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Genome assembly of the polyclad flatworm Prostheceraeus crozieri

Leite, Daniel J; Piovani, Laura; Telford, Maximilian J; (2022) Genome assembly of the polyclad flatworm Prostheceraeus crozieri. Genome Biology and Evolution , 14 (9) , Article evac133. 10.1093/gbe/evac133. Green open access

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Abstract

Polyclad flatworms are widely thought to be one of the least derived of the flatworm classes and, as such, are well placed to investigate evolutionary and developmental features such as spiral cleavage and larval diversification lost in other platyhelminths. Prostheceraeus crozieri, formerly Maritigrella crozieri, is an emerging model polyclad flatworm that already has some useful transcriptome data but, to date, no sequenced genome. We have used high molecular weight DNA extraction and long read PacBio sequencing to assemble the highly repetitive (67.9%) P. crozieri genome (2.07 Gb). We have annotated 43,325 genes, with 89.7% BUSCO 26 completeness. Perhaps reflecting its large genome, introns were considerably larger than other free-living flatworms, but evidence of abundant transposable elements suggests genome expansion has been principally via transposable elements activity. This genome resource will be of great use for future developmental and phylogenomic research.

Type: Article
Title: Genome assembly of the polyclad flatworm Prostheceraeus crozieri
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/gbe/evac133
Publisher version: https://doi.org/10.1093/gbe/evac133
Language: English
Additional information: © The Author(s) 2022. Published by Oxford University Press on behalf of Society for Molecular Biology and Evolution. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: Tiger flatworm, Prostheceraeus crozieri, polyclad, homeobox
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
URI: https://discovery.ucl.ac.uk/id/eprint/10155235
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