Article
Parental transposable element loads influence their dynamics in young Nicotiana hybrids and allotetraploids.
The New phytologist - 1 Feb 2019
Mhiri Corinne, Parisod Christian, Daniel Julien, Petit Maud, Lim K Yoong, Dorlhac de Borne François, Kovarik Ales, Leitch Andrew R, Grandbastien Marie-Angèle
Abstract excerpt
The genomic shock hypothesis suggests that allopolyploidy is associated with genome changes driven by transposable elements, as a response to imbalances between parental insertion loads. To explore this hypothesis, we compared three allotetraploids, Nicotiana arentsii, N. rustica and N. tabacum, which arose over comparable time frames from hybridisation between increasingly divergent diploid species. We used...
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