THE GENETICS OF THE “BIOTYPES” OF THE RICE BROWN PLANTHOPPER, NILAPARVATA LUGENS
- 1 January 1981
- journal article
- Published by Wiley in Entomologia Experimentalis et Applicata
- Vol. 29 (1) , 76-86
- https://doi.org/10.1111/j.1570-7458.1981.tb03044.x
Abstract
As the resistance of rice varieties to the brown planthopper is based on major genes it has been widely assumed that there is a gene for gene correspondence between resistance on the part of the plant and virulence on the part of the hopper. However, the mode of inheritance and response of the biotypes to selection. together with the previously reported wide variation within each “biotype” and large overlap between them in virulence, is all consistent with polygenic determination of virulence.RÉSUMÉ: LA GÉNÉTIQUE DES “BIOTYPES” DE NILAPARVATA LUGENSComme la resistance des variétés de riz à N. lugens est due à des gènes majeurs, on considere généralement qu'il y a une correspondance gène à gène entre la résistance de la plante et la virulence de l'insête. Cependant, le type d'héritabilité et la réponse des biotypes à la sélection, ainsi que la grande variabilité antérieurement signalée dans chaque biotype et l'important chevauchement de leur virulence, sont tous conformes à une détermination polygénique de la virulence.Keywords
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