Orobothriurus (Scorpiones: Bothriuridae) phylogeny, Andean biogeography, and the relative importance of genitalic and somatic characters

Autor(es)

Mattoni, Camilo I. ^[1] ; Ochoa, Jose A. ^[2] ; Ojanguren Affilastro, Andres A. ^[3] ; Prendini, Lorenzo ^[4]

Afiliação do(s) autor(es)

^[1] Univ Nacl Cordoba, Lab Biol Reprod & Evoluc, Catedra Diversidad Anim 1, Fac Ciencias Exactas Fis & Nat, Cordoba - Argentina

^[2] Univ Sao Paulo, Dept Zool, Inst Biociencias, BR-05508900 Sao Paulo - Brazil

^[3] Museo Argentino Ciencias Nat Bernardino Rivadavia, CABA, Buenos Aires, DF - Argentina

^[4] Amer Museum Nat Hist, Scorp Systemat Res Grp, Div Invertebrate Zool, New York, NY 10024 - USA

• Tipo de documento: Artigo Científico
• Fonte: ZOOLOGICA SCRIPTA; v. 41, n. 2, p. 160-176, MAR 2012.
• Citações Web of Science: 10

Resumo

The genus Orobothriurus Maury, 1976 (Bothriuridae Simon, 1880) displays an Andean pattern of distribution, most of its species occurring at high altitudes (over 2000-2500 m to a maximum altitude record of 4910 m) from central Peru to Argentina. The recent discovery of several new species and the uncertain phylogenetic position of Orobothriurus lourencoi Ojanguren Affilastro, 2003, required a reanalysis of Orobothriurus phylogeny. Thirty bothriurid taxa, including all species of Orobothriurus and Pachakutej Ochoa, 2004, were scored for 65 morphological characters and analysed with parsimony under equal and implied weighting. The resulting topology justifies the establishment of a new genus, Rumikiru Ojanguren Affilastro et al., in press, for O. lourencoi and a closely related, new species, Rumikiru atacama Ojanguren Affilastro et al., in press. It also offers new insights about the phylogeny and biogeography of Orobothriurus and related genera. Characters from the male genitalia (i.e. hemispermatophore), comprising approximately 26% of the morphological matrix, were found to be less homoplastic than those from somatic morphology, contradicting suggestions that genitalia are uninformative or potentially misleading in phylogenetic studies. (AU)

• Processo FAPESP: 10/00018-9 - Análise cladística dos gêneros de Chactidae (Arachinda: Scorpiones), e sistemática da família
• Beneficiário: José Antonio Ochoa Cámara
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado