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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Phylogenetic relationships of the Neotropical spider genus Itatiaya (Araneae)

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Author(s):
Polotow, Daniele [1, 2] ; Brescovit, Antonio D. [2]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil
[2] Inst Butantan, Lab Artropodes, BR-05503900 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ZOOLOGICA SCRIPTA; v. 40, n. 2, p. 187-193, MAR 2011.
Web of Science Citations: 0
Abstract

A cladistic analysis using parsimony under equal weights is applied to test the phylogenetic relationships of Itatiaya Mello-Leitao, previously described in Ctenidae. The data matrix comprised 25 taxa scored for a total of 47 characters. The cladistic analysis yielded two equally parsimonious trees of 124 steps. The consensus of the two most parsimonious trees is used to discuss the phylogenetic relationships and justify taxonomic modifications. The results indicate that this genus is a representative of Zoropsidae, which is newly recorded from the Neotropical region. The monophyly of Itatiaya is supported by three non-ambiguous synapomorphies and three homoplastic synapomorphies. A new diagnosis is provided for Itatiaya. Itatiaya pucupucu is placed as sister species to the remaining species of the genus. A polytomic clade composed of Itatiaya modesta, Itatiaya iuba, Itatiaya apipema and the clade formed by Itatiaya tacamby + Itatiaya pykyyra is supported by the presence of modified cylindrical gland spigots. Additionally, the male of I. pykyyra Polotow \& Brescovit is described for the first time. (AU)

FAPESP's process: 06/55230-7 - Cladistic analysis of the spiders of the Cteninae subfamily and revision of the genus Celaetycheus Simon (Areneae: Ctenidae)
Grantee:Daniele Polotow Geraldo
Support type: Scholarships in Brazil - Doctorate