English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/59000
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Dated historical biogeography of the temperate Loliinae (Poaceae, Pooideae) grasses in the northern and southern hemispheres

AuthorsInda, Luis A.; Segarra-Moragues, José G. ; Mueller, Jochen; Peterson, Paul M.; Catalán, Pilar
KeywordsBiogeography
Divergence times
ITS and trnTF
Loliinae
Northern and southern hemisphere dispersals
Past reticulate history
Issue DateMar-2008
PublisherAcademic Press
CitationMolecular Phylogenetics and Evolution 46(3): 932-957 (2008)
AbstractDivergence times and biogeographical analyses have been conducted within the Loliinae, one of the largest subtribes of temperate grasses. New sequence data from representatives of the almost unexplored New World, New Zealand, and Eastern Asian centres were added to those of the pan Mediterranean region and used to reconstruct the phylogeny of the group and to calculate the times of lineage-splitting using Bayesian approaches. The traditional separation between broad-leaved and fine-leaved Festuca species was still maintained. though several new broad-leaved lineages fell within the fine-leaved clade or were placed in an unsupported intermediate position. A strong biogeographical signal was detected for several Asian-American, American, Neozeylandic, and Macaronesian clades with different affinities to both the broad and the fine-leaved Festuca. Bayesian estimates of divergence and dispersal-vicariance analyses indicate that the broad-leaved and fine-leaved Loliinae likely originated in the Miocene (13 My) in the panMediterranean-SW Asian region and then expanded towards C and E Asia from where they colonized the New World. Further expansions in America (10-3.8 My) showed a predominant migratory route from North to South (N America <-> the Andes <-> Patagonia). This late Tertiary scenario of successive colonizations and secondary polyploid radiations in the southern hemisphere from the northern hemisphere was accompanied by occasional transcontinental long-distance dispersal events between South America and New Zealand. Multiple Pliocene dispersal events (3.6-2.5 My) from the near SW European and NW African continents gave rise to the Macaronesian Loliinae flora, while a more recent Pleistocene origin (2-1 My) is hypothesized for the high polyploid lineages that successfully colonized newly deglaciated areas in both hemispheres.
Description26 paginas, 3 figuras, 2 tablas.
Publisher version (URL)http://dx.doi.org/10.1016/j.ympev.2007.11.022
URIhttp://hdl.handle.net/10261/59000
DOI10.1016/j.ympev.2007.11.022
ISSN1055-7903
E-ISSN1095-9513
Appears in Collections:(CIDE) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.