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Genetic Diversity of the African hexaploid Species Solanum scabrum Mill. and Solanum nigrum L. (Solanaceae)

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dc.creator Manoko, Mkabwa L. K.
dc.creator van den Berg, Ronald G.
dc.creator Feron, Richard M. C.
dc.creator van der Weerden, Gerard M.
dc.creator Mariani, Celestina
dc.date 2016-05-05T14:06:36Z
dc.date 2016-05-05T14:06:36Z
dc.date 2008
dc.date.accessioned 2018-03-27T09:00:09Z
dc.date.available 2018-03-27T09:00:09Z
dc.identifier Manoko, M.L., van den Berg, R.G., Feron, R.M., van der Weerden, G.M. and Mariani, C., 2008. Genetic diversity of the African hexaploid species Solanum scabrum Mill. and Solanum nigrum L.(Solanaceae). Genetic Resources and Crop Evolution, 55(3), pp.409-418.
dc.identifier http://hdl.handle.net/20.500.11810/1826
dc.identifier 10.1007/s10722-007-9248-z
dc.identifier.uri http://hdl.handle.net/20.500.11810/1826
dc.description Two hexaploid species of Solanum sect. Solanum are present in Africa: Solanum scabrum and S. nigrum. Solanum scabrum is a widely cultivated species and is used as a leafy vegetable, as a source of medicine and as a source of ink dye. In previous studies a wide range of morphological diversity has been reported in this species and in some studies subspecies have been proposed. Subspecies are also recognized in S. nigrum. However, it has not been established whether or not the morphological differences are reflected at the genomic level. The present study applies AFLPs to study the genetic diversity in S. scabrum and its relationship to geographical provenance, morphological differences and the possible existence of subspecies within S. scabrum and S. nigrum. The data obtained were analyzed with cluster analysis (using UPGMA and NJ). The results indicate that the genetic variation within S. scabrum was higher within accessions than between accessions. Accessions did not cluster according to their geographical provenance, indicating that accessions from different geographical areas were not significantly different genetically. The clustering reflected neither morphological differences nor domestication status (cultivated or wild). The morphological differences exhibited by S. scabrum could be due to selection by farmers for different plant types. The AFLP derived clustering pattern did not segregate the subspecies recognized in S. scabrum and S. nigrum into separate subclusters.
dc.language en
dc.subject AFLP
dc.subject Africa
dc.subject Conservation
dc.subject Genetic diversity
dc.subject Human selection
dc.subject S. scabrum
dc.subject Solanum nigrum
dc.subject Subspecies
dc.title Genetic Diversity of the African hexaploid Species Solanum scabrum Mill. and Solanum nigrum L. (Solanaceae)
dc.type Journal Article, Peer Reviewed


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