Genome structures resolve the early diversification of teleost fishes

Media type: E-Article

Title: Genome structures resolve the early diversification of teleost fishes

Contributor: Parey, Elise; Louis, Alexandra; Montfort, Jerome; Bouchez, Olivier; Roques, Céline; Iampietro, Carole; Lluch, Jerome; Castinel, Adrien; Donnadieu, Cécile; Desvignes, Thomas; Floi Bucao, Christabel; Jouanno, Elodie; Wen, Ming; Mejri, Sahar; Dirks, Ron; Jansen, Hans; Henkel, Christiaan; Chen, Wei-Jen; Zahm, Margot; Cabau, Cédric; Klopp, Christophe; Thompson, Andrew W.; Robinson-Rechavi, Marc; Braasch, Ingo; [...]

imprint: American Association for the Advancement of Science (AAAS), 2023

Language: English

DOI: 10.1126/science.abq4257

ISSN: 0036-8075; 1095-9203

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Footnote:

Description: 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.

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