Genetic diversity of African maize inbred lines revealed by SSR markers

dc.creatorLegesse, B.W.
dc.creatorMyburg, A.A.
dc.creatorPixley, K.V.
dc.creatorBotha, A.M.
dc.date2013-06-07T21:02:32Z
dc.date2013-06-07T21:02:32Z
dc.date2007
dc.date.accessioned2023-07-17T19:56:27Z
dc.date.available2023-07-17T19:56:27Z
dc.identifierhttp://hdl.handle.net/10883/1735
dc.identifier10.1111/j.2006.0018-0661.01921.x
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7508734
dc.descriptionKnowledge of genetic diversity (GD) and relationships among maize inbred lines is indispensable in a breeding program. Our objectives were to (1) investigate the level of genetic diversity among maize inbred lines and (2) assess their genetic structures by applying simple sequence repeat (SSR) markers. Fifty‐six highland and mid‐altitude maize inbred lines obtained from CIMMYT programs in Ethiopia and Zimbabwe were genotyped using 27 SSR loci. All of the genotypes studied could unequivocally be distinguished with the combination of the SSRs used. In total, 104 SSR alleles were identified, with a mean of 3.85 alleles per locus. The average polymorphism information content (PIC) was 0.58. GD expressed as Euclidean distance, varied from 0.28 to 0.73 with an average of 0.59. Cluster analysis using unweighted pair group method with arithmetic average (UPGMA) suggested five groups among the inbred lines. Most of the inbred lines adapted to the highlands and the mid‐altitudes were positioned in different clusters with a few discrepancies. The pattern of groupings of the inbred lines was mostly consistent with available pedigree information. The variability detected using SSR markers could potentially contribute towards effective utilization of the inbred lines for the exploitation of heterosis and formation of genetically diverse source populations in Ethiopian maize improvement programs
dc.description10-17 pages
dc.formatPDF
dc.languageEnglish
dc.publisherBioMed Central
dc.publisherhttp://onlinelibrary.wiley.com/doi/10.1111/j.2006.0018-0661.01921.x/abstract
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
dc.rightsOpen Access
dc.source1
dc.source144
dc.sourceHereditas
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectMAIZE
dc.subjectGENETIC VARIATION
dc.subjectINBRED LINES
dc.subjectMICROSATELLITES
dc.titleGenetic diversity of African maize inbred lines revealed by SSR markers
dc.typeArticle


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