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Abstract
ABSTRACT Groundnut (Arachis hypogaea L.) is an important oilseed crop. A specific type of groundnut, known as high-oleate groundnut, is particularly sought-after for its antioxidant properties and benefits to human health due to its favorable fatty acid profile. To breed high-oleic acid varieties of groundnut, two elite varieties of Tamil Nadu, India, TMVGn 13 and GJG 33, were hybridized with a high-oleic groundnut donor released in India, Girnar 4. The resulting progenies were then backcrossed with their recurrent parents for two generations, using marker-assisted backcross selection. Six progenies in the TMVGn 13 × Girnar 4 cross and nine progenies in the GJG 33 × Girnar 4 cross were identified as homozygous mutants for ahFAD2A and ahFAD2B genes, respectively. Three lines with high oleic acid content (>70%), good oil content (48–50%), and pod yield per plant were selected from these progenies. Following multi-location and adaptive research yield trials, these lines may be released as high-oleic acid varieties.
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