Phylogenetic analysis of Ascidae sensu lato and related groups (Acari: Mesostigmata: Gamasina) based on nuclear ribosomal DNA partial sequences

Autor(es)

Sourassou, Nazer Famah ^[1] ; de Moraes, Gilberto Jose ^[1] ; Delalibera Junior, Italo ^[1] ; Correa, Alberto Soares ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Entomol & Acarol, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SYSTEMATIC AND APPLIED ACAROLOGY; v. 20, n. 3, p. 225-240, APR 17 2015.
• Citações Web of Science: 7

Resumo

An analysis of the phylogeny of Ascidae sensu lato and related groups based on DNA data is presented. This group was recently separated in Ascidae sensu stricto, Melicharidae and Blattisociidae, retaining the first two families in Ascoidea and moving the third to Phytoseioidea. These changes were made based mainly on the morphology of the spermathecal apparatus. On the other hand, considerable morphological similarities exist between some genera of Ascidae s.l. and of Phytoseiidae and Rhodacaridae. This study uses partial sequences from the 18S and 28S regions of the nuclear ribosomal DNA to infer the phylogenetic relationships between Ascidae s.s., Melicharidae and Blattisociidae as well as their relationships with Phytoseiidae and Rhodacaridae. Results obtained with the Bayesian and Maximum Likelihood methods supported the paraphyly of Ascidae s.l., but did not support the recent assignment of their members into the recently conformed superfamilies. The results also suggested that Blattisociidae and Phytoseiidae constitute a monophyletic group and that Rhodacaridae is paraphyletic. Except for Protogamasellopsis posnaniensis Wisniewski and Hirschmann, all rhodacaroid representatives considered in this analysis (Digamasellidae, Ologamasidae and Rhodacaridae), as well as Zygoseius Berlese (a genus currently of uncertain familial placement), were placed at the base of the constructed phylogenetic tree, constituting a sister group of the previously mentioned taxa. The phylogenetic hypothesis presented here suggests the need to reconsider the morphological structures presently used to characterize the families of Ascoidea, Phytoseioidea and Rhodacaroidea. (AU)

• Processo FAPESP: 12/21412-2 - Caracterização molecular de grupos taxonômicos relacionados de Phytoseiidae, Ascidae sensu lato e Rhodacaridae, potencialmente úteis no controle biológico de organismos pragas
• Beneficiário: Nazer Famah Sourassou
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado