Resistances to downy mildew (Hyaloperonospora brassicae) in diverse Brassicaceae offer new disease management opportunities for oilseed and vegetable crucifer industries

Akeel E. Mohammed, Ming Pei You, Surinder S. Banga, Martin J. Barbetti

Research output: Contribution to journalArticle

Abstract

Some 154 Brassicaceae genotypes (78 Brassica napus, 38 B. carinata, 25 B. juncea, three Raphanus sativus, two each of Rapistrum rugosum and B. incana and one each of Crambe abyssinica, B. fruticulosa, Hirschfeldia incana, B. insularis, B. oleracea and Sinapis arvensis), were inoculated with a mixture of seven isolates of Hyaloperonospora brassicae to identify effective host resistances. Many highly resistant genotypes were identified, particularly R. sativus Krasnodar Market B (%Disease index 6.6) and Pegletta (%DI 9.0); B. carinata Tamn Rex-sel Green (%DI 7.6), BRA926/18 (%DI 9.7) and PI360884 (%DI 9.7); and B. juncea, Ringot1 (%DI 9.7). A further 13 B. carinata, seven B. juncea and single R. sativus (Boss) and B. incana (UPM6563) genotypes were also highly resistant (%DI 11.1), as were B. oleracea CPI106844 (%DI 14.6) and Crambe abyssinica (%DI 17.4). Almost all B. carinata and B. juncea genotypes showed high resistance (%DI 7.6-22.2). In contrast, B. napus genotypes showed wide ranging responses, from high resistance in SN-8 (%DI 22.2%) to extreme susceptibility in Hyola 450TT and Thunder TT (%DI 83.7, 95.5, respectively). R. rugosum, B. fruticulosa, H. incana and B. insularis genotypes ranged from moderately to highly susceptible (%DI 55.2-78.8). This study highlights the ready availability of very high levels of pathotype-independent resistance across diverse Brassicaceae to H. brassicae, particularly R. sativus, B. carinata, B. juncea, B. oleracea and C. abyssinica. Resistances identified can be utilized as sources of resistance in oilseed and vegetable Brassicaceae breeding programs and/or directly deployed as new varieties where downy mildew is prevalent.

Original languageEnglish
Pages (from-to)915-929
Number of pages15
JournalEuropean Journal of Plant Pathology
Volume153
Issue number3
DOIs
Publication statusPublished - Mar 2019

Cite this

@article{6e5bb1185f334ce5b43f0fae378f4a9e,
title = "Resistances to downy mildew (Hyaloperonospora brassicae) in diverse Brassicaceae offer new disease management opportunities for oilseed and vegetable crucifer industries",
abstract = "Some 154 Brassicaceae genotypes (78 Brassica napus, 38 B. carinata, 25 B. juncea, three Raphanus sativus, two each of Rapistrum rugosum and B. incana and one each of Crambe abyssinica, B. fruticulosa, Hirschfeldia incana, B. insularis, B. oleracea and Sinapis arvensis), were inoculated with a mixture of seven isolates of Hyaloperonospora brassicae to identify effective host resistances. Many highly resistant genotypes were identified, particularly R. sativus Krasnodar Market B ({\%}Disease index 6.6) and Pegletta ({\%}DI 9.0); B. carinata Tamn Rex-sel Green ({\%}DI 7.6), BRA926/18 ({\%}DI 9.7) and PI360884 ({\%}DI 9.7); and B. juncea, Ringot1 ({\%}DI 9.7). A further 13 B. carinata, seven B. juncea and single R. sativus (Boss) and B. incana (UPM6563) genotypes were also highly resistant ({\%}DI 11.1), as were B. oleracea CPI106844 ({\%}DI 14.6) and Crambe abyssinica ({\%}DI 17.4). Almost all B. carinata and B. juncea genotypes showed high resistance ({\%}DI 7.6-22.2). In contrast, B. napus genotypes showed wide ranging responses, from high resistance in SN-8 ({\%}DI 22.2{\%}) to extreme susceptibility in Hyola 450TT and Thunder TT ({\%}DI 83.7, 95.5, respectively). R. rugosum, B. fruticulosa, H. incana and B. insularis genotypes ranged from moderately to highly susceptible ({\%}DI 55.2-78.8). This study highlights the ready availability of very high levels of pathotype-independent resistance across diverse Brassicaceae to H. brassicae, particularly R. sativus, B. carinata, B. juncea, B. oleracea and C. abyssinica. Resistances identified can be utilized as sources of resistance in oilseed and vegetable Brassicaceae breeding programs and/or directly deployed as new varieties where downy mildew is prevalent.",
keywords = "Hyaloperonospora brassicae, Downy mildew, Weedy crucifers, Brassicaceae, Brassica carinata, B. napus, B. juncea, Host resistance, OLERACEA CONVAR. BOTRYTIS, ADULT-PLANT RESISTANCE, PERONOSPORA-PARASITICA, PSEUDOCERCOSPORELLA-CAPSELLAE, SCLEROTINIA-SCLEROTIORUM, NAPUS, COTYLEDON, INHERITANCE, JUNCEA, ACCESSIONS",
author = "Mohammed, {Akeel E.} and You, {Ming Pei} and Banga, {Surinder S.} and Barbetti, {Martin J.}",
year = "2019",
month = "3",
doi = "10.1007/s10658-018-01609-7",
language = "English",
volume = "153",
pages = "915--929",
journal = "European Journal of Plant Pathology",
issn = "0929-1873",
publisher = "Springer",
number = "3",

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Resistances to downy mildew (Hyaloperonospora brassicae) in diverse Brassicaceae offer new disease management opportunities for oilseed and vegetable crucifer industries. / Mohammed, Akeel E.; You, Ming Pei; Banga, Surinder S.; Barbetti, Martin J.

