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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.)

Phylogeny of Cissus (Vitaceae) focusing on South American species

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Author(s):
Rodrigues, Jacqueline Gomes [1] ; Lombardi, Julio Antonio [2] ; Lovato, Maria Bernadete [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Minas Gerais, Inst Ciencias Biol, Dept Biol Geral, BR-31270901 Belo Horizonte, MG - Brazil
[2] Univ Estadual Paulista UNESP, Inst Biociencias Rio Claro, Dept Bot, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Taxon; v. 63, n. 2, p. 287-298, APR 2014.
Web of Science Citations: 9
Abstract

Widespread in the tropics, Cissus includes more than 300 species with great morphological diversity. Of the 78 species found in the New World, 64 grow in South America. This paper investigates phylogenetic relationships within Cissus, focusing on the South American species, insufficiently sampled in previous studies. Both plastid (trnL intron, trnL-F intergenic spacer, rps16) and nuclear ribosomal internal transcribed spacer (ITS) DNA sequences were analyzed with parsimony, likelihood and Bayesian inference. Divergence times were estimated with relaxed-clock Bayesian molecular dating. The evolution of leaf shape was reconstructed using parsimony. South American Cissus is resolved as not monophyletic. It consists of three clades: Cissus striata, Cissus trianae, and core Cissus. A clear separation between the Cissus striata clade and the other Cissus species was observed based on molecular and morphological characters. The relationship between the only species of the Cissus trianae clade and those of core Cissus is not clarified by our data. The geographic disjunction between the New and Old World taxa of core Cissus was estimated to have originated in the Late Eocene, and diversification in the Americas started in the Oligocene. In spite of the plasticity of leaf shape within species or individuals, this character is considered useful for infrageneric classification. (AU)

FAPESP's process: 10/17400-3 - Taxonomic and floristic studies in the outside Amazon Brazil
Grantee:Julio Antonio Lombardi
Support Opportunities: Regular Research Grants