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Unravelling the hidden inter and intra-varietal diversity of durum wheat commercial varieties used in Portugal

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dc.contributor.authorBento, Miguel
dc.contributor.authorPereira, Sónia Gomes
dc.contributor.authorViegas, Wanda
dc.contributor.authorSilva, Manuela
dc.date.accessioned2019-05-16T09:06:05Z
dc.date.available2019-05-16T09:06:05Z
dc.date.issued2019
dc.descriptionShort Communicationpt_PT
dc.description.abstractAssessing durum wheat genomic diversity is crucial in a changing environmental particularly in the Mediterranean region where it is largely used to produce pasta. Durum wheat varieties cultivated in Portugal and previously assessed regarding thermotolerance ability were screened for the variability of coding sequences associated with technological traits and repetitive sequences. As expected, reduced variability was observed regarding low molecular weight glutenin subunits (LMW-GS) but a specific LMW-GS allelic form associated with improved pasta-making characteristics was absent in one variety. Contrastingly, molecular markers targeting repetitive elements like microsatellites and retrotransposons – Inter Simple Sequence Repeat (ISSR) and Inter Retrotransposons Amplified Polymorphism (IRAP) – disclosed significant inter and intra-varietal diversity. This high level of polymorphism was revealed by the 20 distinct ISSR/IRAP concatenated profiles observed among the 23 individuals analysed. Interestingly, median joining networks and PCoA analysis grouped individuals of the same variety and clustered varieties accordingly with geographical origin. Globally, this work demonstrates that durum wheat breeding strategies induced selection pressure for some relevant coding sequences while maintaining high levels of genomic variability in non-coding regions enriched in repetitive sequencespt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPlant Genetic Resources: Characterization and Utilization; 1–4pt_PT
dc.identifier.doi10.1017/S1479262119000133pt_PT
dc.identifier.issn1479-2621
dc.identifier.urihttp://hdl.handle.net/10400.5/17844
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNIABpt_PT
dc.subjectgenetic diversitypt_PT
dc.subjectgluteninspt_PT
dc.subjectmicrosatellitespt_PT
dc.subjectretrotransposonspt_PT
dc.titleUnravelling the hidden inter and intra-varietal diversity of durum wheat commercial varieties used in Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titlePlant Genetic Resources: characterization and utilizationpt_PT
person.familyNameViegas
person.givenNameWanda
person.identifier.ciencia-id2A11-692D-B451
person.identifier.orcid0000-0003-4660-1226
person.identifier.scopus-author-id6603353235
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication92899abd-cec8-4145-8907-8cd9d78fc3c4
relation.isAuthorOfPublication.latestForDiscovery92899abd-cec8-4145-8907-8cd9d78fc3c4

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