Diversity of Phylogenetic Information According to the Locus and the Taxonomic Level: An Example from a Parasitic Mesostigmatid Mite Genus

International Journal of Molecular Sciences

Lise Roy²  Ashley P.G. Dowling¹  Claude Marie Chauve² 

[1] Department of Entomology, University of Arkansas, Fayetteville, USA; E-Mail:;Laboratoire de Parasitologie, Université de Lyon, Ecole Nationale Vétérinaire de Lyon, Marcy-L’Etoile, France; E-Mails:

关键词: phylogenetic signal;    evolution of specialization;    Dermanyssus;    Acari;    Mesostigmata;   

DOI  :  10.3390/ijms11041704

来源: mdpi

【 摘 要 】

Molecular markers for cladistic analyses may perform differently according to the taxonomic group considered and the historical level under investigation. Here we evaluate the phylogenetic potential of five different markers for resolving evolutionary relationships within the ectoparasitic genus Dermanyssus at the species level, and their ability to address questions about the evolution of specialization. COI provided 9–18% divergence between species (up to 9% within species), 16S rRNA 10–16% (up to 4% within species), ITS1 and 2 2–9% (up to 1% within species) and Tropomyosin intron n 8–20% (up to 6% within species). EF-1α revealed different non-orthologous copies within individuals of Dermanyssus and Ornithonyssus. Tropomyosin intron n was shown containing consistent phylogenetic signal at the specific level within Dermanyssus and represents a promising marker for future prospects in phylogenetics of Acari. Phylogenetic analyses revealed that the generalist condition is apomorphic and D. gallinae might represent a complex of hybridized lineages. The split into hirsutus-group and gallinae-group in Dermanyssus does not seem to be appropriate based upon these results and D. longipes appears to be composed of two different entities.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.