2008
DOI: 10.1590/s0102-09352008000600028
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Endogamia e limite de seleção em populações sob seleção assistida por marcadores moleculares

Abstract: RESUMOForam utilizados diferentes níveis de significância genômica na seleção assistida por marcadores para estimar a endogamia média e o limite de seleção, assim como os valores fenotípicos, em características quantitativas de baixa, média e alta herdabilidade. Uma comparação entre os níveis de 1%, 5%, 10% e 20% foi realizada por meio do sistema computacional de simulação genética (GENESYS), utilizado para a simulação de três genomas (cada qual constituído de um único caráter de baixa, média ou alta herdabili… Show more

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“…Some QTL studies have been performed on egg production, primarily using layer or broiler x layer crosses (Tuiskula-Haavisto et al, 2002;Wardecka et al, 2002;Sasaki et al, 2004;Schreiweis et al, 2006) and later using a layer strain crossed with a zoo-derived strain of red junglefowl (Wright et al, 2006), but there is a lack of studies incorporating meat quality, egg and reproductive traits using QTL analysis. Jangarelli and Euclydes (2008) observed that there was greater efficiency in using marker-assisted selection when the traits had low heritability estimates. Research on molecular markers could be carried out and recommended for traits that are hard to measure or can only be measured in one sex (Schuman, 1990).…”
Section: Discussionmentioning
confidence: 99%
“…Some QTL studies have been performed on egg production, primarily using layer or broiler x layer crosses (Tuiskula-Haavisto et al, 2002;Wardecka et al, 2002;Sasaki et al, 2004;Schreiweis et al, 2006) and later using a layer strain crossed with a zoo-derived strain of red junglefowl (Wright et al, 2006), but there is a lack of studies incorporating meat quality, egg and reproductive traits using QTL analysis. Jangarelli and Euclydes (2008) observed that there was greater efficiency in using marker-assisted selection when the traits had low heritability estimates. Research on molecular markers could be carried out and recommended for traits that are hard to measure or can only be measured in one sex (Schuman, 1990).…”
Section: Discussionmentioning
confidence: 99%