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    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Ce travail montre que l'isolement reproductif entre Tetranychus uriticae Koch et Tetranychus cinnabarinus (Boisduval), est loin d'être complet. L'auteur a obtenu des souches hybrides présentant les caractéristiques morphologiques de T. cinnabarinus, mais homozygotes pour un gêne marqueur provenant de T. urticae. De plus, une diminution de la photopériode entraîne l'entrée en diapause des espèces provenant de régions à climat froid (T. urticae), mais aussi d'une population de T. cinnabarinus. Il est finalemant proposé de considérer Tetranychus cinnabarinus (Boisduval) Boudreaux, 1956, comme un synonyme de Tetranychus urticae Koch, 1836.
    Notes: Abstract It was found that the reproductive separation between the two-spotted spider mite (Tetranychus urticae Koch) and the carmine spider mite (Tetranychus cinnabarinus (Boisduval) is far from complete. Hybrid strains were established which possessed the morphological characteristics of T. cinnabarinus, but which were homozygous for a marker gene originating from T. urtica. In addition, short-day treatment leads to diapause not only in the species from cold climates (T. urticae), but also in a population of T. cinnabarinus. It is questioned whether T. cinnabarinus deserves ranking at species level.
    Type of Medium: Electronic Resource
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