noun
- the transfer of genetic material from one species into the gene pool of another through hybridization and repeated backcrossing
Usage: biology; genetics
Examples
- Introgression between wolves and domestic dogs has been documented in several populations.
- The researchers studied introgression patterns in oak species that hybridize in overlapping habitats.
- Ancient DNA analysis revealed introgression from Neanderthals into modern human genomes.
- Crop scientists monitor introgression of genes from wild relatives into cultivated varieties.
- The butterfly species showed evidence of introgression in areas where their ranges overlap.
- Introgression can introduce beneficial traits but may also threaten species integrity.