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Various approaches for describing genetic diversity
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Genetic diversity is necessary for the improvement §of economic traits and response to environmental §changes. Over the past 15 years, 300 out of the §6,000 breeds identified by FAO have become extinct §and there are currently more than a thousand breeds §faced with extinction. Loss of breeds may lead to a §reduction of genetic diversity, which limits the §ability of farmers to meet future agricultural §requirements. Furthermore, maintaining genetic §diversity within a breed is important in endangered §breeds as well as commercial breeds. This book §describes the various approaches to evaluate genetic §diversity between and within breeds of some Austrian §cattle populations. The approaches can be applied to §any species. The level of genetic diversity was §measured with different sources of information: §genetic polymorphisms, pedigree information and §measures derived from quantitative genetics. §Additionally, the lethal allele frequencies of four §genetic disorders in the Austrian Brown Swiss §population were estimated.
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