Convergent evolution of complex genomic rearrangements in two fungal meiotic drive elements

Jesper Svedberg, Sara Hosseini, Jun Chen, Aaron A. Vogan, Iva Mozgova, Lars Hennig, Pennapa Manitchotpisit, Anna Abusharekh, Thomas M. Hammond, Martin Lascoux and Hanna Johannesson ()
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Jesper Svedberg: Uppsala University
Sara Hosseini: Uppsala University
Jun Chen: Uppsala University
Aaron A. Vogan: Uppsala University
Iva Mozgova: Swedish University of Agricultural Sciences
Lars Hennig: Swedish University of Agricultural Sciences
Pennapa Manitchotpisit: Illinois State University
Anna Abusharekh: Illinois State University
Thomas M. Hammond: Illinois State University
Martin Lascoux: Uppsala University
Hanna Johannesson: Uppsala University

Nature Communications, 2018, vol. 9, issue 1, 1-13

Abstract: Abstract Meiotic drive is widespread in nature. The conflict it generates is expected to be an important motor for evolutionary change and innovation. In this study, we investigated the genomic consequences of two large multi-gene meiotic drive elements, Sk-2 and Sk-3, found in the filamentous ascomycete Neurospora intermedia. Using long-read sequencing, we generated the first complete and well-annotated genome assemblies of large, highly diverged, non-recombining regions associated with meiotic drive elements. Phylogenetic analysis shows that, even though Sk-2 and Sk-3 are located in the same chromosomal region, they do not form sister clades, suggesting independent origins or at least a long evolutionary separation. We conclude that they have in a convergent manner accumulated similar patterns of tandem inversions and dense repeat clusters, presumably in response to similar needs to create linkage between genes causing drive and resistance.

Date: 2018
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DOI: 10.1038/s41467-018-06562-x

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