Abstract
RAPD markers were used to analyse the genetic variability among a cole crop cultivar collection from France and to identify possible duplicate accessions for facilitating the germplasm multiplication. We surveyed 24 cauliflower, 24 cabbage and 48 kale populations using 62, 100 and 89 RAPD markers respectively on 40 seed bulk samples per accession. Genetic distances were calculated on the basis of these markers. Using the phylogenetic package PAUP we compared the genetic clusters obtained for the RAPD markers with the groups based on morphologic and agronomic data. For cauliflowers and cabbages a drastic selection by growers led to an extensive differentiation of morphologic and precocity traits related to geographic origin, which matches the grouping based on RAPD markers. Furthermore, RAPDs detected in some cases misclassification of accessions in the collection. Kales formed an homogeneous group probably due to extensive genetic exchanges leading to a continuous diversity. For the other crops, different horticultural types were separated in several subgroups by the RAPD markers suggesting different genetic origins. RAPD markers provide a rapid and informative approach to analyze the genetic variability in a collection. It can be applied to autogamous (spring cauliflower) or allogamous (winter cauliflower) crops, even in cases where the intra-population diversity is extensive (cabbages).
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Margalé, E., Hervé, Y., Hue, J. et al. Determination of genetic variability by RAPD markers in cauliflower, cabbage and kale local cultivars from France. Genet Resour Crop Evol 42, 281–289 (1995). https://doi.org/10.1007/BF02431263
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DOI: https://doi.org/10.1007/BF02431263