Showing papers in "Molecular Phylogenetics and Evolution in 2001"

TL;DR: Molecular reconstructions support paleontological evidence that species of the genus Myotis had a burst of diversification during the late Miocene-early Pliocene epoch.

TL;DR: Interrelationships of the tapeworms were examined by use of small (SSU) and large (LSU) subunit ribosomal DNA sequences and morphological characters, finding the LSU data to be more informative than the SSU data and more consistent with inferences from morphology, although nodal support was generally weak for most basal nodes.

TL;DR: The phylogenetic analysis suggested that Distoechodon hupeinensis might be transferred to the genus Xenocypris, the taxonomic status of the genus Plagiognathops might be preserved, and species of Xenocy Prinae and Plagiagnathops form a monophyletic group that is sister toThe genus DistoeChodon and Pseudobrama.

TL;DR: A new family, separate from the Glomaceae, is required to accommodate this group of organisms, initially named Diversisporaceae fam.

TL;DR: A phylogeny of 54 of the 80 known Bicyclus species is presented based on the combined 3000-bp sequences of two mitochondrial genes, cytochrome oxidase I and II, and the nuclear gene, elongation factor 1alpha, and most phylogenetic signal for the analysis comes from silent substitutions at the third position.

TL;DR: Four gene regions were sequenced for 30 species of jumping spiders to investigate their molecular phylogeny and evolution, and a group of elongate-bodied genera are placed as basal among the dendryphantines, and previously proposed relationships of Poultonella, Paraphidippus, and Sassacus vitis are confirmed.

TL;DR: The phylogenetic relationships among 23 Hystricognathi species are reconstructed using a nuclear marker, and it is suggested that Chinchillidae and Dinomyidae are sister clades, Abrocomidae is a true Octodontoidea, and Capromyidae, Echimyidae, and Myocastoridae cluster together.

TL;DR: The origin of the rare allotetraploid Silene aegaea was inferred from plastid rps16 intron sequences, homoeologous copies of nuclear ribosomal internal transcribed spacer sequences, and an intron from the nuclear gene coding for the second largest subunit of RNA polymerase II (RPB2).

TL;DR: Tests using four-taxon subsamples suggest that these lineages diverged nearly simultaneously in the Late Miocene, approximately 6 to 8 million years ago, when extensive uplifting of Anatolia occurred in response to the Arabian collision.

TL;DR: A sensitivity analysis demonstrated that equal weighting of indels, transitions, transversions, and morphological change provided the most congruent solution between the molecular and the morphological data partitions.

TL;DR: The present study provides analyses of near-complete DNA sequences for Tetraopes and relatives that are used to establish a molecular clock and temporal framework for TetRAopes evolution with their milkweed hosts.

TL;DR: This work reexamined the interrelationships of the five major, basal teleostean lineages using mitogenomic data for which five alternative phylogenetic hypotheses have been previously proposed on the basis of both morphological and molecular analyses and confidently rejected all of these hypotheses with high statistical significance.

TL;DR: The phylogenetic relationships among 26 species of the subgenus Luciobarbus were examined through comparison of the complete sequence of the mitochondrial genes ATPase 6 and 8 and cytochrome b, indicating a closer relationship among species inhabiting Caucasian, Greek, and North African areas than between the latter and those of the Iberian region.

TL;DR: ITS sequence data are appropriate for studies of relationships within the different species groups and less so for recovery of more ancient speciations within Heteroderidae.

TL;DR: Phylogenetic trees support an old divergence between South American and North-Central American Triatomini and query the validity of some genera and the very low sequence variation between species of the phyllosoma complex suggests that subspecific ranking would be more appropriate.

TL;DR: The hypothesis that the contrasting phylogenetic histories drawn from Quercus using ITS data are not strictly related to technical differences between laboratories, but that they have rather been generated from the analysis of paralogous sequences, best reconciles the available data.

TL;DR: It is found that functional conservation of amino acids occurs for the same regions as those found in vertebrates with the exception of Mallophaga (lice), and the total evidence tree casts doubt on the traditional taxonomy of the group.

TL;DR: Results provide support for the hypotheses that leeches and branchiobdellidans are sister groups, that acanthobdella peledina are sister to them, and that together with the family Lumbriculidae they all constitute a clade within Oligochaeta.

TL;DR: Evaluation of the reported findings indicates that the CMP-sialic hydroxylase mutation is the only one that has so far been shown to result in a global biochemical and structural difference between humans and great apes.

TL;DR: The DNA of this type of mobile elements is evolving faster than the DNA of other markers in this clonal lineage, and two geographical distant groups have evolved in agreement with polymorphisms based on IRAP markers anchored to at least, two different Copia-like retrotransposon sequences.

TL;DR: Analysis of sequences from a 3.5-kb region of the nuclear ribosomal 28S DNA gene spanning divergent domains D2-D10 supports the hypothesis, based on fossil, biogeographic, and behavioral evidence, that treehoppers (Aetalionidae and Membracidae) are derived from leafhopper (Cicadellidae).

TL;DR: The direct approach to detection and taxonomic placement of endophytic fungi within host tissue without the need for conventional in vitro culturing is discussed.

TL;DR: A molecular investigation of the plant partners' phylogeny of the Macaranga-Crematogaster system suggests multiple rather than a single evolutionary origin of myrmecophytism, at least one reversal from obligate myrmicine genus Crem atogaster to nonmyrmecoptera, and one loss of mutualistic specifity.

TL;DR: This study has demonstrated that both AFLP and double-primer fluorescent ISSR have a great potential for generating a large number of informative characters for phylogenetic analysis of closely related species, especially when ITS diversity is insufficient.

TL;DR: Results obtained revealed a faster rate of nucleotide substitutions in the early primate lineage to the anthropoid (platyrrhine/catarrhine) ancestor than from that ancestor to the present.

TL;DR: The mtDNA-based phylogeny for the genus Cobitis provides the first formal hypothesis for the group and permits a phylogenetic-based assessment of the morphological transitions demonstrated by Canestrini's scale, confirming the monophyly of the genus and indicating that European Cobitis comprise six evolutionarily independent lineages.

TL;DR: The first molecular phylogenetic analysis of the phylum Ctenophora, by use of 18S ribosomal RNA sequences from most of the major taxa, suggests that the ctenophores form a distinct monophyletic group that is most closely related to the cnidarians.

TL;DR: The authors' data show that the molecular distances among the four gibbon subgenera are in the same range as those between Homo and Pan, or even higher, and it is proposed to raise all four gibbonsSubgenera to genus rank.

TL;DR: Evidence is provided in support of the hypothesis that lice have speciated in situ on the host in response to niche specialization and that this has given rise to convergent morphologies in the lice of different host groups which share similar ecological niches.

TL;DR: To investigate phylogenetic and biogeographic relationships of the genus with emphasis on L. sandwicense, the coding region of matK, the two intergenic spacers trnT (UGU)-trnL (UAA) and trnF (GAA), and the trnL intron of chloroplast DNA (cpDNA) were sequenced.