| Attributes | Values |
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| rdf:type
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| label
| - Boucher <i>et al.</i> (2015)
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| isDefinedBy
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| schema:datePublished
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| dct:title
| - Boucher <i>et al.</i> (2015)
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| foaf:page
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| schema:identifier
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| dct:abstract
| - Only females were observed in Spasalus crenatus (Mac Leay 1819) in the Antilles, fromPuerto Rico to Saint-Vincent, whereas both sexes are in Trinidad and on the continent. Nodifference in endo- and ectodermic female genitalia could be noticed between the twopopulations. Chromosomes of specimens from Guadeloupe reveal a 26,XX karyotype, as infemales of various sexual species of Passalini, which demonstrates its diploidy. Breedingswere developed with isolated immature stages. After nine years, descendants from a singlefemale are demonstrating their parthenogenetic reproduction. This is the first recordedparthenogenesis in Passalidae and a rare telytoky in diploid insects. Relationships betweenparthenogenesis, diploidy and insularity are discussed in the scheme of geographicalparthenogenesis. No discriminant morphological character on adults could be foundbetween the two populations, except the total length. The modes of reproductiondistinguishing the two geographically separated populations suggest the presence of twotaxa: S. crenatus on the continent and Trinidad; the parthenote S. puncticollis (Le Peletier & Serville 1825), n. stat., on the Arc of the Antilles.
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| bibo:abstract
| - Only females were observed in Spasalus crenatus (Mac Leay 1819) in the Antilles, fromPuerto Rico to Saint-Vincent, whereas both sexes are in Trinidad and on the continent. Nodifference in endo- and ectodermic female genitalia could be noticed between the twopopulations. Chromosomes of specimens from Guadeloupe reveal a 26,XX karyotype, as infemales of various sexual species of Passalini, which demonstrates its diploidy. Breedingswere developed with isolated immature stages. After nine years, descendants from a singlefemale are demonstrating their parthenogenetic reproduction. This is the first recordedparthenogenesis in Passalidae and a rare telytoky in diploid insects. Relationships betweenparthenogenesis, diploidy and insularity are discussed in the scheme of geographicalparthenogenesis. No discriminant morphological character on adults could be foundbetween the two populations, except the total length. The modes of reproductiondistinguishing the two geographically separated populations suggest the presence of twotaxa: S. crenatus on the continent and Trinidad; the parthenote S. puncticollis (Le Peletier & Serville 1825), n. stat., on the Arc of the Antilles.
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| dct:issued
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| dct:bibliographicCitation
| - Boucher, S., Dutrillaux, A.-M., Dutrillaux, B. 2015. Parthenogenetic reproduction demonstrated in the diploid <em>Spasalus puncticollis </em>(Le Peletier & Serville 1825), n. stat., from the Antilles (Coleoptera, Scarabaeoidea, Passalidae). <em>Comptes Rendus Biologies</em>, 338: 738-744.
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| bibo:doi
| - 10.1016/j.crvi.2015.09.001
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| schema:sameAs
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| is stated in (Wikidata)
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