Estep , Matt C , Van Mourik, Thomas A , Muth, Peter , Guindo, Diarah , Parzies, Heiko K , Koita, Ousmane , Weltzien, Eva , Bennetzen, Jeffrey .
Genetic diversity of a parasitic weed, Striga hermonthica,on sorghum and pearl millet in Mali.
Eleven populations of witchweed, Striga hermonthica, were collected in four regions of Mali and investigated with twelve microsatellite markers. Extensive genetic diversity was observed, with most plants heterozygous for most markers. Allelic diversity was broadly distributed across populations with little genetic differentiation and large amounts of gene flow. Nearby fields of pearl millet and sorghum were found to have indistinguishable witchweed populations. Some population structure was apparent, but did not correlate with the local environment or host genotype, suggesting that seed transportation or other human-driven variables act to differentiate central Malian S. hermonthica populations from southern Malian populations.
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1 - University of Georgia, Department of Genetics, Athens, GA, 30602, USA
2 - International Crops Research Institute for the Semi-Arid Tropics, Bamako, Mali
3 - University of Hohenheim, Institute of Plant Breeding, Seed Science and Population Genetics, Stuttgart, Germany
4 - Institut dí Economie Rurale (IER), Bamako, Mali
5 - University of Bamako, Laboratory of Applied Molecular Biology, Faculty of Science and Techniques, Bamako, Mali
Presentation Type: Oral Paper:Papers for Topics
Location: Portland Room/Chase Park Plaza
Date: Tuesday, July 12th, 2011
Time: 10:00 AM