Decisive data sets in phylogenomics: lessons from studies on the phylogenetic relationships of primarily wingless insects.

ABSTRACT: Phylogenetic relationships of the primarily wingless insects are still considered unresolved. Even the most comprehensive phylogenomic studies that addressed this question did not yield congruent results. To get a grip on these problems, we here analyzed the sources of incongruence in these phylogenomic studies by using an extended transcriptome data set. Our analyses showed that unevenly distributed missing data can be severely misleading by inflating node support despite the absence of phylogenetic signal. In consequence, only decisive data sets should be used which exclusively comprise data blocks containing all taxa whose relationships are addressed. Additionally, we used Four-cluster Likelihood Mapping (FcLM) to measure the degree of congruence among genes of a data set, as a measure

SUBMITTER: Dell'Ampio E 

PROVIDER: S-EPMC3879454 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature