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The soursop genome and comparative genomics of basal angiosperms provide new insights on evolutionary incongruence

View ORCID ProfileJoeri S. Strijk, Damien D. Hinsinger, View ORCID ProfileMareike M. Roeder, View ORCID ProfileLars W. Chatrou, View ORCID ProfileThomas L. P. Couvreur, View ORCID ProfileRoy H. J. Erkens, View ORCID ProfileHervé Sauquet, View ORCID ProfileMichael D. Pirie, Daniel C. Thomas, Kunfang Cao
doi: https://doi.org/10.1101/639153
Joeri S. Strijk
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
2Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, DaXueDongLu 100, Nanning, Guangxi, China
3Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, PO Box 959, 06000 Luang Prabang, Laos
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  • For correspondence: jsstrijk@hotmail.com
Damien D. Hinsinger
2Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, DaXueDongLu 100, Nanning, Guangxi, China
3Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, PO Box 959, 06000 Luang Prabang, Laos
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Mareike M. Roeder
4Community Ecology and Conservation Group, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan, PR China
5Aueninstitut, Institute for Geography and Geoecology, Karlsruhe Institute of Technology, Josefstraße 1, 76437 Rastatt, Germany
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Lars W. Chatrou
6Ghent University, Systematic and Evolutionary Botany lab, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
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Thomas L. P. Couvreur
7IRD, DIADE, Univ Montpellier, Montpellier, France
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Roy H. J. Erkens
8Maastricht Science Programme, Maastricht University, P.O.Box 616, 6200 MD, Maastricht, The Netherlands
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Hervé Sauquet
9National Herbarium of New South Wales (NSW), Royal Botanic Gardens and Domain Trust, Sydney, Australia
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Michael D. Pirie
10Institute of Organismic and Molecular Evolution, Johannes Gutenberg University of Mainz, Anselm-Franz-von-Bentzelweg 9a, 55099 Mainz, Germany
11University Museum, University of Bergen, Postboks 7800, N-5020 BERGEN
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Daniel C. Thomas
12National Parks Board, Singapore Botanic Gardens, 1 Cluny Road, Singapore, 259569, Singapore
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Kunfang Cao
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
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Abstract

Deep relationships and the sequence of divergence among major lineages of angiosperms (magnoliids, monocots and eudicots) remain ambiguous and differ depending on analytical approaches and datasets used. Complete genomes potentially provide opportunities to resolve these uncertainties, but two recently published magnoliid genomes instead deliver further conflicting signals. To disentangle key angiosperm relationships, we report a high-quality draft genome for the soursop (Annona muricata, Annonaceae). We reconstructed phylogenomic trees and show that the soursop represents a genomic mosaic supporting different histories, with scaffolds almost exclusively supporting single topologies. However, coalescent methods and a majority of genes support magnoliids as sister to monocots and eudicots, where previous whole genome-based studies remained inconclusive. This result is clear and consistent with recent studies using plastomes. The soursop genome highlights the need for more early diverging angiosperm genomes and critical assessment of the suitability of such genomes for inferring evolutionary history.

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Posted May 17, 2019.
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The soursop genome and comparative genomics of basal angiosperms provide new insights on evolutionary incongruence
Joeri S. Strijk, Damien D. Hinsinger, Mareike M. Roeder, Lars W. Chatrou, Thomas L. P. Couvreur, Roy H. J. Erkens, Hervé Sauquet, Michael D. Pirie, Daniel C. Thomas, Kunfang Cao
bioRxiv 639153; doi: https://doi.org/10.1101/639153
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The soursop genome and comparative genomics of basal angiosperms provide new insights on evolutionary incongruence
Joeri S. Strijk, Damien D. Hinsinger, Mareike M. Roeder, Lars W. Chatrou, Thomas L. P. Couvreur, Roy H. J. Erkens, Hervé Sauquet, Michael D. Pirie, Daniel C. Thomas, Kunfang Cao
bioRxiv 639153; doi: https://doi.org/10.1101/639153

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