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dc.contributor.authorAjala, S.O.
dc.contributor.authorOlayiwola, M.O.
dc.contributor.authorJob, A.O.
dc.contributor.authorOlaniyan, A.B.
dc.contributor.authorGedil, M.
dc.date.accessioned2022-09-14T11:47:59Z
dc.date.available2022-09-14T11:47:59Z
dc.date.issued2020-12
dc.identifier.citationAjala, S.O., Olayiwola, M.O., Job, A.O., Olaniyan, A.B. & Gedil, M. (2020). Assessment of heterotic patterns of tropical low‐nitrogen–tolerant maize (Zea mays L.) inbred lines using testcross performance, morphological traits and SNP markers. Plant Breeding, 139(6), 1113-1124.
dc.identifier.issn0179-9541
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7748
dc.description.abstractBreeding efforts in West and Central Africa (WCA) have focused on the development of Low‐N‐tolerant (LNT) maize inbreds and their classification into heterotic groups. This study was conducted to classify LNT maize lines into heterotic groups using testcross performance, morphological and SNP markers and to compare the consistency of groupings by the three methods. Thirty‐six LNT inbreds were crossed to two contrasting inbred testers to generate 72 testcrosses that were evaluated under low‐N conditions in Nigeria in 2014. Also, the 36 inbreds and the two testers were evaluated for per se performance under similar conditions as the testcrosses in 2014 and genotyped in 2015 using 1,123,196 SNP markers. Based on testcross performance, 33 of the 36 LNT inbreds were grouped by the two testers. Morphological characterization from per se performance and genetic relationship by SNP markers classified the inbreds into four groups that were inconsistent with their pedigree. Correlation analysis showed non‐concurrence of the three grouping methods. However, information from these groupings would assist in reducing the number of crosses to be made and evaluated.
dc.description.sponsorshipAfrican Development Bank
dc.format.extent1113-1124
dc.language.isoen
dc.subjectHeterotis
dc.subjectHybrids
dc.subjectSoil Fertility
dc.subjectSoil Deficiencies
dc.subjectMaize
dc.subjectSoil Analysis
dc.subjectWest Africa
dc.subjectCentral Africa
dc.subjectDna
dc.subjectGenotypes
dc.titleAssessment of heterotic patterns of tropical low-nitrogen–tolerant maize (Zea mays L.) inbred lines using testcross performance, morphological traits and SNP markers
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ibadan
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidAJALA:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectSoil Fertility
cg.iitasubjectSoil Health
cg.journalPlant Breeding
cg.notesPublished online: 30 Sep 2020
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCopyrighted; all rights reserved
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/pbr.12866
cg.iitaauthor.identifierSam AJALA: 0000-0002-8955-408X
cg.iitaauthor.identifierMelaku Gedil: 0000-0002-6258-6014
cg.futureupdate.requiredNo
cg.identifier.issue6
cg.identifier.volume139


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