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Genomics-Assisted Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB)

Author

Listed:
  • Michael Friedmann

    (RTB, Led by the International Potato Center, Apartado 1558, Lima 12, Peru)

  • Asrat Asfaw

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Noelle L. Anglin

    (CIP, Apartado 1558, Lima 12, Peru)

  • Luis Augusto Becerra

    (CIAT, Km 17, Recta Cali–Palmira CP 763537, Apartado Aéreo 6713, Cali, Colombia)

  • Ranjana Bhattacharjee

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Allan Brown

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Edward Carey

    (CIP, Apartado 1558, Lima 12, Peru)

  • Morag Elizabeth Ferguson

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Dorcus Gemenet

    (CIP, Apartado 1558, Lima 12, Peru)

  • Hanele Lindqvist-Kreuze

    (CIP, Apartado 1558, Lima 12, Peru)

  • Ismail Rabbi

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Mathieu Rouard

    (Bioversity, Parc Scientifique Agropolis II, 1990 Boulevard de la Lironde, 34397 Montpellier, France)

  • Rony Swennen

    (IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria)

  • Graham Thiele

    (RTB, Led by the International Potato Center, Apartado 1558, Lima 12, Peru)

Abstract

Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB) targets highly diverse biotic and abiotic constraints, whilst meeting complex end-user quality preferences to improve livelihoods of beneficiaries in developing countries. Achieving breeding targets and increasing the rate of genetic gains for these vegetatively propagated crops, with long breeding cycles, and genomes with high heterozygosity and different ploidy levels, is challenging. Cheaper sequencing opens possibilities to apply genomics tools for complex traits, such as yield, climate resilience, and quality traits. Therefore, across the RTB program, genomic resources and approaches, including sequenced draft genomes, SNP discovery, quantitative trait loci (QTL) mapping, genome-wide association studies (GWAS), and genomic selection (GS), are at different stages of development and implementation. For some crops, marker-assisted selection (MAS) is being implemented, and GS has passed the proof-of-concept stage. Depending on the traits being selected for using prediction models, breeding schemes will most likely have to incorporate both GS and phenotyping for other traits into the workflows leading to varietal development.

Suggested Citation

  • Michael Friedmann & Asrat Asfaw & Noelle L. Anglin & Luis Augusto Becerra & Ranjana Bhattacharjee & Allan Brown & Edward Carey & Morag Elizabeth Ferguson & Dorcus Gemenet & Hanele Lindqvist-Kreuze & I, 2018. "Genomics-Assisted Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB)," Agriculture, MDPI, vol. 8(7), pages 1-24, June.
    • Handle: RePEc:gam:jagris:v:8:y:2018:i:7:p:89-:d:153937
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    References listed on IDEAS

    as
    1. van Asten, P.J.A. & Fermont, A.M. & Taulya, G., 2011. "Drought is a major yield loss factor for rainfed East African highland banana," Agricultural Water Management, Elsevier, vol. 98(4), pages 541-552, February.
    2. Michael W. Bevan & Cristobal Uauy & Brande B. H. Wulff & Ji Zhou & Ksenia Krasileva & Matthew D. Clark, 2017. "Genomic innovation for crop improvement," Nature, Nature, vol. 543(7645), pages 346-354, March.
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