title: Is ITS-2 rDNA suitable marker for genetic characterization of Sarcoptes mites from different wild animals in different geographic areas?
abstract: The present study examined the relationship among individual Sarcoptes scabiei mites from 13 wild mammalian populations belonging to nine species in four European countries using the second internal transcribed spacer (ITS-2) of nuclear ribosomal DNA (rDNA) as genetic marker. The ITS-2 plus primer flanking 5.8S and 28S rDNA (ITS-2+) was amplified from individual mites by polymerase chain reaction (PCR) and the amplicons were sequenced directly. A total of 148 ITS-2+ sequences of 404bp in length were obtained and 67 variable sites were identified (16.59%). UPGMA analyses did not show any geographical or host-specific clustering, and a similar outcome was obtained using population pairwise Fst statistics. These results demonstrated that ITS-2 rDNA does not appear to be suitable for examining genetic diversity among mite populations.
authors.affiliation: Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus Las Lagunillas, s.n., E-23071 Jaén, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Alasaad
authors.forename: D
authors.initials: D
authors.lastname: Soglia
authors.forename: V
authors.initials: V
authors.lastname: Spalenza
authors.forename: S
authors.initials: S
authors.lastname: Maione
authors.forename: R C
authors.initials: RC
authors.lastname: Soriguer
authors.forename: J M
authors.initials: JM
authors.lastname: Pérez
authors.forename: R
authors.initials: R
authors.lastname: Rasero
authors.forename: M P Ryser
authors.initials: MP
authors.lastname: Degiorgis
authors.forename: H
authors.initials: H
authors.lastname: Nimmervoll
authors.forename: X Q
authors.initials: XQ
authors.lastname: Zhu
authors.forename: L
authors.initials: L
authors.lastname: Rossi
mesh_terms: D000818:Animals; D000835:Animals, Wild; D021903:DNA, Ribosomal Spacer / Q000235:genetics*; D005060:Europe / Q000453:epidemiology; D005819:Genetic Markers; D008322:Mammals / Q000469:parasitology; D008924:Mite Infestations / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D010802:Phylogeny; D040021:Sarcoptidae / Q000235:genetics*
chemical_list: D021903:DNA, Ribosomal Spacer; D005819:Genetic Markers