First Evidence of the Existence of Semi-Cryptic Species and of a Phylogeographic Structure in the Gomphonema parvulum (Kutzing) Kutzing Complex (Bacillariophyta)
| Autor: | Agnès Bouchez, Lenaïg Kermarrec, Frédéric Rimet, Jean-François Humbert |
|---|---|
| Přispěvatelé: | Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Asconit Consultants, Biogéochimie et écologie des milieux continentaux (Bioemco), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), ONEMA (French National Agency for Water and Aquatic Environments), ANRT (French National Agency for Research and Technology), Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Species complex Biogeography [SDV]Life Sciences [q-bio] Molecular Sequence Data DIVERSITY Zoology Context (language use) Gomphonema parvulum Biology SYSTEMATICS DNA Ribosomal 010603 evolutionary biology 01 natural sciences Microbiology 03 medical and health sciences Rivers Species Specificity Phylogenetics FRESH-WATER DIATOMS RBCL Clade Phylogeny biogeography 030304 developmental biology Diatoms 0303 health sciences Genetic diversity Sequence Analysis DNA genetic diversity 15. Life on land NITZSCHIA-PUNGENS BACILLARIOPHYCEAE ENDEMISM Europe Phylogeography BARCODING DIATOMS [SDE]Environmental Sciences PATTERNS Pyrosequencing COMMUNITIES morphological and morphometric variability |
| Zdroj: | Protist Protist, 2013, 164 (5), pp.686-705. ⟨10.1016/j.protis.2013.07.005⟩ Protist, Elsevier, 2013, 164 (5), pp.686-705. ⟨10.1016/j.protis.2013.07.005⟩ |
| ISSN: | 1434-4610 |
| Popis: | International audience; The Gomphonema parvulum complex includes species displaying considerable morphological variability and a wide geographical distribution. These characteristics make them difficult to identify by microscopy and raise the question of their taxonomic validity and of the possibility of biogeographical differentiation between them. In this context, we isolated 39 G. parvulum s.l. strains from rivers located in a tropical island (Mayotte) and in mainland Europe. By sequencing three DNA fragments (ITS, rbcL and cox1), four clades (A, B, C and D) were clearly identified, and an additional one (B') was distinguishable only on the rbcL sequence. The main four clades can be separated by their morphological criteria, in particular by the shape of the central area, but some overlaps were found between them. We therefore consider that the G. parvulum complex contains at least four semi-cryptic species corresponding to the four main clades. One of them (A) was found only on Mayotte, while two others (C and D) were found only in Europe. The last clade (B) contained strains from both Europe and Mayotte. Pyrosequencing data confirmed the geographical differences in the distribution of these species, suggesting that the G. parvulum complex displays biogeographic structure. (c) 2013 Elsevier GmbH. All rights reserved. |
| Databáze: | OpenAIRE |
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