, Volume 121, Issue 1, pp 65–74 | Cite as

Genetic (RAPD) Diversity between Oleria onega agarista and Oleria onega ssp. (Ithomiinae, Nymphalidae, Lepidoptera) in North-Eastern Peru

  • S. Gallusser
  • R. GuadagnuoloEmail author
  • M. Rahier


Oleria onega agarista Felder and Felder and Oleria onega ssp. nov. are two Ithomiinae subspecies from north-eastern Peru, that differ for some morphological and behavioural traits. Two contact zones are known near the town of Tarapoto: Ahuashiyacu, where both subspecies cohabit but do not seem to hybridise, and Estero (near the village of Shapaja), where they apparently hybridise. Genetic differences between the two subspecies and between populations were investigated with random amplified polymorphic DNA (RAPD) markers. Both Cluster and Principal Coordinates Analyses (CCoA and PCoA) performed using these data, provided a clear but weak discrimination between the two subspecies. Genetic diversity is much higher within the populations than between them. Moreover, the geographically more distant populations are grouped together by the genetic data. Morphological traits on the wing patterns of the hybrids are intermediary between the two butterflies subspecies, while RAPDs data place them closer to O. onega agarista than to O. onega ssp. The individuals of the Ahuashiyacu population are clearly separated into two groups, those of O. onega ssp. and O. onega agarista, by both morphology and RAPDs data. Moreover, none of those individuals show RAPD similarity with the hybrids, suggesting that hybridisation has not occurred in this population.

genetic variation hybridisation Ithomiinae Oleria 


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© Kluwer Academic Publishers 2004

Authors and Affiliations

  1. 1.Laboratoire d’Ecologie Animale et EntomologieUniversité de NeuchâtelNeuchâtelSwitzerland
  2. 2.Laboratoire de Botanique EvolutiveUniversité de NeuchâtelNeuchâtelSwitzerland

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