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Screening and breeding for genetic resistance to anthracnose in mango

Bally, I. S. E. and Akem, C. N. and Dillon, N. L. and Grice, C. and Lakhesar, D. and Stockdale, K. (2013) Screening and breeding for genetic resistance to anthracnose in mango. In: Acta Horticulturae. International Society for Horticultural Science (ISHS), Leuven, Belgium, pp. 239-244. ISBN 0567-7572978-90-66054-38-7

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Article Link(s): http://www.actahort.org/books/992/992_31.htm

Abstract

Postharvest diseases remain a significant constraint to the transport, storage and marketing of mangoes. The two main ones are anthracnose and stem end rot. Anthracnose caused by Colletotrichum gloeosporioides is the more wide-spread of the two. Varieties within Mangifera indica are known to vary in their level of reactions to anthracnose; however, the best tolerance in current commercial cultivars is not sufficient to eliminate the need for pre- and postharvest fungicides treatments. A screening program was initiated in mango accessions in the Australian National Mango Genebank to look for any significant resistance to C. gloeosporioides in fruit as they ripened. Screening was conducted by rating reactions to natural infection of anthracnose and reactions to artificially inoculating fruit with virulent isolates of C. gloeosporioides. A range of reactions to the pathogen were identified, with strong resistance found in one accession of the species M. laurina. This accession was used as the pollen parent in a controlled crossing program with a M. indica hybrid from the Australian Mango Breeding Program (AMBP). Sixty successful hybrids between the species have been generated. The hybrid population will be screened for resistance to anthracnose and used for gene discovery investigations to identify markers for anthracnose resistance.

Item Type:Book Section
Business groups:Horticulture and Forestry Science
Additional Information:IX International Mango Symposium, Sanya, Hainan Island, China.
Keywords:QQ050Crop Produce Horticultural Crops (NEW March 2000) FF020Plant Breeding and Genetics FF060Plant Physiology and Biochemistry FF100Plant Production FF610Viral, Bacterial and Fungal Diseases of Plants (NEW March 2000) HH600Host Resistance and Immunity anthracnose cultivars disease resistance fungal diseases gene banks genes genetic markers hybrids mangoes plant breeding plant diseases plant pathogenic fungi plant pathogens Australia fungi Glomerella cingulata Mangifera indica Mangifera laurina APEC countries Australasia Oceania Commonwealth of Nations Developed Countries OECD Countries Glomerella Glomerellaceae Sordariomycetes Pezizomycotina Ascomycota fungi fungus eukaryotes Mangifera Anacardiaceae Sapindales dicotyledons angiosperms Spermatophyta plants
Subjects:Plant culture > Fruit and fruit culture
Science > Botany > Genetics
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Deposited On:09 Oct 2014 00:13
Last Modified:09 Oct 2014 00:13

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