The Hyalella species flock of Lake Titicaca (Crustacea: Amphipoda): perspectives and drawbacks of dna-based identification
| Autor: | Francesco Zapelloni, José A. Jurado-Rivera, Joan Pons, Damià Jaume, Carlos Juan |
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| Přispěvatelé: | Agencia Estatal de Investigación (España), European Commission, Ministerio de Ciencia, Innovación y Universidades (España) |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1875-9866 1383-4517 |
| Popis: | Lake Titicaca, in the High Andes of Perú and Bolivia, harbours the world’s third most speciose ancient-lake amphipod radiation on record. A minimum of nineteen species of Hyalella derived from at least five independent colonization episodes concentrate in this high altitude water body, although the actual species number present has not yet been established and could be much higher. Herein, we take advantage of the description of three new species (H. krolli, H. gonzalezi, and H. hirsuta) and the re-description of other two (H. solida and H. nefrens) to assess the feasibility of adopting a dna-based identification approach to resolve the magnitude of this highly speciose amphipod assemblage. A Bayesian phylogenetic analysis of the evolutionary relationships among South American Hyalella cox1 haplotypes, including those of four out of the five species dealt with herein, shows a great disagreement between taxonomic units delimited under morphological and genetic data, hampering species identification exclusively based on cox1 dna barcode sequences. This work was supported by the Spanish Agencia Española de Investigación, (aei) and the European Regional Development Fund (feder) under Grant cgl2016-76164-P. Francesco Zapelloni benefited from grant bes-2017–081069 of the Spanish Ministerio de Ciencia, Innovación y Universidades. |
| Databáze: | OpenAIRE |
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