title: Construction of a genetic linkage map and QTL analysis in bambara groundnut.
abstract: Bambara groundnut (Vigna subterranea (L.) Verdc.) is an indigenous underutilized legume that has the potential to improve food security in semi-arid Africa. So far, there are a lack of reports of controlled breeding populations that could be used for variety development and genetic studies. We report here the construction of the first genetic linkage map of bambara groundnut using a F3 population derived from a "narrow" cross between two domesticated landraces (Tiga Nicuru and DipC) with marked divergence in phenotypic traits. The map consists of 238 DArT array and SSR based markers in 21 linkage groups with a total genetic distance of 608.3 cM. In addition, phenotypic traits were evaluated for a quantitative trait loci (QTL) analysis over two generations. A total of 36 significant QTLs were detected for 19 traits. The phenotypic effect explained by a single QTL ranged from 11.6% to 49.9%. Two stable QTLs were mapped for internode length and growth habit. The identified QTLs could be useful for marker-assisted selection in bambara groundnut breeding programmes.
authors.affiliation: a Crop Science Department, Faculty of Agricultural Sciences, Sulaimani University, Kurdistan, Iraq.
authors.forename: Nariman Salih
authors.initials: NS
authors.lastname: Ahmad
authors.affiliation: b Faculty of Agriculture, Muhammadiyah University, Gresik, Indonesia.
authors.forename: Endah Sri
authors.initials: ES
authors.lastname: Redjeki
authors.affiliation: c University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.|d Crops For the Future, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.
authors.forename: Wai Kuan
authors.initials: WK
authors.lastname: Ho
authors.affiliation: c University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.|d Crops For the Future, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.|e CSIR-Savannah Agricultural Research Institute, Nyankpala N/R, Ghana.
authors.forename: Siise
authors.initials: S
authors.lastname: Aliyu
authors.affiliation: f University of Nottingham, Plant and Crop Sciences Division, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, UK.
authors.forename: Katie
authors.initials: K
authors.lastname: Mayes
authors.affiliation: c University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.
authors.forename: Festo
authors.initials: F
authors.lastname: Massawe
authors.affiliation: g Diversity Array Technology Pty Ltd., Building 3, Level D, University of Canberra, Kirinari St. Bruce, ACT2617, Australia.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kilian
authors.affiliation: d Crops For the Future, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.|f University of Nottingham, Plant and Crop Sciences Division, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, UK.
authors.forename: Sean
authors.initials: S
authors.lastname: Mayes
mesh_terms: D001947:Breeding; D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D016000:Cluster Analysis; D003433:Crosses, Genetic; D007887:Fabaceae / Q000235:genetics* / Q000254:growth & development; D008040:Genetic Linkage; D005819:Genetic Markers; D014644:Genetic Variation; D005838:Genotype; D010641:Phenotype; D011110:Polymorphism, Genetic; D040641:Quantitative Trait Loci; D013045:Species Specificity
chemical_list: D005819:Genetic Markers
keywords: QTL analysis; analyse QTL; bambara groundnut; breeding; cartographie génétique; genetic mapping; pois bambara; sélection