Comment on "Hexapod Origins: Monophyletic or Paraphyletic?"

@article{Delsuc2003CommentO,
  title={Comment on "Hexapod Origins: Monophyletic or Paraphyletic?"},
  author={Fr{\'e}d{\'e}ric Delsuc and Matthew J. Phillips and David Penny},
  journal={Science},
  year={2003},
  volume={301},
  pages={1482 - 1482}
}
Nardi et al. ( [1][1] ) suggested, rather cautiously, that hexapods (insects plus collembolans in their data set) might be a diphyletic rather than a monophyletic group. According to their interpretation, collembolans evolved separately from other insects and emerged before crustaceans. This 

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References

SHOWING 1-10 OF 13 REFERENCES

Wingless Insects and Plucked Chickens

TLDR
Enter [Nardi and colleagues], whose mitochondrial genome sequence data throw "a naked fowl" into the midst of consensus, as [Thomas][2] describes in an accompanying Perspective.

Arthropod phylogeny based on eight molecular loci and morphology

TLDR
The optimal ‘total evidence’ cladogram supports the crustacean–hexapod clade, recognizes pycnogonids as sister to other euarthropods, and indicates monophyly of Myriapoda and Mandibulata.

Four new mitochondrial genomes and the increased stability of evolutionary trees of mammals from improved taxon sampling.

TLDR
The evolutionary tree for mammals is expected to be resolved quickly, and the stability of trees from independent data sets, as detected from a triplet Markov analysis.

Outgroup misplacement and phylogenetic inaccuracy under a molecular clock--a simulation study.

TLDR
A simulation study of the phylogenetic methods UPGMA, neighbor joining, maximum parsimony, and maximum likelihood for a five-taxon tree under a molecular clock identified another region of the parameter space where, although consistent for a given method, some incorrect trees were each selected with up to twice the frequency of the correct tree for sequences of bounded length.

Should we use model-based methods for phylogenetic inference when we know that assumptions about among-site rate variation and nucleotide substitution pattern are violated?

TLDR
Results suggest that application of increasingly general and complex models would sometimes lead to decreased efŽciency, despite the fact that themore complex models almost always provide signiŽcantly better access to real data than the simpler models.

MrBayes 3: Bayesian phylogenetic inference under mixed models

TLDR
MrBayes 3 performs Bayesian phylogenetic analysis combining information from different data partitions or subsets evolving under different stochastic evolutionary models to analyze heterogeneous data sets and explore a wide variety of structured models mixing partition-unique and shared parameters.

Increased taxon sampling greatly reduces phylogenetic error.

TLDR
The measurement of phylogenetic error across a wide range of taxon sample sizes is considered, and it is concluded that the expected error based on randomly selecting trees must be considered in evaluating error in studies of the effects ofTaxon sampling.

Compositional Bias May Affect Both DNA-Based and Protein-Based Phylogenetic Reconstructions

TLDR
It is reported that DNA bias not only may affect phylogenetic analysis based on DNA sequences, but also drives a protein bias which may affect analyses based on protein sequences, and that even protein-based phylogenetic trees may be misleading.

MODELTEST: testing the model of DNA substitution

SUMMARY The program MODELTEST uses log likelihood scores to establish the model of DNA evolution that best fits the data. AVAILABILITY The MODELTEST package, including the source code and some