Genome structures resolve the early diversification of teleost fishes - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Science Year : 2023

Genome structures resolve the early diversification of teleost fishes

Alexandra Louis

Abstract

Accurate species phylogenies are a prerequisite for all evolutionary research. Teleosts are the largest and most diversified group of extant vertebrates, but relationships among their three oldest extant lineages remain unresolved. On the basis of seven high-quality new genome assemblies in Elopomorpha (tarpons, eels), we revisited the topology of the deepest branches of the teleost phylogeny using independent gene sequence and chromosomal rearrangement phylogenomic approaches. These analyses converged to a single scenario that unambiguously places the Elopomorpha and Osteoglossomorpha (arapaima, elephantnose fish) in a monophyletic sister group to all other teleosts, i.e., the Clupeocephala lineage (zebrafish, medaka). This finding resolves more than 50 years of controversy on the evolutionary relationships of these lineages and highlights the power of combining different levels of genome-wide information to solve complex phylogenies.

Dates and versions

hal-04065839 , version 1 (11-05-2023)

Identifiers

Cite

Elise Parey, Alexandra Louis, Jérôme Montfort, Olivier Bouchez, Céline Lopez-Roques, et al.. Genome structures resolve the early diversification of teleost fishes. Science, 2023, 379 (6632), pp.572-575. ⟨10.1126/science.abq4257⟩. ⟨hal-04065839⟩

Relations

25 View
4 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More