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Perfil genético do Bagarius bagarius selvagem: perspectivas a partir de marcadores SSR
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ISBN10: 6208664799
ISBN13: 9786208664794
Publisher: Edicoes Nosso Conhecimento
Published: Feb 25 2025
Pages: 96
Weight: 0.31
Height: 0.23 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208664794
Publisher: Edicoes Nosso Conhecimento
Published: Feb 25 2025
Pages: 96
Weight: 0.31
Height: 0.23 Width: 6.00 Depth: 9.00
Language: Portuguese
Este livro explora a diversidade genética de Bagarius bagarius, uma espécie de peixe do rio Chenab, utilizando marcadores de microssatélites para avaliar o impacto de actividades antropogénicas como a poluição, a sobre-exploração e as alterações climáticas. Através da extração de ADN de tecidos de peixes e da amplificação de loci de microssatélites polimórficos, o estudo analisa métricas genéticas fundamentais, como o número de alelos, a riqueza alélica, o número efetivo de alelos e a heterozigotia observada. Os resultados revelam uma diversidade genética moderada entre as populações, com valores para o número de alelos (Na) a variar entre 3,8 e 4,8 e a heterozigotia (Ho) entre 0,48 e 0,51, sugerindo uma potencial erosão genética devido aos impactos humanos. Um dendrograma UPGMA mostra dois clados genéticos principais, indicando variação genética baixa a moderada. A pesquisa enfatiza a necessidade de estratégias de conservação para preservar a diversidade genética e garantir a sobrevivência da espécie a longo prazo em meio a pressões ecológicas.
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