Non-invasive genetic sampling for molecular sexing and microsatellite genotyping of hyacinth macaw (Anodorhynchus hyacinthinus) |
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Authors: | Flavia T Presti Janaína Meyer Paulo TZ Antas Neiva MR Guedes Cristina Y Miyaki |
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Institution: | 1.Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil.;2.PTZA Consultoria em Meio Ambiente, Brasília, DF, Brazil.;3.Anhanguera Educacional & Instituto Arara Azul, Campo Grande, MS, Brazil. |
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Abstract: | Molted feather sampling is a useful tool for genetic analyses of endangered species, but it is often very laborious due to the low quality and quantity of the DNA obtained. In the present study we show the parts of feathers that resulted in better yield of DNA. In descending order these were: blood clot outside the umbilicus, umbilicus (without blood clot), tip, inner membrane, and small calamus. Compared to DNA extracted from blood samples, DNA extracted from feathers produced microsatellite alleles of poorer quality and had to be processed immediately after extraction. As expected due to the level of DNA degradation, molecular sexing protocols that result in shorter PCR products were more efficient. |
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Keywords: | molted feathers blood sample DNA PCR product parrot |
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