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Cryptic, extensive and non-random chromosome reorganization revealed by a butterfly chromonome

Jason A Hill, Ramprasad Neethiraj, Pasi Rastas, Nathan Clark, Nathan Morehouse, Maria de la Paz Celorio-Mancera, Jofre Carnicer Cols, Heinrich Dircksen, Camille Meslin, Kristin Sikkink, Maria Vives, Heiko Vogel, Christer Wiklund, Carol L Boggs, Soren Nylin, Christopher Wheat
doi: https://doi.org/10.1101/233700
Jason A Hill
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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  • For correspondence: jasonanthonyhill@gmail.com
Ramprasad Neethiraj
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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Pasi Rastas
Inst of Biotechnology, (DNA Sequencing & Genomics), University of Helsinki, Finland;
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Nathan Clark
Department of Computational and Systems Biology, University of Pittsburgh, USA;
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Nathan Morehouse
Department of Biological Sciences, University of Cincinnati, USA;
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Maria de la Paz Celorio-Mancera
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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Jofre Carnicer Cols
Dept of Evolutionary Biology, Ecology & Environmental Sciences, Univ of Barcelona;
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Heinrich Dircksen
Functional Morphology, Department of Zoology, Stockholm University, Sweden;
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Camille Meslin
Department of Computational and Systems Biology, University of Pittsburgh, USA;
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Kristin Sikkink
Dept. of Ecology, Evolution and Behavior, University of Minnesota, St Paul, USA;
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Maria Vives
Dept of Evolutionary Biology, Ecology & Environmental Sciences, Univ of Barcelona;
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Heiko Vogel
Department of Entomology, Max Planck Institute for Chemical Ecology, Germany;
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Christer Wiklund
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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Carol L Boggs
Department of Biological Sciences, University of South Carolina, Columbia, USA
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Soren Nylin
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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Christopher Wheat
Population Genetics, Department of Zoology, Stockholm University, Sweden;
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Abstract

Taxonomic Orders vary in their degree of chromosomal conservation with some having high rates of chromosome number turnover despite maintaining some core sets of gene order (e.g. Mammalia) and others exhibiting rapid rates of gene-order reshuffling without changing chromosomal count (e.g. Diptera). However few clades exhibit as much conservation as the Lepidoptera where both chromosomal count and gene collinearity (synteny) are very high over the past 140 MY. In contrast, here we report extensive chromosomal rearrangements in the genome of the green-veined white butterfly (Pieris napi, Pieridae, Linnaeus, 1758). This unprecedented reshuffling is cryptic, micro-synteny and chromosome number do not indicate the extensive rearrangement revealed by a chromosome level assembly and high resolution linkage map. Furthermore, the rearrangement blocks themselves appear to be non-random, as they are significantly enriched for clustered groups of functionally annotated genes revealing that the evolutionary dynamics acting on Lepidopteran genome structure are more complex then previously envisioned.

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Posted March 02, 2018.
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Cryptic, extensive and non-random chromosome reorganization revealed by a butterfly chromonome
Jason A Hill, Ramprasad Neethiraj, Pasi Rastas, Nathan Clark, Nathan Morehouse, Maria de la Paz Celorio-Mancera, Jofre Carnicer Cols, Heinrich Dircksen, Camille Meslin, Kristin Sikkink, Maria Vives, Heiko Vogel, Christer Wiklund, Carol L Boggs, Soren Nylin, Christopher Wheat
bioRxiv 233700; doi: https://doi.org/10.1101/233700
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Cryptic, extensive and non-random chromosome reorganization revealed by a butterfly chromonome
Jason A Hill, Ramprasad Neethiraj, Pasi Rastas, Nathan Clark, Nathan Morehouse, Maria de la Paz Celorio-Mancera, Jofre Carnicer Cols, Heinrich Dircksen, Camille Meslin, Kristin Sikkink, Maria Vives, Heiko Vogel, Christer Wiklund, Carol L Boggs, Soren Nylin, Christopher Wheat
bioRxiv 233700; doi: https://doi.org/10.1101/233700

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