Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group)

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cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationInternational Institute of Tropical Agricultureen_US
cg.contributor.affiliationSwedish University of Agricultural Sciencesen_US
cg.contributor.affiliationCentre of the Region Haná for Biotechnological and Agricultural Researchen_US
cg.contributor.affiliationKatholieke Universiteit Leuvenen_US
cg.contributor.affiliationBioversity Internationalen_US
cg.contributor.affiliationKansas State Universityen_US
cg.contributor.affiliationBill & Melinda Gates Foundationen_US
cg.contributor.crpRoots, Tubers and Bananasen_US
cg.creator.identifierRony Swennen: 0000-0002-5258-9043en_US
cg.creator.identifierBrigitte Uwimana: 0000-0001-7460-9001en_US
cg.identifier.doihttps://doi.org/10.1007/s00122-019-03425-xen_US
cg.isijournalISI Journalen_US
cg.issn1432-2242en_US
cg.issue12en_US
cg.journalTheoretical and Applied Geneticsen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.bioversityAGRONOMIC CHARACTERSen_US
cg.subject.bioversityQUANTITATIVE TRAIT LOCIen_US
cg.subject.bioversitySINGLE NUCLEOTIDE POLYMORPHISMen_US
cg.volume132en_US
dc.contributor.authorNyine, M.en_US
dc.contributor.authorUwimana, Brigitteen_US
dc.contributor.authorAkech, V.en_US
dc.contributor.authorBrown, A.en_US
dc.contributor.authorOrtíz, R.en_US
dc.contributor.authorDoležel, Jaroslaven_US
dc.contributor.authorLorenzen, J.en_US
dc.contributor.authorSwennen, Rony L.en_US
dc.date.accessioned2019-09-24T07:58:31Zen_US
dc.date.available2019-09-24T07:58:31Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/103733en_US
dc.titleAssociation genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group)en_US
dcterms.abstractBunch weight increase is one of the major objectives of banana improvement programs, but little is known about the loci controlling bunch weight and its component traits. Here we report for the first time some genomic loci associated with bunch weight and its component traits in banana as revealed through a genome-wide association study. A banana-breeding population of 307 genotypes varying in ploidy was phenotyped in three locations under different environmental conditions, and data were collected on bunch weight, number of hands and fruits; fruit length and circumference; and diameter of both fruit and pulp for three crop cycles. The population was genotyped with genotyping by sequencing and 27,178 single nucleotide polymorphisms (SNPs) were generated. The association between SNPs and the best linear unbiased predictors of traits was performed with TASSEL v5 using a mixed linear model accounting for population structure and kinship. Using Bonferroni correction, false discovery rate, and long-range linkage disequilibrium (LD), 25 genomic loci were identified with significant SNPs and most were localized on chromosome 3. Most SNPs were located in genes encoding uncharacterized and hypothetical proteins, but some mapped to transcription factors and genes involved in cell cycle regulation. Inter-chromosomal LD of SNPs was present in the population, but none of the SNPs were significantly associated with the traits. The clustering of significant SNPs on chromosome 3 supported our hypothesis that fruit filling in this population was under control of a few quantitative trait loci with major effects.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2019-09-16en_US
dcterms.bibliographicCitationNyine, M.; Uwimana, B.; Akech, V.; Brown, A.; Ortiz, R.; Doležel, J.; Lorenzen, J.; Swennen, R. (2019) Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group). Theoretical and Applied Genetics 132, p. 3295–3308. ISSN: 1432-2242en_US
dcterms.extentp. 3295-3308en_US
dcterms.issued2019-09-16en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherSpringeren_US
dcterms.subjectmusaen_US
dcterms.subjectgenotypesen_US
dcterms.subjectphenotypesen_US
dcterms.subjectquantitative trait locien_US
dcterms.subjectsingle nucleotide polymorphismen_US
dcterms.subjectagronomic charactersen_US
dcterms.typeJournal Articleen_US

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