Possible use of translocations to fix desirable genes in insect populations.

Chromosome translocation heterozygotes (T/+) are usually semisterile, but translocation homozygotes (T/T) if viable are usually fully fertile. If such a viable translocation were produced in an insect pest, T/T insects could be reared in captivity and released into the wild, where matings with wild types (+/+) would produce T/+ progeny.