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Agriculture 2018, 8(7), 89; https://doi.org/10.3390/agriculture8070089

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

1
RTB, Led by the International Potato Center, Apartado 1558, Lima 12, Peru
2
IITA, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria
3
CIP, Apartado 1558, Lima 12, Peru
4
CIAT, Km 17, Recta Cali–Palmira CP 763537, Apartado Aéreo 6713, Cali, Colombia
5
Bioversity, Parc Scientifique Agropolis II, 1990 Boulevard de la Lironde, 34397 Montpellier, France
*
Author to whom correspondence should be addressed.
Received: 27 May 2018 / Revised: 19 June 2018 / Accepted: 20 June 2018 / Published: 22 June 2018
(This article belongs to the Special Issue Plant Breeding in Agriculture)
Full-Text   |   PDF [310 KB, uploaded 22 June 2018]

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. View Full-Text
Keywords: RTB; plant breeding; genomics-assisted breeding; genomic selection; GWAS RTB; plant breeding; genomics-assisted breeding; genomic selection; GWAS
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Friedmann, M.; Asfaw, A.; Anglin, N.L.; Becerra, L.A.; Bhattacharjee, R.; Brown, A.; Carey, E.; Ferguson, M.E.; Gemenet, D.; Lindqvist-Kreuze, H.; Rabbi, I.; Rouard, M.; Swennen, R.; Thiele, G. Genomics-Assisted Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB). Agriculture 2018, 8, 89.

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