Table 3 Genomic responses to changes in ploidy and interspecific hybridization in plants.
| Taxon | Genomic response |
|---|---|
|
Asteraceae
(Compositae) | Genome expansion and retrotransposon proliferation in sunflower hybrids [185] |
| Chromosomal repatterning and the evolution of sterility barriers in hybrid sunflower species [186] | |
| Rapid chromosome evolution in polyploids [187] | |
| Grasses | Altered methylation patterns and chromosome restructuring in hybrids [188] |
| Potato | Genome instability in hybrids [189] |
| Phenotypic and epigenetic variability in a diploid hybrid [190] | |
|
Nicotiana
spp. (tobacco) | Elimination of repeated DNA in a synthetic allotetraploid [191] |
| Rice | Extensive genomic variability induced by introgression from wild rice [192] |
| LTR retrotransposon movements in rice lines introgressed by wild rice [193] | |
| Retrotransposon activation following introgression [194] | |
| Brassica | Rapid genome change in synthetic polyploids [195] |
| Large scale chromosome restructuring [196] | |
| Wheat [197] | Sequence loss and cytosine methylation following hybridization and allopolyploidy [198] |
| Rapid genome evolution following allopolyploidy [199] | |
| Changes in methylation patterns of mobile elements in allopolyploids [200] | |
| Parental repeat elimination in newly synthesized allopolyploids [201] | |
| Rapid genomic changes in interspecific and intergeneric hybrids and allopolyploids [202] | |
| Arabidopsis | Genomic changes in synthetic polyploids [203] |
| Chromosome rearrangements after allotetraploid formation [204] |