Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Genetic uniformity and long-distance clonal dispersal in the invasive androgenetic Corbicula clams
Pigneur, L.-M.; Etoundi, E; Aldridge, C; Marescaux, J.; Yasuda, N; Van Doninck, K. (2014). Genetic uniformity and long-distance clonal dispersal in the invasive androgenetic Corbicula clams. Mol. Ecol. 23(20): 5102-5116. dx.doi.org/10.1111/mec.12912
In: Molecular Ecology. Blackwell: Oxford. ISSN 0962-1083; e-ISSN 1365-294X
|  |
| Trefwoorden |
Corbicula Megerle von Mühlfeld, 1811 [WoRMS]
Marien/Kust |
| Author keywords |
androgenesis; invasive species; phylogenetics; phylogeography;reproductive strategies |
| Auteurs | | Top |
- Pigneur, L.-M.
- Etoundi, E
- Aldridge, C
|
- Marescaux, J.
- Yasuda, N
- Van Doninck, K.
|
|
| Abstract |
The clam genus Corbicula is an interesting model system to study the evolution of reproductive modes as it includes both sexual and asexual (androgenetic) lineages. While the sexual populations are restricted to the native Asian areas, the androgenetic lineages are widely distributed being also found in America and Europe where they form a major aquatic invasive pest. We investigated the genetic diversity of native and invasive Corbicula populations through a worldwide sampling. The use of mitochondrial and nuclear (microsatellite) markers revealed an extremely low diversity in the invasive populations with only four, undiversified, genetic lineages distributed across Europe and America. On the contrary, in the native populations, both sexual and androgenetic lineages exhibited much higher genetic diversity. Remarkably, the most abundant and widely distributed invasive forms, the so-called form A and form R found in America and Europe respectively, are fixed for the same single COI (cytochrome c oxydase subunit I) haplotype and same multilocus genotype. This suggests that form R, observed in Europe since the 1980s, derived directly from form A found in America since the 1920s. In addition, this form shares alleles with some Japanese populations, indicating a Japanese origin for this invasive lineage. Finally, our study suggests that few androgenetic Corbicula individuals successfully invaded the non-native range and then dispersed clonally. This is one striking case of genetic paradox raising the issue of invasive and evolutionary success of genetically undiversified populations. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
