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A high-resolution map of small-scale inversions in the gibbon genome

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Item Type:Article
Title:A high-resolution map of small-scale inversions in the gibbon genome
Creators: Mercuri, L. ORCID logoORCID: https://orcid.org/0000-0002-3688-4501, Palmisano, D., L'Abbate, A. ORCID logoORCID: https://orcid.org/0000-0002-5995-2001, D'Addabbo, P. ORCID logoORCID: https://orcid.org/0000-0003-3325-4931, Montinaro, F. ORCID logoORCID: https://orcid.org/0000-0002-4506-963X, Catacchio, C.R. ORCID logoORCID: https://orcid.org/0000-0002-2166-723X, Hasenfeld, P. ORCID logoORCID: https://orcid.org/0000-0003-2319-2482, Ventura, M. ORCID logoORCID: https://orcid.org/0000-0001-7762-8777, Korbel, J.O. ORCID logoORCID: https://orcid.org/0000-0002-2798-3794, Sanders, A.D. ORCID logoORCID: https://orcid.org/0000-0003-3945-0677, Maggiolini, F.A.M. ORCID logoORCID: https://orcid.org/0000-0001-6832-9388 and Antonacci, F. ORCID logoORCID: https://orcid.org/0000-0002-5833-6186
Abstract:Gibbons are the most speciose family of living apes, characterized by a strikingly diverse chromosome number and rapid rate of large-scale rearrangements. Here we performed single-cell template strand sequencing (Strand-seq), molecular cytogenetics and deep in silico analysis of a southern white-cheeked gibbon genome providing the first comprehensive map of 238 previously hidden small-scale inversions. We determined that more than half are gibbon-specific, at least 5-fold higher than shown for other primate lineage specific inversions, with a significant high number of small heterozygous inversions, suggesting that accelerated evolution of inversions may have played a role in the high sympatric diversity of gibbons. Although the precise mechanisms underlying these inversions are not yet understood, it is clear that segmental duplication-mediated NAHR only accounts for a small fraction of events. Several genomic features including gene density and repeat (e.g. LINE1) content might render these regions more break-prone and susceptible to inversion formation. In the attempt to characterize interspecific variation between southern and northern white-cheeked gibbons, we identify several large assembly errors in the current GGSC Nleu3.0/nomLeu3 reference genome comprising over 49 megabases of DNA. Finally, we provide a list of 182 candidate genes potentially involved in gibbons diversification and speciation.
Keywords:Chromosome Inversion, Chromosomes, Genome, Hominidae, Hylobates, Animals, Primates
Source:Genome Research
ISSN:1088-9051
Publisher:Cold Spring Harbor Laboratory Press
Volume:32
Number:10
Page Range:1941-1951
Date:October 2022
Additional Information:This article is distributed exclusively by Cold Spring Harbor Laboratory Press for the first six months after the full-issue publication date (see https://genome.cshlp.org/site/misc/terms.xhtml). After six months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.
Official Publication:https://doi.org/10.1101/gr.276960.122
PubMed:View item in PubMed

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