Articles
Genotype variation in drought tolerance and associated DNA markers in Fragaria sp.
Article number
1315_18
Pages
119 – 124
Language
English
Abstract
Responses to drought in plants are extremely different according to their genetic background; inter- and intra-species variation in drought tolerance is described.
Adaptive mechanisms of drought-tolerant plants are mainly determined by genetic and metabolism characteristics.
In this study, a standard method for measurement of dehydration tolerance was established to evaluate the degree of drought tolerance in Fragaria genotypes, we performed a short-term water deficit experiment and determined leaf relative water content (RWC) and leaf water losing rate (WLR) as a quick screening method for monitoring of Fragaria genotypes in response to dehydration.
The Fragaria genotypes were characterized in their response to drought stress by measurement of two eco-physiological parameters associated with the leaf water status (leaf WLR and RWC) and DNA fingerprints were performed for selected Fragaria genotypes using AFLP and EST markers.
Finally, the correlation between specific DNA markers and leaf WLR and RWC and the possibility of using association mapping in a small set of Fragaria accessions to create a set of correlated markers to the physiological traits which can be involved in drought tolerance in Fragaria were tested.
Adaptive mechanisms of drought-tolerant plants are mainly determined by genetic and metabolism characteristics.
In this study, a standard method for measurement of dehydration tolerance was established to evaluate the degree of drought tolerance in Fragaria genotypes, we performed a short-term water deficit experiment and determined leaf relative water content (RWC) and leaf water losing rate (WLR) as a quick screening method for monitoring of Fragaria genotypes in response to dehydration.
The Fragaria genotypes were characterized in their response to drought stress by measurement of two eco-physiological parameters associated with the leaf water status (leaf WLR and RWC) and DNA fingerprints were performed for selected Fragaria genotypes using AFLP and EST markers.
Finally, the correlation between specific DNA markers and leaf WLR and RWC and the possibility of using association mapping in a small set of Fragaria accessions to create a set of correlated markers to the physiological traits which can be involved in drought tolerance in Fragaria were tested.
Publication
Authors
F. Razavi
Keywords
strawberry, drought stress, DNA markers, genetic control, marker assisted selection (MAS)
Groups involved
- Division Temperate Tree Fruits
- Division Vine and Berry Fruits
- Division Tropical and Subtropical Fruit and Nuts
- Division Ornamental Plants
- Division Plant-Environment Interactions in Field Systems
- Division Postharvest and Quality Assurance
- Division Horticulture for Development
- Division Precision Horticulture and Engineering
- Division Plant Genetic Resources, Breeding and Biotechnology
- Commission Cultivar Registration
- Division Horticulture for Human Health
- Division Greenhouse and Indoor Production Horticulture
- Division Landscape and Urban Horticulture
- Commission Banana
- Division Vegetables, Roots and Tubers
- Division Temperate Tree Nuts
- Commission Agroecology and Organic Farming Systems
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