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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Use of molecular markers in participatory plant breeding: Assessing the genetic variability in cotton populations bred by farmers
Annals of Applied Biology, Volume 152, No. 1, Year 2008
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Description
In participatory plant breeding, farmers are involved in simple selection schemes that are not suitable for assessing genetic variability in the segregating populations. We propose to use information derived from molecular marker analyses to help monitoring such populations. In this study, we used three indicators to compare genetic variability in eight genetic structures, that is three plant populations selected by farmers over five generations, three nonselected populations and two commercial varieties. The three indicators were the polymorphic locus rate, heterozygosity rate and dissimilarity index. The results highlighted that the genetic variability decreased more with farmers' selection than with environmental factors. The breeding process was not complete because genetic variability in the selected populations was midway between that of the nonselected populations and that of the commercial varieties monitored. The three proposed indicators were relevant for describing the studied populations. They could be interpreted according to a grid drawn up on the basis of the results of the present study. © 2007 Association of Applied Biologists.
Authors & Co-Authors
Lançon, Jacques
France, Paris
Cirad
Benin, Save
Inrab
Pichaut, J. P.
France, Paris
Cirad
Djaboutou, M.
Benin, Save
Inrab
Lewicki-Dhainaut, Sylvie
France, Paris
Cirad
Benin, Save
Inrab
Viot, Christopher
France, Paris
Cirad
Lacape, J. M.
France, Paris
Cirad
France, Montpellier
Centre Coopération Internationale en Recherche Agronomique Pour le Développement
Statistics
Citations: 7
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1111/j.1744-7348.2007.00197.x
ISSN:
00034746
e-ISSN:
17447348
Research Areas
Genetics And Genomics