Abstract:
:Structural rearrangements have long been recognized as an important source of genetic variation, with implications in phenotypic diversity and disease, yet their detailed evolutionary dynamics remain elusive. Here we use long-read sequencing to generate end-to-end genome assemblies for 12 strains representing major subpopulations of the partially domesticated yeast Saccharomyces cerevisiae and its wild relative Saccharomyces paradoxus. These population-level high-quality genomes with comprehensive annotation enable precise definition of chromosomal boundaries between cores and subtelomeres and a high-resolution view of evolutionary genome dynamics. In chromosomal cores, S. paradoxus shows faster accumulation of balanced rearrangements (inversions, reciprocal translocations and transpositions), whereas S. cerevisiae accumulates unbalanced rearrangements (novel insertions, deletions and duplications) more rapidly. In subtelomeres, both species show extensive interchromosomal reshuffling, with a higher tempo in S. cerevisiae. Such striking contrasts between wild and domesticated yeasts are likely to reflect the influence of human activities on structural genome evolution.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Yue JX,Li J,Aigrain L,Hallin J,Persson K,Oliver K,Bergström A,Coupland P,Warringer J,Lagomarsino MC,Fischer G,Durbin R,Liti Gdoi
10.1038/ng.3847subject
Has Abstractpub_date
2017-06-01 00:00:00pages
913-924issue
6eissn
1061-4036issn
1546-1718pii
ng.3847journal_volume
49pub_type
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