Topological structures and syntenic conservation in sea anemone genomes.


Journal

Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555

Informations de publication

Date de publication:
13 Dec 2023
Historique:
received: 02 06 2023
accepted: 29 11 2023
medline: 14 12 2023
pubmed: 14 12 2023
entrez: 13 12 2023
Statut: epublish

Résumé

There is currently little information about the evolution of gene clusters, genome architectures and karyotypes in early branching animals. Slowly evolving anthozoan cnidarians can be particularly informative about the evolution of these genome features. Here we report chromosome-level genome assemblies of two related anthozoans, the sea anemones Nematostella vectensis and Scolanthus callimorphus. We find a robust set of 15 chromosomes with a clear one-to-one correspondence between the two species. Both genomes show chromosomal conservation, allowing us to reconstruct ancestral cnidarian and metazoan chromosomal blocks, consisting of at least 19 and 16 ancestral linkage groups, respectively. We show that, in contrast to Bilateria, the Hox and NK clusters of investigated cnidarians are largely disintegrated, despite the presence of staggered hox/gbx expression in Nematostella. This loss of microsynteny conservation may be facilitated by shorter distances between cis-regulatory sequences and their cognate transcriptional start sites. We find no clear evidence for topologically associated domains, suggesting fundamental differences in long-range gene regulation compared to vertebrates. These data suggest that large sets of ancestral metazoan genes have been retained in ancestral linkage groups of some extant lineages; yet, higher order gene regulation with associated 3D architecture may have evolved only after the cnidarian-bilaterian split.

Identifiants

pubmed: 38092765
doi: 10.1038/s41467-023-44080-7
pii: 10.1038/s41467-023-44080-7
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

8270

Subventions

Organisme : Austrian Science Fund (Fonds zur Förderung der Wissenschaftlichen Forschung)
ID : P24858
Organisme : Austrian Science Fund (Fonds zur Förderung der Wissenschaftlichen Forschung)
ID : P21108

Informations de copyright

© 2023. The Author(s).

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Auteurs

Bob Zimmermann (B)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
Research platform SinCeReSt, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Juan D Montenegro (JD)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
Research platform SinCeReSt, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Sofia M C Robb (SMC)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Whitney J Fropf (WJ)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Lukas Weilguny (L)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Shuonan He (S)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Shiyuan Chen (S)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Jessica Lovegrove-Walsh (J)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Eric M Hill (EM)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Cheng-Yi Chen (CY)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.

Katerina Ragkousi (K)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA.
Department of Biology, Amherst College, Amherst, MA, 01002, USA.

Daniela Praher (D)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

David Fredman (D)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Darrin Schultz (D)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Yehu Moran (Y)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
The Alexander Silberman Institute of Life Sciences, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel.

Oleg Simakov (O)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
Research platform SinCeReSt, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Grigory Genikhovich (G)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.

Matthew C Gibson (MC)

Stowers Institute for Medical Research, Kansas City, MO, 64110, USA. mg2@stowers.org.

Ulrich Technau (U)

Department of Neurosciences and Developmental Biology, Faculty of Life Sciences, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria. ulrich.technau@univie.ac.at.
Research platform SinCeReSt, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria. ulrich.technau@univie.ac.at.
Max Perutz laboratories, University of Vienna, Dr. Bohrgasse 5, 1030, Vienna, Austria. ulrich.technau@univie.ac.at.

Classifications MeSH