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Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales) by Federico Luebert; Hartmut H. Hilger; Maximilian Weigend is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales) about?

The uplift of the Andes was a major factor for plant diversification in South America and had significant effects on the climatic patterns at the continental scale. It was crucial for the formation of the arid environments in south-eastern and western South America. However, both the timing of the major stages of the Andean uplift and the onset of aridity in western South America remain controversial. In this paper we examine the hypothesis that the Andean South American groups of Heliotropium originated and diversified in response to Andean orogeny during the late Miocene and a the subsequent development of aridity. To this end, we estimate divergence times and likely biogeographical origins of the major clades in the phylogeny of Heliotropium, using both Bayesian and likelihood methods. Divergence times of all Andean clades in Heliotropium are estimated to be of late Miocene or Pliocene ages. At least three independent Andean diversification events can be recognized within Heliotropium. Timing of the diversification in the Andean lineages Heliotropium sects.Heliothamnus, Cochranea, Heliotrophytum, Hypsogenia, Plagiomeris, Platygyne clearly correspond to a rapid, late Miocene upli

Who reads Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales)?

Author

Federico Luebert; Hartmut H. Hilger; Maximilian Weigend

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 1055-7903)

Published

2011

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)