Phylogenetic relationships of the southern African freshwater crab fauna (Decapoda: Potamonautidae: Potamonautes) derived from multiple data sets reveal biogeographic patterning

Daniels, Savel R.; Stewart, Barbara A.; Gouws, Gavin; Cunningham, Michael J.; Matthee, Conrad A.

doi:10.1016/s1055-7903(02)00281-6

Cited by 78 publications

(65 citation statements)

References 56 publications

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“…The sequence data were sufficiently long (592 bp) and could resolve the phylogeny at the species level with high divergence between species. There are reports of sequence divergence for 12SrRNA in the range of 0.65-43.4% in freshwater crabs of Potamonautidae (Daniels et al, 2002). A low divergence rate for nuclear 18SrRNA was observed in concordance with the moderate value among species (5.8-7.2%) in decapod suborder Pleocyemata (Toon et al, 2009).…”

Section: Sequence Divergence For Various Markersmentioning

confidence: 62%

Molecular phylogeny of commercially important lobster species from Indian coast inferred from mitochondrial and nuclear DNA sequences

Jeena

Gopalakrishnan

Radhakrishnan

et al. 2015

Mitochondrial DNA Part A

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Lobsters constitute low-volume high-value crustacean fishery resource along Indian coast. For the conservation and management of this declining resource, accurate identification of species and larvae is essential. The objectives of this work were to generate species-specific molecular signatures of 11 commercially important species of lobsters of families Palinuridae and Scyllaridae and to reconstruct a phylogeny to clarify the evolutionary relationships among genera and species included in this study. Partial sequences were generated for all the candidate species from sampling sites along the Indian coast using markers like Cytochrome oxidase I (COI), 16SrRNA, 12SrRNA, and 18SrRNA genes, and analyzed. The genetic identities of widely distributed Thenus species along the Indian coast to be Thenus unimaculatus and the sub-species of Panulirus homarus to be P. homarus homarus were confirmed. Phylogeny reconstruction using the individual gene and concatenated mtDNA data set were carried out. The overall results suggested independent monophyly of Scyllaridae and Stridentes of Palinuridae. The interspecific divergence was found to be highest for the 12SrRNA compared with other genes. Significant incongruence between mtDNA and nuclear 18SrRNA gene tree topologies was observed. The results hinted an earlier origin for Palinuridae compared with Scyllaridae. The DNA sequence data generated from this study will aid in the correct identification of lobster larvae and will find application in research related to larval transport and distribution.

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Section: Sequence Divergence For Various Markersmentioning

confidence: 62%

Molecular phylogeny of commercially important lobster species from Indian coast inferred from mitochondrial and nuclear DNA sequences

Jeena

Gopalakrishnan

Radhakrishnan

et al. 2015

Mitochondrial DNA Part A

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“…Phylogenetic trees were rooted using Potamonautes warreni and Potamonautes unispinus as outgroups (Daniels et al, 2002(Daniels et al, , 2006a. Daniels et al (2002) demonstrated that these two species formed a well-supported monophyletic group with other large-bodied freshwater crab species, including P. perlatus s.l.…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae:Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages

Phiri

Daniels

2014

Zool J Linn Soc

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River networks of major drainages can form barriers that shape the phylogeography of freshwater organisms, particularly those with low dispersal capabilities. Freshwater crab species' distributions can be used to examine hydrological patterns to expose historical drainage interconnectivity. We used molecular sequence data (mitochondrial and nuclear DNA) and divergence time estimations to determine the phylogeography of the freshwater crab, Potamonautes perlatus sensu lato, from six drainage systems along the Cape Fold Mountains, South Africa. Two major clades were detected: clade 1 comprised two geographically discrete haploclades occurring in southern flowing drainages, whereas clade 2 included specimens from western flowing drainages. Divergence time estimations suggested a Pleistocene (c. 2.61 Mya) divergence of P. perlatus s.l. The Pleistocene was associated with arid conditions and drainage contractions. However, it is likely that during the mesic conditions of the Pleistocene, P. perlatus s.l. migrated and diverged into contemporary patterns. We conclude that three lineages are nested within P. perlatus s.l., two representing novel species. Potamonautes perlatus sensu stricto is confined to western flowing drainages. The two novel species both occurring in southern flowing drainages are described here: Potamonautes barbarai sp. nov. occurs in the Gamtoos and Gourits Rivers and Potamonautes barnardi sp. nov. in the Breede River.

