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G7010.06.01: Accelerating development of genomic resources and strengthening NARS partner capacities for enhancing adoption of molecular breeding for drought tolerance in chickpea

Varshney, R.K.ORCID: 0000-0002-4562-9131, Thudi, M., Kumar, C.S., Saxena, R., Gaur, P., Kimurto, P. and Fikre, A. (2011) G7010.06.01: Accelerating development of genomic resources and strengthening NARS partner capacities for enhancing adoption of molecular breeding for drought tolerance in chickpea. Project Updates. CGIAR Generation Challenge Programme .

Abstract

Marker assisted backcrossing (MABC) and marker assisted recurrent selection (MARS) - two most important molecular breeding approaches are gaining importance in the recent past. These are extensively being employed for more precise selection and introgression of desired traits into elite cultivars in variety of crop plants. Chickpea is most important food legume in the arid and semi-arid regions especially in Sub-Saharan Africa (SSA) and South Asia (SA). Drought is one of major constraints to chickpea production. Significant genomic tools like SSRs (simple sequence repeats), SNPs (single nucleotide polymorphisms) and DArT (Diversity Array Technologies) arrays and a hot spot containing QTLs for several drought related traits has been identified in Phase I of Tropical Legumes –I (TL-I). For efficient molecular breeding especially for MABC, while markers closely linked with QTLs are desirable, cost effective marker (e.g. SNP) genotyping platform are critical for successful implementation of MARS and background selection of MABC. Costeffective KASPar genotyping assays were developed and validated for a set of 2005 high confidence SNPs in collaboration with Integrated Breeding Platform. Efforts are underway for development of genome-wide physical map for chickpea. Two MSc students (one in Kenya and the other in Ethiopia) and one PhD student (Kenya) have already started their work. One workshop “Modern Breeding Methodologies for Chickpea Improvement” was held at ICRISAT, Patancheru. Through this workshop, sixteen scientists representing five countries from Africa and four countries from Asia were trained in use of modern genomics tools for chickpea improvement.

Item Type: Others
Publisher: CIMMYT
Publisher's Website: https://www.generationcp.org/
URI: http://researchrepository.murdoch.edu.au/id/eprint/63317
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