Testing the Genomic Shock Hypothesis Using Transposable Element Expression in Yeast Hybrids.

ABSTRACT: Transposable element (TE) insertions are a source of structural variation and can cause genetic instability and gene expression changes. A host can limit the spread of TEs with various repression mechanisms. Many examples of plant and animal interspecific hybrids show disrupted TE repression leading to TE propagation. Recent studies in yeast did not find any increase in transposition rate in hybrids. However, this does not rule out the possibility that the transcriptional or translational activity of TEs increases following hybridization because of a disruption of the host TE control mechanisms. Thus, whether total expression of a TE family is higher in hybrids than in their parental species remains to be examined. We leveraged publically available RNA-seq and ribosomal profiling data on y

SUBMITTER: Drouin M 

PROVIDER: S-EPMC10512236 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature