Sisäsiitoskierrokset
Sisäsiitoskierrokset, or inbreeding loops, refer to a genetic phenomenon observed in some animal populations, particularly those with a history of controlled or semi-controlled breeding. This occurs when individuals within a closed population are repeatedly mated with closely related ancestors or relatives. The primary driver of sisäsiitoskierrokset is often the desire to preserve or enhance specific traits deemed desirable by breeders. Over generations, this practice can lead to an increased frequency of homozygous genotypes, meaning individuals possess two identical alleles for a given gene. While this can fix desirable traits, it also elevates the risk of expressing recessive deleterious alleles, which can manifest as reduced fertility, increased susceptibility to diseases, or other detrimental health issues. The term "loop" implies a cyclical nature where the same lines or individuals are brought back into the breeding program, reinforcing the genetic relatedness. Managing sisäsiitoskierrokset requires careful pedigree analysis and strategic breeding plans to balance trait fixation with maintaining genetic diversity and overall population health. Monitoring genetic markers and health indicators is crucial for identifying and mitigating potential negative consequences.