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Competing phylogenomic models at the animal root

Two deeply sampled genome-scale analyses recover different animal roots, making data composition and evolutionary model part of the claim.

Represented range0–0 Ma
RegionsGlobal living-taxon sequence samples
CladesPorifera · Ctenophora · Metazoa

Claim ledger

topology · contested

One 1,719-gene analysis supports Porifera-sister under site-heterogeneous models, whereas an independently expanded ctenophore sample supports Ctenophora-sister; the animal root remains model- and sampling-sensitive.

claim:event:animal-root-competing-models

References

  1. A large and consistent phylogenomic dataset supports sponges as the sister group to all other animalsSimion, P.; Philippe, H.; Baurain, D.; Jager, M.; Richter, D.J.; Di Franco, A.; Roure, B.; Satoh, N.; Quéinnec, É.; Ereskovsky, A.; et al. · 2017 · DOI 10.1016/j.cub.2017.02.031
  2. Ctenophore relationships and their placement as the sister group to all other animalsWhelan, N.V.; Kocot, K.M.; Moroz, T.P.; Mukherjee, K.; Williams, P.; Paulay, G.; Moroz, L.L.; Halanych, K.M. · 2017 · DOI 10.1038/s41559-017-0331-3
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