Hi Rosalía,

This paper has several examples from Bambusoideae.

Independent allopolyploidization events preceded speciation in the temperate and tropical woody bamboos

(Jimmy K. Triplett, Lynn G. Clark, Amanda E. Fisher and Jun Wen)

Hope this is what you are looking for.

Look at Brassicas crosses, like Getinet, A., Rakow, G., Raney, J. P. and Downey, R. K. (1997), Glucosinolate content in interspecific crosses of Brassica carinata with B. juncea and B. napus. Plant Breeding, 116: 39–46. doi:10.1111/j.1439-0523.1997.tb00972.x

Pls. find the attached files

Hoping this will be helpful to your project, good luck

Article Factors promoting polyploid persistence and diversification ...

Article Origins and introgression of polyploid species in Mentzelia ...

http://www.bioone.org/doi/abs/10.1554/0014-3820%282000%29054%5B0798%3AMIRGII%5D2.3.CO%3B2?journalCode=evol

https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Polyploid.html

Please look at pending file i hope it useful for you.

I am following

Sharing link:

http://www.annualreviews.org/doi/abs/10.1146/annurev.genet.34.1.401

Regards!

INTROGRESSION:

For " INTROGRESS a gene from one line to another line' approach, it usually involves 'repeated backcross scheme'. It is not simply a concept with cross between two lines.

For example:

A* x B = C (a disease-resistant gene from A* is introgressed into variety B)

C x B = BC1 (backcross 1)

BC1 x B = BC2 (backcross 2)

BC2 x B = BC3 (backcross 3)

..........It takes several backcrossing to recover B genome makeup

"Introgression, also known as introgressive hybridization, in genetics is the movement of a gene (gene flow) from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species." (Wikipedia)

I am wondering how many backcrosses needed to recover one parent genome makeup when a gene is introgressed from a polyploidy into another polyploidy variety?