http://oar.icrisat.org/id/eprint/11378 2020-05-18T11:41:24Z info:eu-repo/semantics/descriptiveMetadata http://oar.icrisat.org/11378/ Improvement of three popular Indian groundnut varieties for foliar disease resistance and high oleic acid using SSR markers and SNP array in marker-assisted backcrossing Shasidhar, Y Variath, M T Vishwakarma, M K Manohar, S S Gangurde, S S Sriswathi, M Sudini, H Dobariya, K L Bera, S K Radhakrishnan, T Pandey, M K Janila, P Varshney, R K Groundnut Genetics and Genomics Plant Disease Legume Crops Foliar fungal diseases (rust and late leaf spot) incur large yield losses, in addition to the deterioration of fodder quality in groundnut worldwide. High oleic acid has emerged as a key market trait in groundnut, as it increases the shelf life of the produce/products in addition to providing health benefits to consumers. Marker-assisted backcrossing (MABC) is the most successful approach to introgressing or pyramiding one or more traits using traitlinked markers. We used MABC to improve three popular Indian cultivars (GJG 9, GG 20, and GJGHPS 1) for foliar disease resistance (FDR) and high oleic acid content. A total of 22 BC3F4 and 30 BC2F4 introgression lines (ILs) for FDR and 46 BC3F4 and 41 BC2F4 ILs for high oleic acid were developed. Recurrent parent genome analysis using the 58 K Axiom_Arachis array identified several lines showing upto 94% of genome recovery among second and third backcross progenies. Phenotyping of these ILs revealed FDR scores comparable to the resistant parent, GPBD 4, and ILs with high (~80%) oleic acid in addition to high genome recovery. These ILs provide further opportunities for pyramiding FDR and high oleic acid in all three genetic backgrounds as well as for conducting multi-location yield trials for further evaluation and release for cultivation in target regions of India. KeAi 2020-02 Article PeerReviewed application/pdf en http://oar.icrisat.org/11378/1/main.pdf Shasidhar, Y and Variath, M T and Vishwakarma, M K and Manohar, S S and Gangurde, S S and Sriswathi, M and Sudini, H and Dobariya, K L and Bera, S K and Radhakrishnan, T and Pandey, M K and Janila, P and Varshney, R K (2020) Improvement of three popular Indian groundnut varieties for foliar disease resistance and high oleic acid using SSR markers and SNP array in marker-assisted backcrossing. The Crop Journal (TSI), 8 (1). pp. 1-15. ISSN 22145141 https://doi.org/10.1016/j.cj.2019.07.001 doi:10.1016/j.cj.2019.07.001 info:eu-repo/semantics/objectFile info:eu-repo/semantics/humanStartPage