Invited review: Genomic selection for small ruminants in developed countries: how applicable for the rest of the world?

cg.contactr.mrode@cgiar.orgen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Livestock Research Institute - ILRIen_US
cg.contributor.centerSwedish University of Agricultural Sciences - SLUen_US
cg.contributor.centerBiosciences Eastern and Central Africa - BeCAen_US
cg.contributor.centerBahir Dar University, Biotechnology Research Institute - BDU - BRIen_US
cg.contributor.centerScotland's Rural College - SRUCen_US
cg.contributor.crpCGIAR Research Program on Livestock Agri-Food Systems - Livestocken_US
cg.contributor.funderInternational Livestock Research Institute - ILRIen_US
cg.contributor.projectCGIAR Research Program on Livestock Agri-Food Systemsen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.countryETen_US
cg.coverage.countryKEen_US
cg.coverage.regionEastern Africaen_US
cg.creator.idMrode, Raphael: 0000-0003-1964-5653en_US
cg.creator.idMwacharo, Joram: 0000-0001-6981-8140en_US
cg.identifier.doihttps://dx.doi.org/10.1017/S1751731117003688en_US
cg.isijournalISI Journalen_US
cg.issn1751-7311en_US
cg.issue7en_US
cg.journalanimalen_US
cg.subject.agrovocsmall ruminantsen_US
cg.subject.agrovocgenomic selectionen_US
cg.subject.agrovocsignatures of selectionen_US
cg.subject.agrovocGoatsen_US
cg.volume12en_US
dc.contributorTarekegn, G. M.en_US
dc.contributorMwacharo, Joramen_US
dc.contributorDjikeng, Appollinaireen_US
dc.creatorMrode, Raphaelen_US
dc.date.accessioned2019-01-21T19:00:20Z
dc.date.available2019-01-21T19:00:20Z
dc.description.abstractImproved management and use of estimated breeding values in breeding programmes, have resulted in rapid genetic progress for small ruminants (SR) in Europe and other developed countries. The development of single nucleotide polymorphisms chips opened opportunities for genomic selection (GS) in SR in these countries. Initially focused on production traits (growth and milk), GS has been extended to functional traits (reproductive performance, disease resistance and meat quality). The GS systems have been characterized by smaller reference populations compared with those of dairy cattle and consisting mostly of cross- or multi-breed populations. Molecular information has resulted in gains in accuracy of between 0.05 and 0.27 and proved useful in parentage verification and the identification of QTLs for economically important traits. Except for a few established breeds with some degree of infrastructure, the basic building blocks to support conventional breeding programmes in small holder systems are lacking in most developing countries. In these systems, molecular data could offer quick wins in undertaking parentage verification and genetic evaluations using G matrix, and determination of breed composition. The development of next-generation molecular tools has prompted investigations on genome-wide signatures of selection for mainly adaptive and reproduction traits in SR in developing countries. Here, the relevance of the developments and application of GS and other molecular tools in developed countries to developing countries context is examined. Worth noting is that in the latter, the application of GS in SR will not be a ‘one-size fits all’ scenario. For breeds with some degree of conventional genetic improvement, classical GS may be feasible. In small holder systems, where production is key, community-based breeding programmes can provide the framework to implement GS. However, in fragile growth systems, for example those found in marginal environments, innovative GS to maximize adaptive diversity will be required. A cost-benefit analysis should accompany any strategy of implementing GS in these systems.en_US
dc.formatPDFen_US
dc.identifierhttps://www.cambridge.org/core/journals/animal/article/invited-review-genomic-selection-for-small-ruminants-in-developed-countries-how-applicable-for-the-rest-of-the-world/749F285DFC56733D90A92A75DFF7C00Cen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/1a3707f3857a657af8aa7c1dd2c26f21/v/6a1f7ea742856e16bc84e53e1559e8afen_US
dc.identifier.citationRaphael Mrode, G. M. Tarekegn, Joram Mwacharo, Appollinaire Djikeng. (18/1/2018). Invited review: Genomic selection for small ruminants in developed countries: how applicable for the rest of the world. animal, 12 (7), pp. 1333-1340.en_US
dc.identifier.statusOpen accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/9249
dc.languageenen_US
dc.publisherCambridge University Press (CUP): STM Journals - No Cambridge Openen_US
dc.rightsCC-BY-4.0en_US
dc.sourceanimal;12,(2018) Pagination 1333-1340en_US
dc.subjectqtlen_US
dc.titleInvited review: Genomic selection for small ruminants in developed countries: how applicable for the rest of the world?en_US
dc.typeJournal Articleen_US
dcterms.available2018-01-18en_US
dcterms.extent1333-1340en_US
mel.impact-factor1.870en_US
mel.project.openhttps://mel.cgiar.org/projects/237en_US

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