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Identification of quantitative trait loci relating to flowering time, flag leaf and awn characteristics in a novel triticum dicoccum mapping population

2020Journal article Open access
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dc.contributor.authorWright, Tally I.C.
dc.contributor.authorBurnett, Angela C.
dc.contributor.authorGriffiths, Howard
dc.contributor.authorKadner, Maxime
dc.contributor.authorPowell, James S.
dc.contributor.authorOliveira, Hugo R.
dc.contributor.authorLeigh, Fiona J.
dc.date.accessioned2020-09-16T10:28:23Z
dc.date.available2020-09-16T10:28:23Z
dc.date.issued2020
dc.description.abstractTetraploid landraces of wheat harbour genetic diversity that could be introgressed into modern bread wheat with the aid of marker-assisted selection to address the genetic diversity bottleneck in the breeding genepool. A novel bi-parental Triticum turgidum ssp. dicoccum Schrank mapping population was created from a cross between two landrace accessions differing for multiple physiological traits. The population was phenotyped for traits hypothesised to be proxies for characteristics associated with improved photosynthesis or drought tolerance, including flowering time, awn length, flag leaf length and width, and stomatal and trichome density. The mapping individuals and parents were genotyped with the 35K Wheat Breeders' single nucleotide polymorphism (SNP) array. A genetic linkage map was constructed from 104 F4 individuals, consisting of 2066 SNPs with a total length of 3295 cM and an average spacing of 1.6 cM. Using the population, 10 quantitative trait loci (QTLs) for five traits were identified in two years of trials. Three consistent QTLs were identified over both trials for awn length, flowering time and flag leaf width, on chromosomes 4A, 7B and 5B, respectively. The awn length and flowering time QTLs correspond with the major loci Hd and Vrn-B3, respectively. The identified marker-trait associations could be developed for marker-assisted selection, to aid the introgression of diversity from a tetraploid source into modern wheat for potential physiological trait improvement.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/plants9070829pt_PT
dc.identifier.issn2223-7747
dc.identifier.urihttp://hdl.handle.net/10400.1/14725
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationAdipokines as Drug Targets to Combat Adverse Effects of Excess Adipose Tissue
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectWheatpt_PT
dc.subjectPhysiologypt_PT
dc.subjectGenetic diversitypt_PT
dc.subjectSNP genotypingpt_PT
dc.subjectTetraploid landracespt_PT
dc.subjectQTL mappingpt_PT
dc.subjectTritcum dicoccumpt_PT
dc.titleIdentification of quantitative trait loci relating to flowering time, flag leaf and awn characteristics in a novel triticum dicoccum mapping populationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAdipokines as Drug Targets to Combat Adverse Effects of Excess Adipose Tissue
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/201100/EU
oaire.citation.issue7pt_PT
oaire.citation.startPage829pt_PT
oaire.citation.titlePlantspt_PT
oaire.citation.volume9pt_PT
oaire.fundingStreamFP7
person.familyNameOliveira
person.givenNameHugo
person.identifier.ciencia-id4515-38C3-60F6
person.identifier.orcid0000-0002-5038-073X
person.identifier.scopus-author-id54682168900
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6a71f88f-9429-42f2-8d06-04cd6d1a4eeb
relation.isAuthorOfPublication.latestForDiscovery6a71f88f-9429-42f2-8d06-04cd6d1a4eeb
relation.isProjectOfPublication665e8e63-c75c-4db6-9489-d5cf5c096785
relation.isProjectOfPublication.latestForDiscovery665e8e63-c75c-4db6-9489-d5cf5c096785

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