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Ledent A, Désamoré A, Laenen B, Mardulyn P, McDaniel SF, Zanatta F, Patiño J, Vanderpoorten A. No borders during the post-glacial assembly of European bryophytes. Ecol Lett 2019; 22:973-986. [PMID: 30900805 DOI: 10.1111/ele.13254] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/11/2018] [Accepted: 02/24/2019] [Indexed: 11/28/2022]
Abstract
Climatic fluctuations during the Last Glacial Maximum (LGM) exerted a profound influence on biodiversity patterns, but their impact on bryophytes, the second most diverse group of land plants, has been poorly documented. Approximate Bayesian computations based on coalescent simulations showed that the post-glacial assembly of European bryophytes involves a complex history from multiple sources. The contribution of allochthonous migrants was 95-100% of expanding populations in about half of the 15 investigated species, which is consistent with the globally balanced genetic diversities and extremely low divergence observed among biogeographical regions. Such a substantial contribution of allochthonous migrants in the post-glacial assembly of Europe is unparalleled in other plants and animals. The limited role of northern micro-refugia, which was unexpected based on bryophyte life-history traits, and of southern refugia, is consistent with recent palaeontological evidence that LGM climates in Eurasia were much colder and drier than what palaeoclimatic models predict.
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Affiliation(s)
- A Ledent
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
| | - A Désamoré
- Department of Ecology, Environment, and Plant Sciences, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - B Laenen
- Department of Ecology, Environment, and Plant Sciences, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - P Mardulyn
- Evolutionary Biology & Ecology, Université Libre de Bruxelles, 1050, Brussels, Belgium
| | - S F McDaniel
- Biology Department, University of Florida, Gainesville, FL, 32611, USA
| | - F Zanatta
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
| | - J Patiño
- Plant Conservation and Biogeography Group, Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, 38071, La Laguna, Spain.,Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), 38071, La Laguna, Spain
| | - A Vanderpoorten
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
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Magdy M, Werner O, McDaniel SF, Goffinet B, Ros RM. Genomic scanning using AFLP to detect loci under selection in the moss Funaria hygrometrica along a climate gradient in the Sierra Nevada Mountains, Spain. Plant Biol (Stuttg) 2016; 18:280-288. [PMID: 26284822 DOI: 10.1111/plb.12381] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 08/11/2015] [Indexed: 06/04/2023]
Abstract
The common cord moss Funaria hygrometrica has a worldwide distribution and thrives in a wide variety of environments. Here, we studied the genetic diversity in F. hygrometrica along an abiotic gradient in the Mediterranean high mountain of Sierra Nevada (Spain) using a genome scan method. Eighty-four samples from 17 locations from 24 to 2700 m were fingerprinted based on their amplified fragment length polymorphism (AFLP) banding pattern. Using PCA and Bayesian inference we found that the genetic diversity was structured in three or four clusters, respectively. Using a genome scan method we identified 13 outlier loci, which showed a signature of positive selection. Partial Mantel tests were performed between the Euclidean distance matrices of geographic and climatic variables, versus the pair-wise genetic distance of the AFLP dataset and AFLP-positive outliers dataset. AFLP-positive outlier data were significantly correlated with the gradient of the climatic variables, suggesting adaptive variation among populations of F. hygrometrica along the Sierra Nevada Mountains. We highlight the additional analyses necessary to identify the nature of these loci, and their biological role in the adaptation process.
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Affiliation(s)
- M Magdy
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Murcia, Murcia, Spain
- Genetics Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - O Werner
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Murcia, Murcia, Spain
| | - S F McDaniel
- Biology Department, University of Florida, Gainesville, FL, USA
| | - B Goffinet
- Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - R M Ros
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Murcia, Murcia, Spain
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