ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2007
Local genetic diversity of sorghum in a village in northern Cameroon: structure and dynamics of landraces.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Article
- Ethnobotanical study of cowpea (Vigna unguiculata (L.) Walp.) in Senegal.Journal of ethnobiology and ethnomedicine · 2022Article
- Genetic diversity, population structure, and selection signature in Ethiopian sorghum [Sorghum bicolor L. (Moench)] germplasm.G3 (Bethesda, Md.) · 2021Article
- Genetic diversity of Ethiopian sorghum reveals signatures of climatic adaptation.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Genetic Diversity and Population Structure of Sorghum [Frontiers in plant science · 2021Article
- In situ conservation-harnessing natural and human-derived evolutionary forces to ensure future crop adaptation.Evolutionary applications · 2017Review
- Past and present dynamics of sorghum and pearl millet diversity in Mount Kenya region.Evolutionary applications · 2016Article
- Varietal Dynamics and Yam Agro-Diversity Demonstrate Complex Trajectories Intersecting Farmers' Strategies, Networks, and Disease Experience.Frontiers in plant science · 2016Article
- Ethnolinguistic structuring of sorghum genetic diversity in Africa and the role of local seed systems.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Analysis of in situ diversity and population structure in Ethiopian cultivated Sorghum bicolor (L.) landraces using phenotypic traits and SSR markers.SpringerPlus · 2014Article
- Influence of ethnolinguistic diversity on the sorghum genetic patterns in subsistence farming systems in eastern Kenya.PloS one · 2014Article
- Population genetic structure in a social landscape: barley in a traditional Ethiopian agricultural system.Evolutionary applications · 2013Article
- Assessment of genetic diversity in the sorghum reference set using EST-SSR markers.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2013Article
- Massive sorghum collection genotyped with SSR markers to enhance use of global genetic resources.PloS one · 2013Article
- Genetic structure, linkage disequilibrium and signature of selection in Sorghum: lessons from physically anchored DArT markers.PloS one · 2012Article
- Genetic diversity, structure, gene flow and evolutionary relationships within the Sorghum bicolor wild-weedy-crop complex in a western African region.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
- Genetic structure and diversity of wild sorghum populations (Sorghum spp.) from different eco-geographical regions of Kenya.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
- Genetic structure and relationships within and between cultivated and wild sorghum (Sorghum bicolor (L.) Moench) in Kenya as revealed by microsatellite markers.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
- Evolutionary response of landraces to climate change in centers of crop diversity.Evolutionary applications · 2010Article
- Genetic structure among sorghum landraces as revealed by morphological variation and microsatellite markers in three agroclimatic regions of Burkina Faso.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2010Article
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5 authors.
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Abstract
We present the first study of patterns of genetic diversity of sorghum landraces at the local scale. Understanding landrace diversity aids in deciphering evolutionary forces under domestication, and has applications in the conservation of genetic resources and their use in breeding programs. Duupa farmers in a village in Northern Cameroon distinguished 59 named sorghum taxa, representing 46 landraces. In each field, seeds are sown as a mixture of landraces (mean of 12 landraces per field), giving the potential for extensive gene flow. What level of genetic diversity underlies the great morphological diversity observed among landraces? Given the potential for gene flow, how well defined genetically is each landrace? To answer these questions, we recorded spatial patterns of planting and farmers' perceptions of landraces, and characterized 21 landraces using SSR markers. Analysis using distance and clustering methods grouped the 21 landraces studied into four clusters. These clusters correspond to functionally and ecologically distinct groups of landraces. Within-landrace genetic variation accounted for 30% of total variation. The average F(is) over landraces was 0.68, suggesting high inbreeding within landraces. Differentiation among landraces was substantial and significant (F(st) = 0.36). Historical factors, variation in breeding systems, and farmers' practices all affected patterns of genetic variation. Farmers' practices are key to the maintenance, despite gene flow, of landraces with different combinations of agronomically and ecologically pertinent traits. They must be taken into account in strategies of conservation and use of genetic resources.
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