Reduced evolutionary constraint accompanies ongoing radiation in deep-sea anglerfishes
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Colonization of a novel habitat is often followed by phenotypic diversification in the wake of ecological opportunity. However, some habitats should be inherently more constraining than others if the challenges of that environment offer few evolutionary solutions. We examined this push-and-pull on macroevolutionary diversification following habitat transitions in the anglerfishes (Lophiiformes). We present a new phylogeny with unprecedented taxonomic sampling (1,092 loci and ~38% of species), combined with three-dimensional phenotypic data from museum specimens. We used these datasets to examine the tempo and mode of phenotypic diversification. The deep-sea pelagic anglerfishes originated from a benthic ancestor and shortly after experienced rapid lineage diversification rates. This transition incurred shifts towards larger jaws, smaller eyes, and a more laterally compressed body plan. Despite these directional trends, this lineage still evolved high phenotypic disparity in body, skull ..., , , # Reduced evolutionary constraint accompanies ongoing radiation in deep-sea anglerfishes [https://www.nature.com/articles/s41559-024-02586-3](https://www.nature.com/articles/s41559-024-02586-3) Dryad package prepared by Elizabeth Miller on September 25 2024 Contact with questions: [lizmiller2633@gmail.com](mailto:lizmiller2633@gmail.com) All R scripts are designed to work with the R project \"comparative_methods_jan2024.Rproj.\" Open this file first! The R project keeps all folders within a common directory so the scripts can all \"talk\" to each other Description of files: #### SUPPLEMENTARY APPENDICES These appendices are referred to (and described) within the journal article Appendix A1: Additional phylogeny figures (all in single PDF) ``` Figure A1: Maximum likelihood phylogram including all individuals used for quality control (validating species identifications). Figure A2: Maximum likelihood phylogram made using IQ-TREE using set of representative individuals for each speci...
