Show simple item record

Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers

dc.contributor.authorMengesha, W.
dc.contributor.authorMenkir, A.
dc.contributor.authorUnachukwu, N.N.
dc.contributor.authorMeseka, S.K.
dc.contributor.authorFarinola, A.
dc.contributor.authorGirma Tessema, G.
dc.contributor.authorGedil, M.
dc.date.accessioned2019-12-04T11:08:50Z
dc.date.available2019-12-04T11:08:50Z
dc.date.issued2017-06-13
dc.identifier.citationMengesha, W., Menkir, A., Unachukwu, N., Meseka, S.K., Farinola, A., Girma Tessema, G. & Gedil, M. (2017). Genetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers. Plant Breeding, 136(3), 338-343.
dc.identifier.issn0179-9541
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1921
dc.description.abstractStriga hermonthica and drought are the major stresses limiting maize yields in sub-Saharan Africa. The search for diverse maize lines’ tolerance to drought and resistance to S. hermonthica (DTSTHR) is very crucial for yield improvement in areas affected by the two stresses. Understanding the genetic diversity among the lines is important to develop cultivars resistant to S. hermonthica and tolerant to drought. The lines were developed from biparental crosses of drought-tolerant and Striga-resistant lines. A total of 128 DTSTHR maize lines were characterized using single-nucleotide polymorphism (SNP) markers. Results of the cluster analysis based on 3297 SNP markers showed four distinct groups consistent with the pedigrees of the lines. Furthermore, model-based analysis also formed the same groups of the DTSTHR lines. Integrating the pedigree information with combining ability and the SNP analyses may provide defined heterotic groups for maize improvement work in West and Central Africa. These results also help breeders to utilize DTSTHR lines present at IITA for developing biparental crosses without disrupting the heterotic groups they have established in their breeding programmes.
dc.format.extent338-343
dc.language.isoen
dc.subjectStriga Hermonthica
dc.subjectGenetic Variation
dc.subjectInbred Lines
dc.subjectSnp Markers
dc.subjectDrought Tolerance
dc.subjectMaize
dc.subjectBreeding
dc.subjectDna
dc.subjectGenotyping
dc.titleGenetic diversity of tropical maize inbred lines combining resistance to Striga hermonthica with drought tolerance using SNP markers
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.researchthemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.authorship.typesCGIAR single centre
cg.iitasubjectGenetic Improvement
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.journalPlant Breeding
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid85052
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/pbr.12479


Files in this item

Thumbnail
Name:
S17ArtMengeshaGeneticInthomNod ...
Size:
625.2Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record