What do we mean by non allelic genes interaction?

Allelic gene interaction Expression of character is produced by interaction between alleles of a single gene. Non-allelic gene interaction Expression of character is produced by interaction between two or more genes. read more

These kinds of genetic interactions between the alleles of a single gene are referred to as allelic or intra- allelic interactions. Non-allelic or inter-allelic interactions also occur where the development of single character is due to two or more genes affecting the expression of each other in various ways. read more

Sometimes a dominant gene does not allow the expression of other non-allelic gene called dominant epistasis. In summer squash, the fruit colour is governed by two genes. The dominant gene W for white colour, suppresses the expres­sion of the gene Y which controls yellow colour. read more