Complete resistance to leaf and staghead disease in Australian Brassica juncea germplasm exposed to infection by Albugo candida (white rust)

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    Abstract

    White rust (Albugo candida) can be a highly destructive disease of Brassica juncea. Identification of new sources of host resistance to A. candida is a key priority in Australia for the B. juncea breeding program. A few genotypes from China and Australia have been recently identified with useful levels of resistance to A. candida. In this study, a line of B. juncea (JM06011) from Australia showed complete resistance to white rust disease during the whole growing season and overall performed better than three Chinese genotypes (CBJ-001, CBJ-003, CBJ-004) and one other Australian genotype (JR049) that were previously reported to be promising and that were used as resistant controls. JM06011 showed no symptoms of the disease on leaves and a total absence of stagheads, and this is the first report of complete resistance to white rust among Australian B. juncea germplasm. More Australian genotypes, JM06010, JM06021, JM06004 and JM06013, showed a lower but still useful level of resistance to A. candida based on both incidence and severity of disease on leaves when screened under the natural environmental conditions existing in Western Australia. Overall, genotypes from China were relatively more susceptible than those from Australia with the exception of the three resistant controls. There was no relationship between foliar disease and staghead incidence across the genotypes tested.
    Original languageEnglish
    Pages (from-to)63-66
    JournalAustralasian Plant Pathology
    Volume38
    Issue number1
    DOIs
    Publication statusPublished - 2009

    Fingerprint

    Albugo candida
    Brassica juncea
    germplasm
    genotype
    infection
    leaves
    rust diseases
    China
    foliar diseases
    disease incidence
    Western Australia
    disease severity
    signs and symptoms (plants)
    growing season
    incidence
    environmental factors
    breeding

    Cite this

    @article{fdecb5ce486843e4ae16cd632552c4ac,
    title = "Complete resistance to leaf and staghead disease in Australian Brassica juncea germplasm exposed to infection by Albugo candida (white rust)",
    abstract = "White rust (Albugo candida) can be a highly destructive disease of Brassica juncea. Identification of new sources of host resistance to A. candida is a key priority in Australia for the B. juncea breeding program. A few genotypes from China and Australia have been recently identified with useful levels of resistance to A. candida. In this study, a line of B. juncea (JM06011) from Australia showed complete resistance to white rust disease during the whole growing season and overall performed better than three Chinese genotypes (CBJ-001, CBJ-003, CBJ-004) and one other Australian genotype (JR049) that were previously reported to be promising and that were used as resistant controls. JM06011 showed no symptoms of the disease on leaves and a total absence of stagheads, and this is the first report of complete resistance to white rust among Australian B. juncea germplasm. More Australian genotypes, JM06010, JM06021, JM06004 and JM06013, showed a lower but still useful level of resistance to A. candida based on both incidence and severity of disease on leaves when screened under the natural environmental conditions existing in Western Australia. Overall, genotypes from China were relatively more susceptible than those from Australia with the exception of the three resistant controls. There was no relationship between foliar disease and staghead incidence across the genotypes tested.",
    author = "Caixia Li and Krishnapillai Sivasithamparam and Martin Barbetti",
    year = "2009",
    doi = "10.1071/AP08078",
    language = "English",
    volume = "38",
    pages = "63--66",
    journal = "Australasian Plant Pathology",
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    TY - JOUR

    T1 - Complete resistance to leaf and staghead disease in Australian Brassica juncea germplasm exposed to infection by Albugo candida (white rust)

    AU - Li, Caixia

    AU - Sivasithamparam, Krishnapillai

    AU - Barbetti, Martin

    PY - 2009

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    N2 - White rust (Albugo candida) can be a highly destructive disease of Brassica juncea. Identification of new sources of host resistance to A. candida is a key priority in Australia for the B. juncea breeding program. A few genotypes from China and Australia have been recently identified with useful levels of resistance to A. candida. In this study, a line of B. juncea (JM06011) from Australia showed complete resistance to white rust disease during the whole growing season and overall performed better than three Chinese genotypes (CBJ-001, CBJ-003, CBJ-004) and one other Australian genotype (JR049) that were previously reported to be promising and that were used as resistant controls. JM06011 showed no symptoms of the disease on leaves and a total absence of stagheads, and this is the first report of complete resistance to white rust among Australian B. juncea germplasm. More Australian genotypes, JM06010, JM06021, JM06004 and JM06013, showed a lower but still useful level of resistance to A. candida based on both incidence and severity of disease on leaves when screened under the natural environmental conditions existing in Western Australia. Overall, genotypes from China were relatively more susceptible than those from Australia with the exception of the three resistant controls. There was no relationship between foliar disease and staghead incidence across the genotypes tested.

    AB - White rust (Albugo candida) can be a highly destructive disease of Brassica juncea. Identification of new sources of host resistance to A. candida is a key priority in Australia for the B. juncea breeding program. A few genotypes from China and Australia have been recently identified with useful levels of resistance to A. candida. In this study, a line of B. juncea (JM06011) from Australia showed complete resistance to white rust disease during the whole growing season and overall performed better than three Chinese genotypes (CBJ-001, CBJ-003, CBJ-004) and one other Australian genotype (JR049) that were previously reported to be promising and that were used as resistant controls. JM06011 showed no symptoms of the disease on leaves and a total absence of stagheads, and this is the first report of complete resistance to white rust among Australian B. juncea germplasm. More Australian genotypes, JM06010, JM06021, JM06004 and JM06013, showed a lower but still useful level of resistance to A. candida based on both incidence and severity of disease on leaves when screened under the natural environmental conditions existing in Western Australia. Overall, genotypes from China were relatively more susceptible than those from Australia with the exception of the three resistant controls. There was no relationship between foliar disease and staghead incidence across the genotypes tested.

    U2 - 10.1071/AP08078

    DO - 10.1071/AP08078

    M3 - Article

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