Introgression lines (ILs)


Introgression lines (ILs)search for term

A series of lines, each carrying a chromosomal segment from a donor (wild relative) genotype in the background of an elite genotype. Therefore, they constitute an ‘‘exotic library’’ where the entire wildspecies genome is partitioned among several lines, each carrying a single homozygous introgressed segment. The nearly isogenic nature of the ILs provides a relative advantage over other segregating populations when rapidly implementing a pyramiding approach via crosses and marker analysis. ILs constitutes an efficient source for the discovery and utilization of genes or QTLs that control traits of agricultural importance. (Varshney 2010)