Genetics, Vol. 150, 275-282, September 1998, Copyright © 1998

A Composite Genetic Map of the Parasitoid Wasp Trichogramma brassicae Based on RAPD Markers

Valérie Laurenta, Eric Wajnberga, Brigitte Manginb, Thomas Schiexb, Christine Gaspinb, and Flavie Vanlerberghe-Masuttia
a Laboratoire de Biologie des Invertébrés, Biologie des Populations, INRA, 06606 Antibes, France
b Laboratoire de Biométrie et Intelligence Artificielle, INRA, 31326 Castanet-Tolosan, France

Corresponding author: Flavie Vanlerberghe-Masutti, Laboratoire de Biologie des Invertébrés, Biologie des Populations, 123 boulevard F. Meilland, 06606 Antibes, France., fvl{at}antibes.inra.fr (E-mail).

Communicating editor: R. S. HAWLEY

Three linkage maps of the genome of the microhymenopteran Trichogramma brassicae were constructed from the analysis of segregation of random amplified polymorphic DNA markers in three F2 populations. These populations were composed of the haploid male progeny of several virgin F1 females, which resulted from the breeding of four parental lines that were nearly fixed for different random amplified polymorphic DNA markers and that were polymorphic for longevity and fecundity characters. As the order of markers common to the three mapping populations was found to be well conserved, a composite linkage map was constructed. Eighty-four markers were organized into five linkage groups and two pairs. The mean interval between two markers was 17.7 cM, and the map spanned 1330 cM.





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