ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2010
Spatio-temporal dynamics of genetic diversity in Sorghum bicolor in Niger.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Article
- Genetic diversity, population structure, and selection signature in Ethiopian sorghum [Sorghum bicolor L. (Moench)] germplasm.G3 (Bethesda, Md.) · 2021Article
- Genetic diversity and selection signatures in maize landraces compared across 50 years of in situ and ex situ conservation.Heredity · 2021Article
- Genomic analyses reveal selection footprints in rice landraces grown under on-farm conservation conditions during a short-term period of domestication.Evolutionary applications · 2020Article
- Abandonment of pearl millet cropping and homogenization of its diversity over a 40 year period in Senegal.PloS one · 2020Article
- Status and factors influencing on-farm conservation of Kam Sweet Rice (Oryza sativa L.) genetic resources in southeast Guizhou Province, China.Journal of ethnobiology and ethnomedicine · 2018Article
- Influence of ethnic traditional cultures on genetic diversity of rice landraces under on-farm conservation in southwest China.Journal of ethnobiology and ethnomedicine · 2016Article
- Diachronic analysis of genetic diversity in rice landraces under on-farm conservation in Yunnan, China.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 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
- 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 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
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12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dynamics of crop genetic diversity need to be assessed to draw up monitoring and conservation priorities. However, few surveys have been conducted in centres of diversity. Sub-Saharan Africa is the centre of origin of sorghum. Most Sahel countries have been faced with major human, environmental and social changes in recent decades, which are suspected to cause genetic erosion. Sorghum is the second staple cereal in Niger, a centre of diversity for this crop. Niger was submitted to recurrent drought period and to major social changes during these last decades. We report here on a spatio-temporal analysis of sorghum genetic diversity, conducted in 71 villages covering the rainfall gradient and range of agro-ecological conditions in Niger's agricultural areas. We used 28 microsatellite markers and applied spatial and genetic clustering methods to investigate change in genetic diversity over a 26-year period (1976-2003). Global genetic differentiation between the two collections was very low (F (st) = 0.0025). Most of the spatial clusters presented no major differentiation, as measured by F (st), and showed stability or an increase in allelic richness, except for two of them located in eastern Niger. The genetic clusters identified by Bayesian analysis did not show a major change between the two collections in the distribution of accessions between them or in their spatial location. These results suggest that farmers' management has globally preserved sorghum genetic diversity in Niger.
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