Geographic distance shapes morphological and molecular disparities in a common diatom species as revealed by geometric morphometry and metabarcoding
[EN]Diatoms, a highly diverse group, are sensitive indicators of aquatic environmental conditions, yet doubts persist regarding species distribution and distance-based factors influencing their populations. This study explores the relationship between geographical distance and the morphological and...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de León |
| Repositorio: | BULERIA. Repositorio Institucional de la Universidad de León |
| OAI Identifier: | oai:buleria.unileon.es:10612/23986 |
| Acceso en línea: | https://hdl.handle.net/10612/23986 |
| Access Level: | acceso abierto |
| Palabra clave: | Ecología. Medio ambiente RbcL marker Shallow ponds Ecological processes 2417.13 Ecología Vegetal |
| Sumario: | [EN]Diatoms, a highly diverse group, are sensitive indicators of aquatic environmental conditions, yet doubts persist regarding species distribution and distance-based factors influencing their populations. This study explores the relationship between geographical distance and the morphological and genetic differences among Achnanthidium minutissimum populations in freshwater ecosystems. Cell outlines were objectively captured by means of geometric morphometry, whereas rbcL marker was used for molecular approach. Our results indicate that the geographical factors significantly influence the morphological and molecular disparities among populations. Despite the absence of evident physical barriers, persistent spatial distance contributes to the observed differentiation among diatom populations. This emphasizes the crucial role of geographical isolation in shaping genetic divergence and morphological disparities, highlighting the need to consider spatial factors in understanding diatom diversity and distribution. Additionally, the study emphasizes the significance of molecular tools in revealing hidden genetic patterns and exploring evolutionary dynamics within diatom species. |
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