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Morfología del huevo ovárico en calcidoideos (Hymenoptera: Chalcidoidea) parasitoides de avispas de las agallas (Hymenoptera: Cynipidae)

Authors: Vårdal, H.; Gómez, J. F.; Nieves-Aldrey, J. L.;

Morfología del huevo ovárico en calcidoideos (Hymenoptera: Chalcidoidea) parasitoides de avispas de las agallas (Hymenoptera: Cynipidae)

Abstract

En el presente trabajo se aportan datos morfol.gicos del huevo de 26 especies del Paleártico occidental pertenecientes a 5 familias de Chalcidoidea asociadas con agallas de cinípidos (Hymenoptera: Cynipidae), incluyendo los primeros datos del huevo de especies de Ormyridae. Los ejemplares adultos de las especies estudiadas fueron obtenidos por emergencia de agallas en laboratorio, los ovarios de las hembras diseccionados para obtener los huevos, que fueron finalmente estudiados utilizando técnicas de microscopía electronica de barrido. La forma de los huevos estudiados varía de ovalada a alargada y ahusada en ambos extremos. Los huevos de Eurytomidae, así como algunos de Eulophidae, Eupelmidae y Pteromalidae están provistos de un pedúnculo en el extremo anterior. Se encontró una correlación positiva entre aquellos huevos elongados y la presencia de ovipositores largos en las hembras, confirmándose también la hipótesis esperada de que los huevos de especies endoparasitoides son generalmente más cortos y estrechos que los de los ectoparasitoides. Por otro lado los estudios de ultraestructura en los huevos de varias especies han permitido la localización del punto de entrada de esperma o micropilo. Este se encuentra situado bien en el extremo anterior del huevo o bien en el extremo del pedúnculo cuando está presente. Además, por primera vez se estudia y se describe la ultraestructura de la cáscara del huevo de la especie endoparasitoide Sycophila biguttata (Swederus, 1795) (Hymenoptera: Eurytomidae) y del ectoparasitoide Cecidostiba fungosa (Geoffroy, 1785) (Hymenoptera: Pteromalidae).

Keywords

modo de parasitismo, micropilo, chalcidoid egg ultrastructure, mode of parasitism, eggshell, Artículos, micropyle, immature stages, ultraestructura del huevo de chalcidoidea, QL1-991, estados inmaduros, cáscara de huevo, Zoology

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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