Allopolyploidy expanded gene content but not pangenomic variation in the hexaploid oilseedCamelina sativa
Kevin A. Bird,
Jordan R. Brock,
Paul P. Grabowski
et al.
Abstract:Ancient whole-genome duplications (WGDs) are believed to facilitate novelty and adaptation by providing the raw fuel for new genes. However, it is unclear how recent WGDs may contribute to evolvability within recent polyploids. Hybridization accompanying some WGDs may combine divergent gene content among diploid species. Some theory and evidence suggest that polyploids have a greater accumulation and tolerance of gene presence-absence and genomic structural variation, but it is unclear to what extent either is… Show more
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