The puzzling taxonomic rank of Pijnackeria hispanica, a chimerical hybrid androgen (Insecta, Phasmida)

التفاصيل البيبلوغرافية
العنوان: The puzzling taxonomic rank of Pijnackeria hispanica, a chimerical hybrid androgen (Insecta, Phasmida)
المؤلفون: Liliana Milani, Valerio Scali, Andrea Luchetti, Elisabetta Punzi, Fabrizio Ghiselli
المساهمون: Milani L., Scali V., Punzi E., Luchetti A., Ghiselli F.
سنة النشر: 2020
مصطلحات موضوعية: 0106 biological sciences, 0301 basic medicine, Mitochondrial DNA, Nuclear gene, Androgenesi, myr, Parthenogenesis, Biology, 010603 evolutionary biology, 01 natural sciences, Reticulate evolution, 03 medical and health sciences, Pijnackeria hispanica, 030104 developmental biology, Polyploid, Evolutionary biology, Polyphyly, Parthenogenesi, Ploidy, Hybridization, Ecology, Evolution, Behavior and Systematics, Pijnackeria recondita
الوصف: The stick-insect genus Pijnackeria includes four diploid bisexual and two polyploid (3n, 4n) parthenogenetic species. Earlier analyses of the tetraploid parthenogen P. hispanica using mitochondrial markers allowed tracing its maternal ancestry to Pijnackeria originis, while no maternal nuclear contribution was found, thus suggesting an androgenetic and hybrid origin. The recently described Pijnackeria recondita—showing, among other features, a specific antennal structure linking it to the tetraploid parthenogen—prompted us to check whether the new species could be theunknown paternal ancestorof P. hispanica. In this work, we use karyology and molecular analysis of the mitochondrial gene cytochrome c oxidase subunit 2 (cox2) and the nuclear gene elongation factor 1 subunit α (ef1-α) to investigate the origin of such a complex tetraploid hybrid parthenogen. The molecular analysis supported P. recondita as being a paternal ancestor of P. hispanica, but also suggested that two more fathering species have to be taken into account: P. barbarae and the unknown paternal ancestor of the triploid hybrid P. masettii. Therefore, P. hispanica is apparently a polyphyletic chimeric androgen, which we propose to indicate as an androgenetic complex. Our data also revealed that P. hispanica is between 1.96 Myr and 3.31 Myr old, making it the oldest parthenogenetic taxon discovered among insects.
وصف الملف: STAMPA
اللغة: English
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcc757026bfac1cb99a0704376dbdab6
https://hdl.handle.net/11585/781529
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....fcc757026bfac1cb99a0704376dbdab6
قاعدة البيانات: OpenAIRE