Author Topic: Tetraploid Phaseolus species crosses?  (Read 87 times)


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Tetraploid Phaseolus species crosses?
« on: 2021-12-04, 01:54:48 PM »
I have seen many posts on crosses of Phaseolus species.  More power to everyone involved.  But I haven seen only one example where anyone has doubled the chromosomes of an F1 species cross to get a (perhaps) true breeding line of species hybrids.  That is lima bean x thicket bean.
I can see why.  Usually such crosses are made to get some gene(s) from one species to another.  The donor species generally has some less wanted genes that one is glad to leave behind by backcrossing to the better (in a given environment) species.
So, does anyone know of other tetraploid interspecific bean hybrids?