The crossing between two different species of the same genus is called

Solution (By Examveda Team)

The crossing between two different species of the same genus is called Interspecific hybridization.
Interspecific hybridization is the crossing of two species from the same genus. This allows the exploitation of useful genes from wild, unimproved species for the benefit of the cultivated species.
The Pisum species are diploid self-pollinators sharing a similar karyotype.