درون‌گرایی (دورگه)

Also known as introgressive hybridization, genetic introgression

alt=Introgressive phylogenetic clade|thumb|A phylogenetic model of introgressive hybridization; the hybrid zone of the two species' lineages is shown in blue, with each horizontal line representing an individual introgressive event. Introgression, also known as introgressive hybridization, in genetics is the transfer of genetic material from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species. Introgression is a long-term process, even when artificial; it may take many hybrid generations before significant backcrossin