Phylogenetic Relationships Among the Species of Aegla (Anomura: Aeglidae) Freshwater Crabs From Chile

Pérez‐Losada, Marcos; Jara, Carlos G.; Bond-Buckup, Georginam; Crandall, Keith A.

doi:10.1651/0278-0372(2002)022[0304:pratso]2.0.co;2

Cited by 24 publications

(19 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finally, in our discussion, we explore levels of sequence divergence between our focal species and other freshwater taxa that occupy some of the same drainages investigated in the present study. To make these comparisons with freshwater crabs of the genus Aegla, we secured published mitochondrial (mt)DNA data directly from M. Perez-Losada (Pérez-Losada et al, 2002). We used crab data from the genes COI and COII because these typically have closer substitution rates to cyt b than do other mitochondrial ribosomal genes that were available.…”

Section: Phylogenetic Analysis Of Dna Sequence Datamentioning

confidence: 99%

“…Such levels of divergence suggest long isolation between most percichthyid populations within these rivers, which is a pattern similar to those found in T. areolatus. The only other aquatic group examined genetically across Chile is the freshwater crabs of the genus Aegla (Pérez-Losada et al, 2002). Most of these species are restricted to single river basins, with some basins having up to three species present.…”

Section: Comparative Phylogeographymentioning

confidence: 99%

See 1 more Smart Citation

Impact of ocean barriers, topography, and glaciation on the phylogeography of the catfish Trichomycterus areolatus (Teleostei: Trichomycteridae) in Chile

Unmack

Bennin

Habit

et al. 2009

Biological Journal of the Linnean Society

View full text Add to dashboard Cite

We examined the role of several earth history events on the phylogeographic distribution of the catfish Trichomycterus areolatus in Chile using the cytochrome b gene. We explored three biogeographic hypotheses: that sea level changes have resulted in the isolation of populations by drainages; that glaciation has impacted genetic diversity; and that ichthyological subprovince boundaries correspond to phylogeographic breaks in our focal species. We found seven well-supported clades within T. areolatus with high levels of genetic divergence. The strongest signal in our data was for an important role of sea level changes structuring populations. Five of the seven clades mapped cleanly to the geographic landscape and breaks corresponded closely to areas of narrowest continental shelf. In addition, few haplotypes were shared between rivers within clades, suggesting that only limited local movement of individuals has occurred. There was no relationship between the levels of genetic diversity and the proportion of individual drainages covered by glaciers during the last glacial maximum. Two phylogeographic breaks within T. areolatus did match the two previously identified faunal boundaries, but we found three additional breaks, which suggests that faunal breaks have only limited utility in explaining phylogeographic patterns. These results imply that the narrow continental shelf coupled with sea level changes had a strong influence on the obligate freshwater fishes in Chile.

show abstract

Section: Phylogenetic Analysis Of Dna Sequence Datamentioning

confidence: 99%

Section: Comparative Phylogeographymentioning

confidence: 99%

Impact of ocean barriers, topography, and glaciation on the phylogeography of the catfish Trichomycterus areolatus (Teleostei: Trichomycteridae) in Chile

Unmack

Bennin

Habit

et al. 2009

Biological Journal of the Linnean Society

View full text Add to dashboard Cite

show abstract

“…Because aquatic diversity in Chile is relatively depauperate [17,18] examination of a few widespread can provide important insights into the evolutionary history of the region. For example, a phylogenetic study of freshwater crabs in the genus Aegla (Aeglidae: Anomura; [19,20] and a phylogeographic study of the freshwater catfish ( Trichomycterus areolatus : Trichomycteridae: Teleostei; [13] discovered similar levels of model-corrected genetic distance of mitochondrial lineages between Aegla (cytochrome oxidase I and II genes: 1598 base pairs) and Trichomycterus (cytochrome b: 1137 base pairs). For example, genetic distance between two rivers, Río Maipo and Río Maule, are 2.6 - 2.8% and 2.0 - 2.8% in Aegla laevis and Trichomycterus areolatus respectively.…”

Section: Introductionmentioning

confidence: 99%

Different processes lead to similar patterns: a test of codivergence and the role of sea level and climate changes in shaping a southern temperate freshwater assemblage

et al. 2011

Self Cite

View full text Add to dashboard Cite

BackgroundUnderstanding how freshwater assemblages have been formed and maintained is a fundamental goal in evolutionary and ecological disciplines. Here we use a historical approach to test the hypothesis of codivergence in three clades of the Chilean freshwater species assemblage. Molecular studies of freshwater crabs (Aegla: Aeglidae: Anomura) and catfish (Trichomycterus arealatus: Trichomycteridae: Teleostei) exhibited similar levels of genetic divergences of mitochondrial lineages between species of crabs and phylogroups of the catfish, suggesting a shared evolutionary history among the three clades in this species assemblage.ResultsA phylogeny was constructed for Trichomycterus areolatus under the following best-fit molecular models of evolution GTR + I + R, HKY + I, and HKY for cytochrome b, growth hormone, and rag 1 respectively. A GTR + I + R model provided the best fit for both 28S and mitochondrial loci and was used to construct both Aegla phylogenies. Three different diversification models were observed and the three groups arose during different time periods, from 2.25 to 5.05 million years ago (Ma). Cladogenesis within Trichomycterus areolatus was initiated roughly 2.25 Ma (Late Pliocene - Early Pleistocene) some 1.7 - 2.8 million years after the basal divergences observed in both Aegla clades. These results reject the hypothesis of codivergence.ConclusionsThe similar genetic distances between terminal sister-lineages observed in these select taxa from the freshwater Chilean species assemblage were formed by different processes occurring over the last ~5.0 Ma. Dramatic changes in historic sea levels documented in the region appear to have independently shaped the evolutionary history of each group. Our study illustrates the important role that history plays in shaping a species assemblage and argues against assuming similar patterns equal a shared evolutionary history.

show abstract

“…They are the only freshwater anomurans, and currently there is an active discussion about their phylogenetic position (Martin and Felgenhauer, 1986;D'Amato and Corach, 1997;Pérez Losada et al, 2002a;Tudge and Scheltinga, 2002;Tudge, 2003).…”

mentioning

confidence: 99%

“…The genus contains approximately 70 species and subspecies spread out over Chile, Brazil, Argentina, Uruguay, Paraguay, and Bolivia (Bond Buckup and Buckup, 1994;Pérez Losada et al, 2002b) in habitats such as lakes, streams, swamps, and caves. Several studies have been made on aeglid species from Chile, mainly in relation to biogeographical aspects (Jara, 1996;Perez Losada et al, 2002b, for review).…”

mentioning

confidence: 99%

Juvenile Hatching and Maternal Care in Aegla Uruguayana (Anomura, Aeglidae)

Greco

Viau

Lavolpe

et al. 2004

Journal of Crustacean Biology

View full text Add to dashboard Cite

Phylogenetic Relationships Among the Species of Aegla (Anomura: Aeglidae) Freshwater Crabs From Chile

Cited by 24 publications

References 20 publications

Impact of ocean barriers, topography, and glaciation on the phylogeography of the catfish Trichomycterus areolatus (Teleostei: Trichomycteridae) in Chile

Impact of ocean barriers, topography, and glaciation on the phylogeography of the catfish Trichomycterus areolatus (Teleostei: Trichomycteridae) in Chile

Different processes lead to similar patterns: a test of codivergence and the role of sea level and climate changes in shaping a southern temperate freshwater assemblage

Juvenile Hatching and Maternal Care in Aegla Uruguayana (Anomura, Aeglidae)

Contact Info

Product

Resources

About