Format

Send to

Choose Destination
Nat Commun. 2018 Oct 12;9(1):4242. doi: 10.1038/s41467-018-06562-x.

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

Author information

1
Department of Organismal Biology, Uppsala University, Norbyvägen 18D, 752 36, Uppsala, Sweden.
2
Department of Ecology and Genetics, Science for Life Laboratory, Uppsala University, Norbyvägen 18D, 752 36, Uppsala, Sweden.
3
Department of Plant Biology and Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO-Box 7080, SE-75007, Uppsala, Sweden.
4
Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Opatovický mlýn, CZ-37981, Třeboň, Czech Republic.
5
School of Biological Sciences, Illinois State University, Normal, IL, 61790, USA.
6
Department of Organismal Biology, Uppsala University, Norbyvägen 18D, 752 36, Uppsala, Sweden. Hanna.Johannesson@ebc.uu.se.

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.

PMID:
30315196
PMCID:
PMC6185902
DOI:
10.1038/s41467-018-06562-x
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center