http://www.cnr.it/ontology/cnr/individuo/prodotto/ID202507

Large-scale phylogeography of the disjunct Neotropical tree species Schizolobium parahyba (Fabaceae-Caesalpinioideae) (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Large-scale phylogeography of the disjunct Neotropical tree species Schizolobium parahyba (Fabaceae-Caesalpinioideae) (Articolo in rivista) (literal)

Anno

2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.ympev.2012.06.012 (literal)

Alternative label

A.C. Turchetto-Zolet, F. Cruz, G.G. Vendramin, M.F. Simon, F. Salgueiro, M. Margis-Pinheiro, R. Margis (2012)
Large-scale phylogeography of the disjunct Neotropical tree species Schizolobium parahyba (Fabaceae-Caesalpinioideae)
in Molecular phylogenetics and evolution (Print); Academic Press Inc., Elsevier Science, San Diego (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

A.C. Turchetto-Zolet, F. Cruz, G.G. Vendramin, M.F. Simon, F. Salgueiro, M. Margis-Pinheiro, R. Margis (literal)

Pagina inizio

174 (literal)

Pagina fine

182 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

65 (literal)

Rivista

Molecular phylogenetics and evolution (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

1 (literal)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

[ 1 ] Univ Fed Rio Grande do Sul, Ctr Biotecnol, Programa Posgrad Genet & Biol Mol, BR-91501970 Porto Alegre, RS, Brazil [ 2 ] CNR, Plant Genet Inst, Florence, Italy [ 3 ] Embrapa Recursos Genet & Biotecnol, Brasilia, DF, Brazil [ 4 ] Univ Fed Estado Rio de Janeiro, Dept Bot, Rio De Janeiro, RJ, Brazil (literal)

Titolo

Large-scale phylogeography of the disjunct Neotropical tree species Schizolobium parahyba (Fabaceae-Caesalpinioideae) (literal)

Abstract

Neotropical rainforests exhibit high levels of endemism and diversity. Although the evolutionary genetics of plant diversification has garnered increased interest, phylogeographic studies of widely distributed species remain scarce. Here we describe chloroplast and nuclear variation patterns in Schizolobium parahyba (Fabaceae), a widespread tree in Neotropical rainforests that harbor two varieties with a disjunct distribution. Chloroplast and nuclear sequence analyses yielded 21 and 4 haplotypes, respectively. Two genetic diversity centers that correlate with the two known varieties were identified: the Southeastern Atlantic forest and the Amazonian basin. In contrast, the populations from southern and northeastern Atlantic forests and Andean-Central American forests exhibited low levels of genetic diversity and divergent haplotypes, likely related to historical processes that impact the flora and fauna in these regions, such as a founder's effect after dispersion and demographic expansion. Phylogeographic and demographic patterns suggest that episodes of genetic isolation and dispersal events have shaped the evolutionary history for this species, and different patterns have guided the evolution of S. parahyba. Moreover, the results of this study suggest that the dry corridor formed by Cerrado and Caatinga ecoregions and the Andean uplift acted as barriers to this species' gene flow, a picture that may be generalized to most of the plant biodiversity tropical woodlands and forests. These results also reinforce the importance of evaluating multiple genetic markers for a more comprehensive understanding of population structure and history. Our results provide insight into the conservation efforts and ongoing work on the genetics of population divergence and speciation in these Neotropical rainforests. (C) 2012 Elsevier Inc. All rights reserved. (literal)

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