I would like to know what advantages polyploidy holds. I have come across a few examples during my research of polyploidy, for example human adults' hearts contain 27% diploid, 71% tetraploid and 2% octaploid nuclei, Deinococcus radiodurans can have up to 10 copies of genome, and most of the plants consumed by humans have more than 2 copies.
I have no source of any sort for these, but I think they could be advantages:
- One of the most obvious one would be resistance to more physical effects.
- In the case of plants it might be the increased need for protein construction during the development of the seed.
What I would like to ask is whether the ones I wrote are correct, and if there are any other possible advantage.
I have read similar questions but could not find what I was looking for.