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The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics
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Data sets, partitions, and characters: philosophies and procedures for analyzing multiple data sets.

J W Ballard1, M K Thayer, A F Newton

  • 1Department of Zoology, Field Museum, Roosevelt Road at Lake Shore Drive, Chicago, Illinois 60605, USA.

Systematic Biology
|June 18, 2002
PubMed
Summary

We compared four phylogenetic analysis methods for staphylinoid beetles. Compatible evidence (CE) resolved more evolutionary relationships than other methods, offering a robust approach for phylogenetic studies.

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Area of Science:

  • * Systematic Entomology
  • * Molecular Phylogenetics
  • * Biodiversity Studies

Background:

  • * Staphylinoid beetles represent a species-rich superfamily, comparable in diversity to vertebrates.
  • * Accurate phylogenetic analysis is crucial for understanding their evolutionary history.
  • * Integrating diverse data sources (morphology, mitochondrial DNA) presents analytical challenges.

Purpose of the Study:

  • * To compare the efficacy of four distinct phylogenetic analysis methods.
  • * To evaluate the performance of compatible evidence (CE) in resolving phylogenetic relationships.
  • * To identify the most suitable method for generating well-corroborated phylogenetic trees for species-rich insect groups.

Main Methods:

  • * Analysis of three datasets: adult morphology, 12S ribosomal RNA, and cytochrome b mitochondrial DNA.
  • * Comparison of four analytical approaches: Total Evidence (TE), Conditional Data Combination (CDC), Taxonomic Congruence (TC), and Compatible Evidence (CE).
  • * Utilized CE75-75: a 75% bootstrap consensus CDC tree followed by combinable-component consensus.

Main Results:

  • * Compatible Evidence (CE) resolved a higher number of nodes consistent with a conservative hypothesis compared to TE, CDC, and TC.
  • * CE effectively integrates data by establishing a base of resolved nodes and assessing further agreement.
  • * The CE75-75 approach demonstrated superior performance in resolving phylogenetic relationships.

Conclusions:

  • * Compatible Evidence (CE), particularly the CE75-75 method, is recommended for future phylogenetic studies.
  • * CE is effective for generating well-corroborated evolutionary trees.
  • * This approach aids in investigating conflicts between datasets, partitions, and characters in phylogenetic analyses.