust-resistant varieties. Useful website: https://www.ars.usda.gov/midwest-area/st-paul-mn/cereal-disease-lab/docs/cereal-rusts/race-surveys/.

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Section: Genetic Resistance To Oat Crown Rustmentioning

confidence: 99%

Puccinia coronata f. sp. avenae: a threat to global oat production

Nazareno

Smith

et al. 2017

Molecular Plant Pathology

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101

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“…Plant diseases are one of the major constraints in global oat production. Among many diseases affecting oat, fungal diseases such as crown rust, stem rust, powdery mildew and fusarium head blight are the most damaging, deteriorating the yield as well as the quality of the grain and forage [ 1 , 4 ]. Powdery mildew caused by Blumeria graminis f.sp.…”

Section: Introductionmentioning

confidence: 99%

Is Every Wild Species a Rich Source of Disease Resistance? Avena fatua L.—Potential Donor of Resistance to Powdery Mildew

Okoń

Ociepa

Nucia

et al. 2021

Plants

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Identifying effective sources of disease resistance is an important aspect of an effective plant protection strategy. Wild species related to cultivars constitute a rich reservoir of resistance genes. Studies conducted in oat have shown that wild species are donors of resistance genes to crown and stem rust, powdery mildew or fusarium head blight. The aim of the present study was to prove whether A. fatua could be a source of effective resistance genes to powdery mildew. This species is widespread all over the world due to its very good adaptability and can be regarded as a potential source of resistance to fungal diseases, including powdery mildew. The conducted research has shown that A. fatua is a species with a low level of resistance to powdery mildew when compared to other wild species of the genus Avena L. A total of 251 accessions were evaluated, and only 23 were identified as resistant to the individual isolates used in the host-pathogen tests. It follows that resistance to powdery mildew is not common among wild Avena species, and its good environmental adaptation is not associated to resistance to powdery mildew.

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“…Complete resistance to specific races of rust is provided by major genes via a gene-for-gene interaction (Flor 1955). However, when deployed singly these genes can be short lived, which is confirmed by studies carried out in USA, Canada and Australia where Pc genes are constantly incorporated into oat breeding programs (Cabral et al 2014). Virulence against cultivars with only one effective resistance gene may occur quickly as in the case of 'Triple Crown' possessing Pc48 (Chong and Zegeye 2004).…”

Section: Discussionmentioning

confidence: 95%

“…Effective 'pyramids' of this combination have been created with additional crown rust resistance genes. Pc38+Pc39 with Pc50 in 'Cleanleaf' were unbroken for 3 years (Park 2013) and with Pc68 in 'AC Assiniboia' as well as 'AC Medallion' and many other cultivars resulted in 10 years resistance to crown rust in oats (Cabral et al 2014). Pc68 was also successfully crossed with Pc94 in 'Leggett' (Mitchell Fetch et al 2007) and remains effective in contrast to Pc68 used as a single crown rust resistance gene in 'Moola' and 'Graza 68' which was broken after 1-2 years (Park 2013).…”

Section: Discussionmentioning

confidence: 99%

Puccinia coronata f.sp. avenae VIRULENCE IN CENTRAL AND SOUTH-EASTERN POLAND IN 2014

Sowa¹,

Paczos-Grzęda²

2017

Folia Pomer. Univ. Technol. Stetin., Agric., Aliment., Pisc., Z

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Streszczenie. Niemal w każdym regionie uprawy owsa infekcja grzybem Puccinia coronata f. sp. avenae powoduje utratę plonu. Łagodne zimy i mokre lata sprzyjają infekcji, dlatego rdza koronowa pojawia się w Polsce co roku, powodując duże straty w ilości i jakości ziarna. Najlepszym sposobem kontrolowania rdzy koronowej jest wykorzystanie odporności warunkowanej genetycznie. Jest to sposób korzystny pod względem ekonomicznym, a także przyjazny dla środowiska. Stała ewolucja patogenu wymusza monitorowanie jego zjadliwości. Dlatego celem niniejszej pracy było scharakteryzowanie zjadliwości populacji P. coronata zebranych latem 2014 roku w centralnej i południowo-wschodniej Polsce w celu oceny efektywności znanych genów warunkujących odporność na rdzę koronową. Wirulencję populacji badano, wykorzystując siewki 27 linii referencyjnych z różnymi genami odporności oraz testy gospodarz-patogen prowadzone w warunkach kontrolowanej temperatury, wilgotności i oświetlenia. Populacje rdzy koronowej z różnych regionów uprawy owsa były zróżnicowane. Żadna z testowanych populacji P. coronata nie przełamywała odporności warunkowanej genami: Pc50, Pc52, Pc59, Pc60, Pc71, Pc91 oraz Pc94. Tylko jedna populacja grzyba była zjadliwa w stosunku do genu Pc70. Sporadycznie identyfikowano zjadliwość w odniesieniu do genów Pc48 i Pc68. Stosunkowo wysoką skutecznością charakteryzowały się również geny Pc39, Pc51, Pc56, Pc57, Pc58 i Pc104. Na podstawie uzyskanych wyników można stwierdzić, że populacje rdzy koronowej, występujące w centralnej i południowo-wschodniej Polsce, charakteryzuje stosunkowo niska wirulencja, w związku z czym wiele źródeł odporności na P. coronata jest nadal efektywnych, Geny Pc mogą być wprowadzane i łączone w formie piramid genowych w polskich odmianach owsa w celu zwiększenia spektrum odporności na rdzę koronową.

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Oat Fungal Diseases and the Application of Molecular Marker Technology for Their Control

Cited by 15 publications

References 87 publications

Puccinia coronata f. sp. avenae: a threat to global oat production

Puccinia coronata f. sp. avenae: a threat to global oat production

Is Every Wild Species a Rich Source of Disease Resistance? Avena fatua L.—Potential Donor of Resistance to Powdery Mildew

Puccinia coronata f.sp. avenae VIRULENCE IN CENTRAL AND SOUTH-EASTERN POLAND IN 2014

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