English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/162255
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Título

High planktonic diversity in mountain lakes contains similar contributions of autotrophic, heterotrophic and parasitic eukaryotic life forms

AutorOrtiz-Álvarez, Rüdiger ; Triadó-Margarit, Xavier ; Camarero, Lluís ; Casamayor, Emilio O. ; Catalán, Jordi
Fecha de publicación2018
EditorNature Publishing Group
CitaciónScientific Reports 8 : 4457 (2018)
ResumenA rich eukaryotic planktonic community exists in high-mountain lakes despite the diluted, oligotrophic and cold, harsh prevailing conditions. Attempts of an overarching appraisal have been traditionally hampered by observational limitations of small, colorless, and soft eukaryotes. We aimed to uncover the regional eukaryotic biodiversity of a mountain lakes district to obtain general conclusions on diversity patterns, dominance, geographic diversification, and food-web players common to oligotrophic worldwide distributed freshwater systems. An unprecedented survey of 227 high-altitude lakes comprising large environmental gradients was carried out using Illumina massive tag sequencing of the 18S rRNA gene. We observed a large Chrysophyceae dominance in richness, abundance and novelty, and unveiled an unexpected richness in heterotrophic phagotrophs and parasites. In particular, Cercozoa and Chytridiomycota showed diversity features similar to the dominant autotrophic groups. The prominent beta-dispersion shown by parasites suggests highly specific interactions and a relevant role in food webs. Interestingly, the freshwater Pyrenean metacommunity contained more diverse specific populations than its closest marine oligotrophic equivalent, with consistently higher betadiversity. The relevance of unseen groups opens new perspectives for the better understanding of planktonic food webs. Mountain lakes, with remarkable environmental idiosyncrasies, may be suitable environments for the genetic diversification of microscopic eukaryotic life forms.
DescripciónEste artículo contiene 11 páginas, 2 tablas, 5 figuras.
Versión del editorhttps://dx.doi.org/:10.1038/s41598-018-22835-3
URIhttp://hdl.handle.net/10261/162255
ISSN2045-2322
E-ISSN2045-2322
Aparece en las colecciones: (CEAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Ortiz-Alvarez 2018.pdf2,25 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.