Niger-wide assessment of in situ sorghum genetic diversity with microsatellite markers

  • Deu, Monique
  • Sagnard, Fabrice
  • Chantereau, Jacques
  • Calatayud, Caroline
  • Herault, Damien
  • Mariac, Cédric
  • Pham, Jean Louis
  • Vigouroux, Yves
  • Kapran, Issoufou
  • Traoré, P.S.
  • Mamadou, Aïssata
  • Gérard, Bruno
  • Ndjeunga, Jupiter
  • Bezançon, Gilles
Publication date
January 2008
Publisher
Springer Science and Business Media LLC

Abstract

Understanding the geographical, environmental and social patterns of genetic diversity on different spatial scales is key to the sustainable in situ management of genetic resources. However, few surveys have been conducted on crop genetic diversity using exhaustive in situ germplasm collections on a country scale and such data are missing for sorghum in sub-Saharan Africa, its centre of origin. We report here a genetic analysis of 484 sorghum varieties collected in 79 villages evenly distributed across Niger, using 28 microsatellite markers. We found a high level of SSR diversity in Niger. Diversity varied between eastern and western Niger, and allelic richness was lower in the eastern part of the country. Genetic differentiation between bo...

Extracted data

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