Implementation of an accelerated genomic selection scheme in the ICARDA durum wheat breeding program Abstract uri icon

abstract

  • Hafssa Kabbaj : h.kabbaj@cgiar.org, Zakaria kehel : z.kehel@cgiar.org, Khaled Al shamaa: k.el-shamaa@cgiar.org. Amadou Tidiane Sall : tidianeassall11@gmail.com, Rodomiro Ortiz: rodomiro.ortiz@slu.se, Filippo bassi : f.bassi@cgiar.org

    Global wheat production needs to increase by approximately 1.5% yearly. Combining genomic selection and speed breeding appears the successful strategy to deliver this level of genetic gain, thereby ensuring the rapid recycling and the pyramiding of multiple target traits.

    An accelerated recurrent genomic selection scheme by full sib mating has been identified as the new breeding strategy for the ICARDA durum program to develop super lines to fit the needs of the six different mega product profiles from the Central and West Asia, North Africa, and West Africa.

    100 crosses are conducted yearly to initiate cycle-0 for the six MPPs. Where speed breeding is used for the generation advancement. At F4 generation, genomic selection is applied using 89 KASP SNPs, the selected lines are field tested as stage 0. In parallel, full-sib mating-cycle1 is begin. While stage 1 yield trials are tested at the targeted population of environments. Similarly cycle-2 is processed.

publication date

  • September 2024