What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i>
<i>Bromus picoeuropeanus</i> is a recently described species belonging to a complex genus of grasses. It inhabits stony soils at heights ranging from 1600 to 2200 m in Picos de Europa (Cantabrian Mountains, northern Spain). This species is morphologically very similar to <i>B. erec...
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MDPI AG
2023-04-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/7/1531 |
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| author | Claudia González-Toral Herminio S. Nava José Antonio Fernández Prieto Eduardo Cires |
| author_facet | Claudia González-Toral Herminio S. Nava José Antonio Fernández Prieto Eduardo Cires |
| author_sort | Claudia González-Toral |
| collection | DOAJ |
| description | <i>Bromus picoeuropeanus</i> is a recently described species belonging to a complex genus of grasses. It inhabits stony soils at heights ranging from 1600 to 2200 m in Picos de Europa (Cantabrian Mountains, northern Spain). This species is morphologically very similar to <i>B. erectus</i>, partially sharing its presumed distribution range. We aim to determine the relationship between these species and their altitudinal ranges in Picos de Europa and the Cantabrian Mountains by conducting phylogenetic analyses based on nuclear (ETS and ITS) and chloroplastic (trnL) markers. Phylogenetic trees were inferred by Maximum Likelihood and Bayesian Inference. Haplotype networks were estimated based on the plastid marker. Although the ITS topologies could not generate exclusive clades for these species, the ETS analyses generated highly supported <i>B. picoeuropeanus</i> exclusive clades, which included locations outside its altitudinal putative range. The ETS-ITS and ETS-ITS-trnL topologies generated <i>B. picoeuropeanus</i> exclusive clades, whereas the trnL-based trees and haplotype networks were unable to discriminate <i>B. erectus</i> and <i>B. picoeuropeanus</i>. This evidence suggests that <i>B. picoeuropeanus</i> is a separate species with a larger distribution than previously thought, opening new questions regarding the evolution of <i>B. erectus</i> and other similar species in European mountainous systems. However, more information is needed regarding <i>B. picoeuropeanus</i> susceptibility to temperature rises. |
| first_indexed | 2024-03-11T05:28:16Z |
| format | Article |
| id | doaj.art-e1bd5f32011449b88c0e59c45ea002e8 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T05:28:16Z |
| publishDate | 2023-04-01 |
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| record_format | Article |
| series | Plants |
| spelling | doaj.art-e1bd5f32011449b88c0e59c45ea002e82023-11-17T17:23:54ZengMDPI AGPlants2223-77472023-04-01127153110.3390/plants12071531What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i>Claudia González-Toral0Herminio S. Nava1José Antonio Fernández Prieto2Eduardo Cires3Department of Organisms and Systems Biology, University of Oviedo, C/Catedrático Rodrigo Uría s/n, 33071 Oviedo, SpainDepartment of Organisms and Systems Biology, University of Oviedo, C/Catedrático Rodrigo Uría s/n, 33071 Oviedo, SpainDepartment of Organisms and Systems Biology, University of Oviedo, C/Catedrático Rodrigo Uría s/n, 33071 Oviedo, SpainDepartment of Organisms and Systems Biology, University of Oviedo, C/Catedrático Rodrigo Uría s/n, 33071 Oviedo, Spain<i>Bromus picoeuropeanus</i> is a recently described species belonging to a complex genus of grasses. It inhabits stony soils at heights ranging from 1600 to 2200 m in Picos de Europa (Cantabrian Mountains, northern Spain). This species is morphologically very similar to <i>B. erectus</i>, partially sharing its presumed distribution range. We aim to determine the relationship between these species and their altitudinal ranges in Picos de Europa and the Cantabrian Mountains by conducting phylogenetic analyses based on nuclear (ETS and ITS) and chloroplastic (trnL) markers. Phylogenetic trees were inferred by Maximum Likelihood and Bayesian Inference. Haplotype networks were estimated based on the plastid marker. Although the ITS topologies could not generate exclusive clades for these species, the ETS analyses generated highly supported <i>B. picoeuropeanus</i> exclusive clades, which included locations outside its altitudinal putative range. The ETS-ITS and ETS-ITS-trnL topologies generated <i>B. picoeuropeanus</i> exclusive clades, whereas the trnL-based trees and haplotype networks were unable to discriminate <i>B. erectus</i> and <i>B. picoeuropeanus</i>. This evidence suggests that <i>B. picoeuropeanus</i> is a separate species with a larger distribution than previously thought, opening new questions regarding the evolution of <i>B. erectus</i> and other similar species in European mountainous systems. However, more information is needed regarding <i>B. picoeuropeanus</i> susceptibility to temperature rises.https://www.mdpi.com/2223-7747/12/7/1531<i>Bromus</i>Cantabrian Mountainsexternal transcribed spacer (ETS)internal transcribed spacer (ITS)PoaceaetrnL |
| spellingShingle | Claudia González-Toral Herminio S. Nava José Antonio Fernández Prieto Eduardo Cires What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> Plants <i>Bromus</i> Cantabrian Mountains external transcribed spacer (ETS) internal transcribed spacer (ITS) Poaceae trnL |
| title | What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> |
| title_full | What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> |
| title_fullStr | What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> |
| title_full_unstemmed | What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> |
| title_short | What Hides in the Heights? The Case of the Iberian Endemism <i>Bromus picoeuropeanus</i> |
| title_sort | what hides in the heights the case of the iberian endemism i bromus picoeuropeanus i |
| topic | <i>Bromus</i> Cantabrian Mountains external transcribed spacer (ETS) internal transcribed spacer (ITS) Poaceae trnL |
| url | https://www.mdpi.com/2223-7747/12/7/1531 |
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