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Abstract Detail



Plant Secondary Chemistry: from Biochemistry to Applications

Debnath, Samir C. [1].

Biodiversity andantioxidant properties in berry crops.

Fragaria (strawberry; Rosaceae), Rubus (brambles: raspberry and blackberry; Rosaceae) and Vaccinium (blueberry, cranberry and lingonberry; Ericaceae) are important berry crop genera worldwide. They are rich in vitamin C, cellulose and pectin, and a potential source of natural anthocyanin antioxidants. Berry crops are believed to have important therapeutic values, including antitumor, antiulcer, antioxidant and antiinflammatory activities. As in other crops, wide biodiversity in berry crops is required for their survival and adaptation to changing environments. Utilization of diverse, locally adapted germplasm with high antioxidant activity is required for the future viability of quality berry production. There is a pressing need to develop reliable methods for identifying high antioxidant containing berry germplasm and for assessing genetic biodiversity for berry improvement programs and proprietary-rights protection. The use of DNA-based markers allows direct comparison of different genetic material independent of environmental influences. This paper presents the progress in-depth of various aspects of antioxidant activity and molecular diversity analyses in wild and cultivated berry species. Berry genotypes showed a wide range of variability although multiple factors can affect the antioxidant capacity. Molecular markers detected a sufficient degree of polymorphism to differentiate among wild clones and cultivars, making these technologies valuable for cultivar identification and for the more efficient choice of parents in berry breeding programs with high antioxidant activity.


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1 - Agriculture and Agri-Food Canada, Atlantic Cool Climate Crop Research Centre, 308 Brookfield Road, Bldg 25, St. John's, NL, A1E 0B2, Canada

Keywords:
Blueberry
Cranberry
Lingonberry
Raspberry
Strawberry
Molecular markers
Antioxidants.

Presentation Type: Symposium Presentation
Session: SY01
Location: Hall C/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 9:15 AM
Number: SY01004
Abstract ID:162
Candidate for Awards:None


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