BIO220H1 Chapter Notes - Chapter 1: Extreme Measures, Inbreeding, Wild Type
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BIO220H1 Full Course Notes
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Document Summary
Genetic rescue has been developed to help avoid extinction. Unrelated individuals from a different population will be introduced to the population with the low fitness which is susceptible for extinction. This is an effort to reduce genetic load (aka low fitness) Persistence of endangered species required positive ecological factors. Genetic factors are also essential some have: immediate effect (inbreeding depression, longer term effect (genetic load, and loss of genetic diversity) Captive / controlled populations, inbreeding depression is minimized this is done by minimizing kinship between parents. Another way to reduce inbreeding depression in both captive and wild effective populations, the effective population can be maximized to retain genetic variation. The population can be divided into groups with limited gene flow between them: inbreeding depression vs genetic load: Inbreeding depression: the reduction in fitness due to reproduction between relatives. Genetic load happens over time due to the fixation of detrimental mutations by genetic drift.
