Species identification in the trematomid family using nuclear genetic markers
| Autor: | J. Rock, Filip Volckaert, Anton Van de Putte, J. K. J. Van Houdt, Karel Janko, Philippe Koubbi, Gregory E. Maes |
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| Přispěvatelé: | Czech Academy of Sciences [Prague] (CAS), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), POTSDAM INSTITUTE FOR CLIMATE IMPACT RESEARCH POTSDAM DEU, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Université Catholique de Louvain = Catholic University of Louvain (UCL), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2009 |
| Předmět: |
0106 biological sciences
Genetics 0303 health sciences Phenotypic plasticity biology biology.organism_classification 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Evolutionary biology Genetic marker Phylogenetic Pattern Trematomus Genetic algorithm Microsatellite Nototheniidae Identification (biology) 14. Life underwater General Agricultural and Biological Sciences [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography 030304 developmental biology |
| Zdroj: | Polar Biology Polar Biology, 2009, 32 (12), pp.1731-1741. ⟨10.1007/s00300-009-0672-8⟩ |
| ISSN: | 1432-2056 0722-4060 |
| Popis: | The Trematominae, a subfamily of the Nototheniidae, are typical of the high-Antarctic shelf waters. Within the Trematominae examples of phenotypic plasticity and possible cryptic speciation have been observed. Morphological identification of adult stages can be problematic in cases of high phenotypic plasticity or cryptic speciation. Additionally, postlarval and juvenile stages often have traits still under development and which lack distinction. A microsatellite DNA multiplex of six markers has been developed for Trematomus newnesi (Van Houdt et al. 2006). This multiplex was tested on five additional trematomid taxa: Pagothenia borchgrevinki, Trematomus bernacchii, Trematomus eulepidotus, Trematomus hansoni and Trematomus scotti. We used these six microsatellite loci to assess the genetic differentiation among species and the resolution power of these loci for individual-based assignment methods. The six species could be well discriminated by conventional methods such as principal component analysis and distance-based methods, and individual Bayesian assignment methods. This marker set can be used for a number of purposes, including the identification of eggs and larval and adult stages. It is also useful for the investigation of recent phylogenetic patterns, as well as the detection of cryptic speciation, which has been suggested for T. bernacchii and T. newnesi but never confirmed with high polymorphic genetic markers. |
| Databáze: | OpenAIRE |
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