A reverse introgression and genomics strategy to develop and characterize chickpea germplasm for yield and climate-resilience traits
- University of Saskatchewan
Dr. Bunyamin Tar'an
Lead Investigator(s) Institution
University of Saskatchewan - CDC
To substantially leverage the resources and expertise of the world's major chickpea improvement programs including the CGIAR's pulse program at ICRISAT (Hyderabad, India) and its mandate country (Ethiopia) and the National Programs in Turkey, Australia and Canada.
This research is part of a larger research collaboration coordinated by UC Davis, USA, involving partners from other universities and research institutions in USA, Turkey, Australia, India and Ethiopia. The research at the CDC started with the development of 40 F2 populations from crosses between elite cultivars (CDC Leader and CDC Consul) with each of the 20 accessions of the newly collected Cicer reticulatum. The F2 populations derived from crossing with CDC Leader were screened for cultivated alleles for early flowering and upright growth habit. The most diverse F2 plants within each of 20 populations that had a fixed flowering and growth habit for the cultivated type were selected and intercrossed to create diverse progeny lines. A total of 600 F5’ diverse families were selected and characterized for important agronomic and nutritional traits under field conditions in 2017. The project team also developed unselected F2 populations for studying the genetics of micronutrient accumulation in seeds, and developed some additional lines from intercrossing the F2 plants across different populations (inter-populations), creating a wealth of genetic resources for breeding applications. The project team completed a systematic evaluation of the parental lines and their progeny for a series of agronomic and nutritional quality traits and identified accessions of the C. reticulatum and their progeny with better cold tolerance than the cultivated lines, as well as high iron and other nutrient content in the seeds. The diverse genetic materials and the information on SNP-trait associations are invaluable for selection for continuing genetic improvement in the chickpea breeding program at the CDC.
Duration/Timeline of Project (Year to Year)
2014 - 2018
Saskatchewan Ministry of Agriculture - Agriculture Development Fund, Western Grains Research Foundation
Total Project Cost