Range expansion and contraction of Tillandsia landbeckii lomas in the hyperarid Chilean Atacama Desert indicates ancient introgression and geneflow

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Title:Main Title: Range expansion and contraction of Tillandsia landbeckii lomas in the hyperarid Chilean Atacama Desert indicates ancient introgression and geneflow
Description:Abstract: Among the fascinating and highly specialized vascular plants in the hyperarid core of the Chilean and Peruvian Atacama Desert there are few Tillandsia species from the bromeliad family (Bromeliaceae). These grow epiarenically on bare sand without a functional root system, and in some rare cases they build up a monospecific and often the only landscape characterizing vegetation type, which is called Tillandsiales or Tillandsia loma. Tillandsia landbeckii is the dominating epiarenic species in Chile totally dependent on fog serving as the only water resource. Herein we elaborate on the hypothesis that migration and multiple colonization in concert with putative introgression from other Tillandsia species build up the present day phylogeographic distribution pattern and may contribute to the evolutionary dynamics and long-term success in hyperarid desert systems. Genomic analyses using GBS (genotyping-by-sequencing) data from the nuclear and plastid genome were conducted at the population level. A genome skimming approach was used to generate reference plastome data. The results indicate that both, multiple colonization and secondary contact of old gene pools and interspecies geneflow, contribute to present-day population genetic structure. Local-scale analysis also indicates that these past footprints of evolutionary history do contribute to present-day local adaptive potential of the species.
Identifier:10.1016/j.ppees.2022.125689 (DOI)
Citation Advice:https://doi.org/10.1016/j.ppees.2022.125689
Responsible Party
Creators:Marcus Koch (Author), Christiane Kiefer (Author), Johanna Möbus (Author), Dietmar Quandt (Author), Felix F. Merklinger (Author), Dörte Harpke (Author), Francisco Villasante Benavides (Author)
Publisher:Elsevier
Publication Year:2022
Topic
CRC1211 Topic:Biology
Related Subproject:B1
Subject:Keyword: Population Genetics
Geogr. Information Topic:Biota
File Details
Filename:Koch_et_al_2022.pdf
Data Type:Text - Publication
File Size:7 MB
Date:Accepted: 17.07.2022
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:None
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Specific Information - Publication
Publication Status:Accepted
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:Perspectives in Plant Ecology, Evolution and Systematics
Source Website:www.elsevier.com/locate/ppees
Issue:125689
Volume:56
Number of Pages:14 (1 - 14)
Metadata Details
Metadata Creator:Johanna Möbus
Metadata Created:24.01.2023
Metadata Last Updated:26.01.2023
Subproject:B1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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