Genetic Diversity of a Parasitic Weed, Striga hermonthica, on Sorghum and Pearl Millet in Mali

Estep, M C and Mourik, T A Van and Muth, P and Guindo, D and Parzies, H K and Koita, O A and Weltzien, E and Bennetzen, J L (2011) Genetic Diversity of a Parasitic Weed, Striga hermonthica, on Sorghum and Pearl Millet in Mali. Tropical Plant Biology, 4. pp. 91-98.

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Abstract

Eleven populations of witchweed, Striga hermonthica, were collected in four regions of Mali and investigated with 12 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.

Item Type: Article
Divisions: UNSPECIFIED
CRPS: UNSPECIFIED
Uncontrolled Keywords: Microsatellite markers . Striga hermonthica . Sub-Saharan Africa . Subsistence agriculture .Witchweed
Subjects: Mandate crops > Millets
Mandate crops > Sorghum
Depositing User: Siva Shankar
Date Deposited: 16 Feb 2012 08:09
Last Modified: 14 Sep 2013 09:02
URI: http://oar.icrisat.org/id/eprint/5508
Official URL: http://dx.doi.org/10.1007/s12042-011-9073-6
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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