Origin and diversification of Cristaria (Malvaceae) parallel Andean orogeny and onset of hyperaridity in the Atacama Desert

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Title:Main Title: Origin and diversification of Cristaria (Malvaceae) parallel Andean orogeny and onset of hyperaridity in the Atacama Desert
Description:Abstract: The Atacama Desert in western South America is considered as one of the driest places on earth, but is nevertheless characterized by surprisingly high species richness and levels of endemism. The plant genus Cristaria (Malvaceae), with ca. 21 species, is one of the most diverse genera of the Atacama Desert, while the much less diverse sister genus Lecanophora (7 species) is found east of the Andes. Here, we use DNA sequence data and divergence time estimates in order to investigate the biogeographical history of the Atacama species of Cristaria. We further investigate a possible influence of Andean uplift and the subsequent onset of hyperaridity in the Atacama Desert on diversification times in Cristaria. We sequenced three plastid markers (ndhF, trnK(matK) & rpl16) for 19 species of Cristaria and two species of Lecanophora from the Atacama Desert and Argentina, respectively. Further, we included sequences of the same plastid regions from GenBank in order to get a comprehensive dataset of Malvoideae. Phylogenetic relationships were inferred using maximum likelihood and Bayesian analyses, and divergence times were estimated with BEAST2. Our results place the monophyletic genera Cristaria and Lecanophora as sister groups in a clade sister to the rest of Malveae. The split between these two lineages (~20 Ma) correlates with Andean uplift during the early Miocene, indicating a vicariant event. During the late Miocene, two Mediterranean members of Cristaria separated from the major Atacama clade. The subsequent diversification of the latter one correlates with the onset and subsequent temporal expansion of hyperarid conditions in the Atacama Desert since the late Miocene and during the Quaternary climate oscillations.
Identifier:10.1016/j.gloplacha.2019.102992 (DOI)
Citation Advice:Böhnert, T., Luebert, F., Ritter, B., Merklinger, F.F., Stoll, A., Schneider, J.V., Quandt, D. & Weigend, M. (2019) Origin and diversification of Cristaria (Malvaceae) parallel Andean orogeny and onset of hyperaridity in the Atacama Desert. Global and Planetary Change.
Responsible Party
Creators:Tim Böhnert (Author), Federico Luebert (Author), Benedikt Ritter (Author), Felix F. Merklinger (Author), Alexandra Stoll (Author), Julio Schneider (Author), Dietmar Quandt (Author), Maximilian Weigend (Author)
Publisher:Elsevier
Publication Year:2019
Topic
CRC1211 Topic:Biology
Related Subprojects:B1, D1
Subjects:Keywords: Phylogeny, Dating , Evolution, Biogeography
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Filename:Boehnert_etal_2019_Cristaria_Dating_GloPlaChange.pdf
Data Type:Text - Article
File Size:2.1 MB
Date:Issued: 25.07.2019
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Only Project Members
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
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Publication Status:Published
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:Global and Planetary Change
Source Website:https://www.sciencedirect.com/science/article/pii/S0921818119301936
Volume:181
Number of Pages:8 (1 - 8)
Metadata Details
Metadata Creator:Tim Böhnert
Metadata Created:25.07.2019
Metadata Last Updated:25.07.2019
Subproject:B1
Funding Phase:1
Metadata Language:English
Metadata Version:V50
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