In: European Journal of Plant Pathology, Vol. 153, No. 3, 03.2019, p. 915-929.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Resistances to downy mildew (Hyaloperonospora brassicae) in diverse Brassicaceae offer new disease management opportunities for oilseed and vegetable crucifer industries

AU - Mohammed, Akeel E.

AU - You, Ming Pei

AU - Banga, Surinder S.

AU - Barbetti, Martin J.

PY - 2019/3

Y1 - 2019/3

N2 - Some 154 Brassicaceae genotypes (78 Brassica napus, 38 B. carinata, 25 B. juncea, three Raphanus sativus, two each of Rapistrum rugosum and B. incana and one each of Crambe abyssinica, B. fruticulosa, Hirschfeldia incana, B. insularis, B. oleracea and Sinapis arvensis), were inoculated with a mixture of seven isolates of Hyaloperonospora brassicae to identify effective host resistances. Many highly resistant genotypes were identified, particularly R. sativus Krasnodar Market B (%Disease index 6.6) and Pegletta (%DI 9.0); B. carinata Tamn Rex-sel Green (%DI 7.6), BRA926/18 (%DI 9.7) and PI360884 (%DI 9.7); and B. juncea, Ringot1 (%DI 9.7). A further 13 B. carinata, seven B. juncea and single R. sativus (Boss) and B. incana (UPM6563) genotypes were also highly resistant (%DI 11.1), as were B. oleracea CPI106844 (%DI 14.6) and Crambe abyssinica (%DI 17.4). Almost all B. carinata and B. juncea genotypes showed high resistance (%DI 7.6-22.2). In contrast, B. napus genotypes showed wide ranging responses, from high resistance in SN-8 (%DI 22.2%) to extreme susceptibility in Hyola 450TT and Thunder TT (%DI 83.7, 95.5, respectively). R. rugosum, B. fruticulosa, H. incana and B. insularis genotypes ranged from moderately to highly susceptible (%DI 55.2-78.8). This study highlights the ready availability of very high levels of pathotype-independent resistance across diverse Brassicaceae to H. brassicae, particularly R. sativus, B. carinata, B. juncea, B. oleracea and C. abyssinica. Resistances identified can be utilized as sources of resistance in oilseed and vegetable Brassicaceae breeding programs and/or directly deployed as new varieties where downy mildew is prevalent.

AB - Some 154 Brassicaceae genotypes (78 Brassica napus, 38 B. carinata, 25 B. juncea, three Raphanus sativus, two each of Rapistrum rugosum and B. incana and one each of Crambe abyssinica, B. fruticulosa, Hirschfeldia incana, B. insularis, B. oleracea and Sinapis arvensis), were inoculated with a mixture of seven isolates of Hyaloperonospora brassicae to identify effective host resistances. Many highly resistant genotypes were identified, particularly R. sativus Krasnodar Market B (%Disease index 6.6) and Pegletta (%DI 9.0); B. carinata Tamn Rex-sel Green (%DI 7.6), BRA926/18 (%DI 9.7) and PI360884 (%DI 9.7); and B. juncea, Ringot1 (%DI 9.7). A further 13 B. carinata, seven B. juncea and single R. sativus (Boss) and B. incana (UPM6563) genotypes were also highly resistant (%DI 11.1), as were B. oleracea CPI106844 (%DI 14.6) and Crambe abyssinica (%DI 17.4). Almost all B. carinata and B. juncea genotypes showed high resistance (%DI 7.6-22.2). In contrast, B. napus genotypes showed wide ranging responses, from high resistance in SN-8 (%DI 22.2%) to extreme susceptibility in Hyola 450TT and Thunder TT (%DI 83.7, 95.5, respectively). R. rugosum, B. fruticulosa, H. incana and B. insularis genotypes ranged from moderately to highly susceptible (%DI 55.2-78.8). This study highlights the ready availability of very high levels of pathotype-independent resistance across diverse Brassicaceae to H. brassicae, particularly R. sativus, B. carinata, B. juncea, B. oleracea and C. abyssinica. Resistances identified can be utilized as sources of resistance in oilseed and vegetable Brassicaceae breeding programs and/or directly deployed as new varieties where downy mildew is prevalent.

KW - Hyaloperonospora brassicae

KW - Downy mildew

KW - Weedy crucifers

KW - Brassicaceae

KW - Brassica carinata

KW - B. napus

KW - B. juncea

KW - Host resistance

KW - OLERACEA CONVAR. BOTRYTIS

KW - ADULT-PLANT RESISTANCE

KW - PERONOSPORA-PARASITICA

KW - PSEUDOCERCOSPORELLA-CAPSELLAE

KW - SCLEROTINIA-SCLEROTIORUM

KW - NAPUS

KW - COTYLEDON

KW - INHERITANCE

KW - JUNCEA

KW - ACCESSIONS

U2 - 10.1007/s10658-018-01609-7

DO - 10.1007/s10658-018-01609-7

M3 - Article

VL - 153

SP - 915

EP - 929

JO - European Journal of Plant Pathology

JF - European Journal of Plant Pathology

SN - 0929-1873

IS - 3

ER -