Generic relationships and dating of lineages in Winteraceae based on nuclear (ITS) and plastid (rpS16 and psbA-trnH) sequence data


Autoria(s): MARQUINEZ, Xavier; LOHMANN, Lucia G.; SALATINO, Maria L. Faria; SALATINO, Antonio; GONZALEZ, Favio
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2009

Resumo

Phylogenetic analyses of representative species from the five genera of Winteraceae (Drimys, Pseudowintera, Takhtajania, Tasmannia, and Zygogynum s.l.) were performed using ITS nuclear sequences and a combined data-set of ITS + psbA-trnH + rpS16 sequences (sampling of 30 and 15 species, respectively). Indel informativity using simple gap coding or gaps as a fifth character was examined in both data-sets. Parsimony and Bayesian analyses support the monophyly of Drimys, Tasmannia, and Zygogynum s.l., but do not support the monophyly of Belliolum, Zygogynum s.s., and Bubbia. Within Drimys, the combined data-set recovers two subclades. Divergence time estimates suggest that the splitting between Drimys and its sister clade (Pseudowintera + Zygogynum s.l.) occurred around the end of the Cretaceous; in contrast, the divergence between the two subclades within Drimys is more recent (15.5-18.5 MY) and coincides in time with the Andean uplift. Estimates suggest that the earliest divergences within Winteraceae could have predated the first events of Gondwana fragmentation. (C) 2009 Elsevier Inc. All rights reserved.

Instituto para el Desarrollo de la Ciencias y la Tecnologia ""Francisco Jose de Caldas""

"Instituto para el Desarrollo de la Ciencias y la Tecnologia """"Francisco Jose de Caldas"""""

""Programa de apoyo a doctorados nacionales""

Programa de apoyo a doctorados nacionales

Botany Department of the University of Sao Paulo (USP, Brazil)

Botany Department of the University of Sao Paulo (USP, Brazil)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

CNPq (Conselho Nacional do Desenvolvimento Cientifico e Tecnologico, Brazil)

COL

COL

Identificador

MOLECULAR PHYLOGENETICS AND EVOLUTION, v.53, n.2, p.435-449, 2009

1055-7903

http://producao.usp.br/handle/BDPI/27298

10.1016/j.ympev.2009.07.001

http://dx.doi.org/10.1016/j.ympev.2009.07.001

Idioma(s)

eng

Publicador

ACADEMIC PRESS INC ELSEVIER SCIENCE

Relação

Molecular Phylogenetics and Evolution

Direitos

restrictedAccess

Copyright ACADEMIC PRESS INC ELSEVIER SCIENCE

Palavras-Chave #Canellales #Divergence time estimates #Drimys #Gondwana biogeography #Pseudowintera #Takhtajania #Tasmannia #Winteraceae #Zygogynum #NONCODING CHLOROPLAST DNA #ANGIOSPERM PHYLOGENY #RIBOSOMAL DNA #MOLECULAR PHYLOGENETICS #NUCLEOTIDE-SEQUENCES #BASAL ANGIOSPERMS #SPACER SEQUENCES #SOUTH-AMERICA #NEW-ZEALAND #OLD-WORLD #Biochemistry & Molecular Biology #Evolutionary Biology #Genetics & Heredity
Tipo

article

original article

publishedVersion