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Adapting clonally propagated crops to climatic changes: a global approach for taro (Colocasia esculenta (L.) Schott)

2017Journal article Open access
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dc.contributor.authorLebot, V.
dc.contributor.authorTuia, V.
dc.contributor.authorIvancic, A.
dc.contributor.authorJackson, G. V. H.
dc.contributor.authorSaborio, F.
dc.contributor.authorReyes, G.
dc.contributor.authorRodriguez, S.
dc.contributor.authorRobin, G.
dc.contributor.authorTraoré, R.
dc.contributor.authorAboagye, L.
dc.contributor.authorOnyeka, J.
dc.contributor.authorvan Rensburg, W.
dc.contributor.authorAndrianavalona, V.
dc.contributor.authorMukherjee, A.
dc.contributor.authorPrana, M. S.
dc.contributor.authorFerraren, D.
dc.contributor.authorKomolong, B.
dc.contributor.authorLawac, F.
dc.contributor.authorWinter, S.
dc.contributor.authorCarvalho, M. A. A. Pinheiro de
dc.contributor.authorIosefa, T.
dc.date.accessioned2021-03-15T11:35:47Z
dc.date.available2021-03-15T11:35:47Z
dc.date.issued2017
dc.description.abstractClonally propagated crop species are less adaptable to environmental changes than those propagating sexually. DNA studies have shown that in all countries where taro (Colocasia esculenta (L.) Schott) has been introduced clonally its genetic base is narrow. As genetic variation is the most important source of adaptive potential, it appears interesting to attempt to increase genetic and phenotypic diversity to strengthen smallholders’ capacity to adapt to climatic changes. A global experiment, involving 14 countries from America, Africa, Asia and the Pacific was conducted to test this approach. Every country received a set of 50 indexed genotypes in vitro assembling significant genetic diversity. After onstation agronomic evaluation trials, the best genotypes were distributed to farmers for participatory on-farm evaluation. Results indicated that hybrids tolerant to taro leaf blight (TLB, Phytophthora colocasiae Raciborski), developed by Hawaii, Papua New Guinea and Samoa breeding programmes outperformed local cultivars in most locations. However, several elite cultivars from SE Asia, also tolerant to TLB, outperformed improved hybrids in four countries and in one country none of the introductions performed better than the local cultivars. Introduced genotypes were successfully crossed (controlled crossing) with local cultivars and new hybrids were produced. For the first time in the history of Aroids research, seeds were exchanged internationally injecting tremendous allelic diversity in different countries. If climatic changes are going to cause the problems envisaged, then breeding crops with wide genetic diversity appears to be an appropriate approach to overcome the disasters that will otherwise ensue.pt_PT
dc.description.sponsorshipThis research was financially supported by the Europe-Aid project ‘‘Adapting clonally propagated crops to climatic and commercial changes’’ (Grant No. DCI-FOOD/ 2010/230-267 SPC). Thanks are due to the 14 different countries technicians working on research stations and to farmers and their families for their enthusiastic contributionpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLebot, V., Tuia, V., Ivancic, A., Jackson, G. V. H., Saborio, F., Reyes, G., ... & Iosefa, T. (2018). Adapting clonally propagated crops to climatic changes: a global approach for taro (Colocasia esculenta (L.) Schott). Genetic resources and crop evolution, 65(2), 591-606. https://doi.org/10.1007/s10722-017-0557-6pt_PT
dc.identifier.doi10.1007/s10722-017-0557-6pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3170
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAllelic diversitypt_PT
dc.subjectColocasia esculentapt_PT
dc.subjectCrossingpt_PT
dc.subjectIn vitro distributionpt_PT
dc.subjectOn-farm evaluationpt_PT
dc.subjectSelectionpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleAdapting clonally propagated crops to climatic changes: a global approach for taro (Colocasia esculenta (L.) Schott)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage606pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage591pt_PT
oaire.citation.titleGenetic Resources and Crop Evolutionpt_PT
oaire.citation.volume65pt_PT
person.familyNameLebot
person.familyNameAlmeida Pinheiro de Carvalho
person.givenNameVincent
person.givenNameMiguel Angelo
person.identifier1218558
person.identifier.ciencia-id4610-6741-6816
person.identifier.orcid0000-0001-5699-0566
person.identifier.orcid0000-0002-5084-870X
person.identifier.ridAEE-0913-2022
person.identifier.scopus-author-id8758577600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationfb4ed625-1ff5-4b50-a3da-f6055683da46
relation.isAuthorOfPublication2e433c48-88f8-40a2-b21f-de78b44aab1c
relation.isAuthorOfPublication.latestForDiscovery2e433c48-88f8-40a2-b21f-de78b44aab1c

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