Additive relationships and parentoffspring regression in Musa germplasm with intergeneration genome size polymorphism

cg.authorship.typesCGIAR single centre
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorDirectorate-General for Development Cooperation and Humanitarian Aid, Belgium
cg.contributor.donorWorld Bank
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.scienta.2011.12.030
cg.isijournalISI Journal
cg.issn0304-4238
cg.journalScientia Horticulturae
cg.reviewStatusPeer Review
cg.subject.iitaBANANAS
cg.subject.iitaPLANTAIN
cg.volume136
dc.contributor.authorTenkouano, A.
dc.contributor.authorCrouch, J.H.
dc.contributor.authorOrtíz, R.
dc.date.accessioned2017-02-13T13:41:40Zen
dc.date.available2017-02-13T13:41:40Zen
dc.identifier.urihttps://hdl.handle.net/10568/79837
dc.titleAdditive relationships and parentoffspring regression in Musa germplasm with intergeneration genome size polymorphismen
dcterms.abstractParent–offspring regression has often been used for the estimation of breeding value and narrow-sense heritability in experimental populations, particularly for diploid species with regular disomic inheritance. With polysomic inheritance, estimates of heritability based on parent–offspring regression are expected to be systematically biased, particularly when intra- and inter-generation ploidy polymorphisms occur as a result of unusual megasporogenesis. Measuring the discrepancy between true and estimated heritability has important theoretical and practical implications for the genetic improvement of plantain and bananas. In this regard, formulas were developed to describe the relationships between parental and filial generations with different ploidy states and this information was used to estimate heritability for several traits of plantains and bananas. This approach may be extended to other polysomic species with similar meiotic behaviour and ploidy polymorphism.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationTenkouano, A., Crouch, J.H. & Ortiz, R. (2012). Additive relationships and parent–offspring regression in Musa germplasm with intergeneration genome size polymorphism. Scientia Horticulturae, 136, 69-74.en
dcterms.extentp. 69-74
dcterms.issued2012-03
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherElsevier
dcterms.subjectgametesen
dcterms.subjectadditive relationshipsen
dcterms.subjectheritabilityen
dcterms.subjecthybridsen
dcterms.subjectmusa breedingen
dcterms.subjectploidy polymorphismen
dcterms.subjectpolysomic inheritanceen
dcterms.typeJournal Article

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