Simulação do número ideal de indivíduos no método bulk em autógamas

Autores

  • José Wilson da Silva
  • Jorge Luis Xavier Lins Cunha Universidade Federal Rural do Semi-Árido - UFERSA
  • Islan Diego Espindula de Carvalho
  • Kleyton Danilo da Silva Costa
  • Paulo Ricardo dos Santos
  • Daniel Furtado Ferreira

DOI:

https://doi.org/10.30969/acsa.v10i2.474

Palavras-chave:

Amostragem, herdabilidade, número de indivíduos

Resumo

O método bulk apresenta como principal limitação perdas de progênies durante a amostragem. Estudos para entender ou minimizar o seu efeito são escassos. O objetivo deste estudo foi verificar o efeito da amostragem no método bulk em plantas autógamas. Para isso, foram simuladas várias configurações considerando as gerações F4 e F24 e as famílias F4:5,  F4:6 e F24:25. Os efeitos no número médio de locos favoráveis, da variância genética e do número de alelos favoráveis, foram mensurados ao longo das 1000 simulações de cada configuração. As simulações contemplaram diferentes herdabilidades, interações alélicas e números de locos. O efeito da amostragem foi avaliado com diferentes tamanhos de bulk os quais foram 50, 200, 1000, 2000 e 5000 indivíduos. Conclui-se que na determinação do número de indivíduos no método bulk deve-se considerar a herdabilidade do caráter. O bulk de 2000 indivíduos nas condições simuladas mostrou-se eficiente.

Referências

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2014-06-15

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