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Degenerative expansion of a young supergene

View ORCID ProfileEckart Stolle, View ORCID ProfileRodrigo Pracana, Philip Howard, Carolina I. Paris, Susan J. Brown, Claudia Castillo-Carrillo, Stephen J. Rossiter, View ORCID ProfileYannick Wurm
doi: https://doi.org/10.1101/326645
Eckart Stolle
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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  • ORCID record for Eckart Stolle
  • For correspondence: y.wurm@qmul.ac.uk eckart.stolle@zoologie.uni-halle.de
Rodrigo Pracana
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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  • ORCID record for Rodrigo Pracana
Philip Howard
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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Carolina I. Paris
3Departamento Ecología, Genética y Evolucón, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria Pabellón 2, C1428EHA, Buenos Aires, Argentina
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Susan J. Brown
4Division of Biology, Ackert Hall, Kansas State University, Manhattan KS USA 66506
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Claudia Castillo-Carrillo
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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Stephen J. Rossiter
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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Yannick Wurm
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, Fogg Building, London, E14NS, UK
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  • For correspondence: y.wurm@qmul.ac.uk eckart.stolle@zoologie.uni-halle.de
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Abstract

Suppressed recombination ultimately leads to gene loss, as demonstrated by the depauperate Y chromosomes of long-established XY pairs. To understand the shorter term effects, we used high-resolution optical mapping and k-mer distribution analysis on a young non-recombining region of fire ant social chromosomes. Instead of shrinking, the region has increased in length by more than 30%. This demonstrates that degenerative expansion can occur during the early evolution of non-recombining regions.

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Posted May 20, 2018.
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Degenerative expansion of a young supergene
Eckart Stolle, Rodrigo Pracana, Philip Howard, Carolina I. Paris, Susan J. Brown, Claudia Castillo-Carrillo, Stephen J. Rossiter, Yannick Wurm
bioRxiv 326645; doi: https://doi.org/10.1101/326645
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Degenerative expansion of a young supergene
Eckart Stolle, Rodrigo Pracana, Philip Howard, Carolina I. Paris, Susan J. Brown, Claudia Castillo-Carrillo, Stephen J. Rossiter, Yannick Wurm
bioRxiv 326645; doi: https://doi.org/10.1101/326645

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