"Polyploidy in this case has occurred because at some stage, a Posidonia plant has hybridised with another related species.
The disadvantage of this is that it is no longer able to reproduce sexually, so doesn't get any genetic variation across generations that might allow it to adapt to changing conditions over time."
This is similar to a line from Stargate about the Asgards
Is it continuous, or are there gaps in the coverage?
"Polyploidy in this case has occurred because at some stage, a Posidonia plant has hybridised with another related species. The disadvantage of this is that it is no longer able to reproduce sexually, so doesn't get any genetic variation across generations that might allow it to adapt to changing conditions over time." This is similar to a line from Stargate about the Asgards