Species diversity and endemism in the Daphnia of Argentina: a genetic investigation

By S. Adamowicz, Paul D. N. Hebert, M. C. Marinone. 2004

113 citations recorded by the source corpus.

Although the temperate regions of South America are known to have a diverse daphniid fauna, there has been no genetic evaluation of the existing taxonomic system or of the affinities between the North and South American faunas. The present study analyses mitochondrial DNA sequences and allozyme variation to investigate species diversity in 176 Daphnia populations from Argentina. This work established the presence of at least 15 species in Argentina, six of which are either undescribed or are currently misidentified and two of which represent range extensions of North American taxa. Eleven of the Argentine species appear endemic to South America, while the remaining four also occur in North America. In the latter cases, the close genetic similarity between populations from North and South America indicates the recent exchange of propagules between the continents. While biological interactions and habitat availability have undoubtedly contributed to the observed species distributions, chance dispersal has apparently played a dominant role in structuring large-scale biogeographical patterns in this genus and probably in other passively-dispersed organisms. © 2004 The Linnean Society of London, Zoological Journal of the Linnean Society, 2004, 140, 171−205.

Subfields: Ecology, Environmental Chemistry, Genetics

View Paper: https://www.semanticscholar.org/paper/b24eb6e24550193e0a2e5b85e8a7e634b54d223e

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Citations in the corpus

DNA barcodes for Cladocera and Copepoda from Mexico and Guatemala, highlights and new discoveries (2008, background): “These two species do show allozyme (Adamowicz et al. 2004) and morphological differences (Benzie 2005). Daphnia cheraphila was recently described by Hebert & Finston (1996) who included material from Mexico in their original description.”
Daphnia as an emerging model for toxicological genomics (2008, background): “, 2000), South America (Adamowicz et al., 2004) and Australia (Colbourne et al.”
The Cladocera (Crustacea: Branchiopoda) as a relict group (2006, background): “Cladocerans of the subtropical and the temperate South America (western mountain edge and south of 20°S) include one endemic genus (Cactus) and 17 endemic species but recent investigations (Paggi, 1998; Ko inek & Villalobos, 2003; Adamowicz et al., 2004) record about 20 species of Daphnia, ten of Ma”
Biological identifications of mayflies (Ephemeroptera) using DNA barcodes (2005, methodology): “Aquatic taxa such as daphniid and rotifer species, which exhibit marked phenotypic plasticity, have been distinguished reliably using COI (Derry et al. 2003, Adamowicz et al. 2004).”
Global diversity of cladocerans (Cladocera; Crustacea) in freshwater (2007, background): “The increasing use of molecular tools in recent years has and will continue to have a strong impact on our understanding of cladoceran diversity, phylogeny and biogeography (e.g., Adamowicz et al., 2004; Cox & Hebert, 2001; Schwenk et al., 2000; Taylor et al., 2002).”