Molecular Phylogenetics and Evolution
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Diversification of Ponto-Caspian aquatic fauna: Morphology and molecules retrieve congruent evolutionary relationships in Pontogammarus maeo...
We present a study on the Ponto-Caspian endemic amphipod Pontogammarus maeoticus. We assessed patterns of divergence based on (a) two mitochondrial and one nuclear gene, and (b) a morphometric analysis of 23 morphological traits in 16 populations from South and West Caspian Sea, South Azov Sea and N...
A multi-locus molecular timescale for the origin and diversification of eels (Order: Anguilliformes).
We present a new phylogenetic hypothesis for the Anguilliformes based on five markers (the nuclear loci Early Growth Hormone 3, Myosin Heavy Polypeptide 6 and Recombinase Activating Gene 1, as well as the mitochondrial genes Cytochrome b and Cytochrome Oxidase I). Our sampling spans 148 species and...
Phylogeny and systematics of deep-sea sea pens (Anthozoa: Octocorallia: Pennatulacea).
Molecular methods have been used for the first time to determine the phylogeny of families, genera and species within the Pennatulacea (sea pens). Variation in ND2 and mtMutS mitochondrial protein-coding genes proved adequate to resolve phylogenetic relationships among pennatulacean families. The ge...
Molecular phylogeny of Koenigia L. (Polygonaceae: Persicarieae): Implications for classification, character evolution and biogeography.
We further propose that the genus Koenigia sensu lato be circumscribed to include five species. Ancestral state reconstruction showed that the pollen apertures likely evolved in parallel in the Aconogonon-Koenigia-Bistorta clade and Persicaria clade and that tricolpate pollen is most likely to be th...
A new phylogeny of tetraodontiform fishes (Tetraodontiformes, Acanthomorpha) based on 22 loci.
We do not currently have a consensus on the phylogenetic relationships among the major tetraodontiform lineages, with different morphological and molecular datasets all supporting contrasting relationships. In this paper we present the results of the analysis of tetraodontiform interrelationships ba...
Adaptive evolution of Mediterranean pines.
We identified two genes (involved in pines' defense and stress responses) that have likely played a role in the adaptation of Mediterranean pines to their environment. Moreover, few life-history traits showed historical or evolutionary adaptive convergence in Mediterranean lineages, while patterns o...
Genetic diversity, phylogeny and evolution of alkaloid sequestering in Cuban miniaturized frogs of the Eleutherodactylus limbatus group.
We here assess their range-wide phylogeography using DNA sequences of the mitochondrial cytochrome b and the nuclear Rag-1 gene. We found E. etheridgei, E. cubanus, and E. orientalis to be genetically highly distinct, with uncorrected pair-wise distances >12% in the cytochrome b gene and >5% in the...
Phylogenetic- and genome-derived insight into the evolution of N-glycosylation in Archaea.
N-glycosylation, the covalent attachment of oligosaccharides to target protein Asn residues, is a post-translational modification that occurs in all three domains of life. In Archaea, the N-linked glycans that decorate experimentally characterized glycoproteins reveal a diversity in composition and...
Multigene-based analyses on evolutionary phylogeny of two controversial ciliate orders: Pleuronematida and Loxocephalida (Protista, Ciliopho...
We characterized 37 sequences (SSU-rDNA, ITS-5.8S and LSU-rDNA) from 21 taxonomically controversial members of these orders. Phylogenetic trees constructed to assess the inter- and intra-generic relationships of pleuronematids and loxocephalids reveal the following: (1) the order Loxocephalida and i...
Molecular systematics of the wolf spider genus Lycosa (Araneae: Lycosidae) in the Western Mediterranean Basin.
We present the first molecular phylogeny of the wolf spider genus Lycosa Latreille, 1804 in the Western Mediterranean Basin. With a wide geographic sampling comprising 90 localities and including more than 180 individuals, we conducted species delimitation analyses with a Maximum Likelihood approach...