Titre :
|
Hybridisation between Aphis grossulariae and Aphis schneideri (Sternorrhyncha : Aphididae): An experimental approach
|
Auteurs :
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R. Rakauskas
|
Type de document :
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article/chapitre/communication
|
Année de publication :
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1999
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Format :
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401-408
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Langues:
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= Anglais
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Mots-clés:
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Aphididae
;
Aphis grossulariae
;
Aphis schneideri
;
hybridisation
;
systematics
;
currant aphids
;
Speciation
;
Reproduction sexuee
;
Oeuf
;
Cycle biologique
;
Clone
;
Morphologie
;
Ribes
|
Résumé :
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A. schneideri and A. grossulariae clones from southern Poland produced fertile hybrid eggs under experimental conditions. Established hybrid clones expressed normal parthenogenetic reproduction but bisexual generations were not obtained, though a few sexuales developed in some cases. Morphological features of A. schneideri and host-specificity of A. grossulariae tended to dominate in the majority of hybrid clones. Independent inheritance of the studied morphological characters and host specificity can therefore be presumed. Present results do not exclude the possibility of natural hybridisation of studied aphid species. Natural crosses might cause taxonomic and currant pest management problems.
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Source :
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European Journal of Entomology - 1210-5759, vol. 96, n° 4
|