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“…These three genes provided independent datasets, with different rates of evolution, with which to infer relationships at various taxonomic levels (Crandall et al, 2000;Daniels et al, 2002;Pérez-Losada et al, 2002;Øines & Schram, 2008). Two microlitres of the diluted DNA solution were added to a 50 μl PCR reaction containing the following: 5 μl 10X Taq buffer, 5-8 μl 25 mM MgCl, 8 μl 10 mM dNTPs, 5 μl each of two 10 mM primers, and 0.3 μl of 1.25 units of Taq polymerase (Promega) and ddH 2 O.…”

Section: Dna Extractionmentioning

confidence: 99%

Estimated Molecular Phylogenetic Relationships of Six Siphonostomatoid Families (Copepoda) Symbiotic on Elasmobranchs

Dippenaar

2009

Crustac

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Members of the Siphonostomatoida are associated with either invertebrates or vertebrates. Even though the interfamilial relationships within the Siphonostomatoida are unresolved, it has generally been assumed that those members parasitic on vertebrates form a derived and monophyletic group. Eleven of the families symbiotic on vertebrates have been reported from elasmobranchs. One nuclear genetic marker (18S rDNA) and two partial mitochondrial markers (16S rDNA and COI) were used to estimate the phylogenetic relationship among six families symbiotic on elasmobranchs. The estimated molecular topologies using maximum likelihood, parsimony (unweighted and weighted), and Bayesian analyses are mostly similar. The six families investigated grouped into two major clades, with Kroyeriidae, Caligidae, Pandaridae, and Dichelestiidae in one clade, and Eudactylinidae and Sphyriidae in the other. The molecular topologies are compared with the previous morphological topology and present some support for some of the proposed relationships and alternative hypotheses in the areas of conflict. Valuable information obtained from the study is the indication that the genes used are informative at this level of investigation and can therefore be used in more elaborate future studies. RÉSUMÉLes membres des Siphonostomatoida sont associés soit à des invertébrés, soit à des vertébrés. Même si les relations interfamiliales à l'intérieur des Siphonostomatoida ne sont pas résolues, il est généralement supposé que les membres parasites de vertébrés forment un groupe dérivé et monophylétique. Onze parmi les familles symbiotes de vertébrés ont été observées sur les Elasmobranches. Un marqueur génétique nucléaire (18S rDNA) et deux marqueurs mitochondriaux (16S rDNA et COI) ont été utilisés pour estimer les relations phylogénétiques entre 6 familles symbiotes d'Elasmobranches. Les topologies moléculaires estimées en utilisant les analyses de maximum de vraisemblance, de parcimonie (non pondérée ou pondérée) et l'analyse bayésienne sont assez similaires. Les six familles étudiées se regroupent en deux clades principaux avec les Kroyeriidae, Caligidae, Pandaridae, et Dichelestiidae dans l'un, et les Eudactylinidae et Sphyriidae 1 ) SUSAN M. DIPPENAAR dans l'autre. Les topologies moléculaires ont été comparées avec la topologie morphologique existante et fournissent des arguments pour certaines des relations proposées et des hypothèses alternatives pour les régions montrant des conflits. L'information de valeur obtenue grâce à cette étude indique que les gènes utilisés sont informatifs à ce niveau d'investigation et peuvent donc être utilisés à l'avenir dans des études futures, plus élaborées.

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Phylogenetic relationships of the southern African freshwater crab fauna (Decapoda: Potamonautidae: Potamonautes) derived from multiple data sets reveal biogeographic patterning

Cited by 78 publications

References 56 publications

Molecular phylogeny of commercially important lobster species from Indian coast inferred from mitochondrial and nuclear DNA sequences

Molecular phylogeny of commercially important lobster species from Indian coast inferred from mitochondrial and nuclear DNA sequences

Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae:Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages

Estimated Molecular Phylogenetic Relationships of Six Siphonostomatoid Families (Copepoda) Symbiotic on Elasmobranchs

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