Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18
The objective of this study was to map quantitative trait loci (QTL) on porcine chromosomes 16, 17 and 18 and to determine their association with carcass, organ and meat quality traits. An F2 population was produced by crossing two boars of the naturalized Brazilian Piau breed with 18 commercial fem...
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Sociedade Brasileira de Genética
2008-12-01
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doaj-4265559b3da745208652452ccdf033f22020-11-24T21:20:13ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852008-12-0131489890110.1590/S1415-47572008000500016Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18Débora M. PaixãoMiguel I. da Silva FilhoMário S. PereiraMarcos S. LopesLeandro BarbosaKatiene Régia Silva SouzaPaulo S. LopesSimone E.F. GuimarãesThe objective of this study was to map quantitative trait loci (QTL) on porcine chromosomes 16, 17 and 18 and to determine their association with carcass, organ and meat quality traits. An F2 population was produced by crossing two boars of the naturalized Brazilian Piau breed with 18 commercial females (Landrace x Large White x Pietrain). The population was genotyped for 11 microsatellite markers distributed over the three chromosomes and the results were used to construct a marker-specific linkage map for the population. Analysis of the polymorphic information content showed that the microsatellite markers were adequate for the study of quantitative traits. QTL were identified by regression interval mapping using QTL Express software. QTL not previously described in the literature were detected on chromosome 16, whereas QTL described in other populations were detected on chromosomes 17 and 18. The information from the significant QTL identified here will be useful for future fine-mapping studies and should provide a better understanding of productive phenotypes in pigs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500016divergent crossesmicrosatellite markerspig productionQTL mapping |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Débora M. Paixão Miguel I. da Silva Filho Mário S. Pereira Marcos S. Lopes Leandro Barbosa Katiene Régia Silva Souza Paulo S. Lopes Simone E.F. Guimarães |
spellingShingle |
Débora M. Paixão Miguel I. da Silva Filho Mário S. Pereira Marcos S. Lopes Leandro Barbosa Katiene Régia Silva Souza Paulo S. Lopes Simone E.F. Guimarães Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 Genetics and Molecular Biology divergent crosses microsatellite markers pig production QTL mapping |
author_facet |
Débora M. Paixão Miguel I. da Silva Filho Mário S. Pereira Marcos S. Lopes Leandro Barbosa Katiene Régia Silva Souza Paulo S. Lopes Simone E.F. Guimarães |
author_sort |
Débora M. Paixão |
title |
Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
title_short |
Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
title_full |
Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
title_fullStr |
Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
title_full_unstemmed |
Quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
title_sort |
quantitative trait loci for carcass, internal organ and meat quality traits on porcine chromosomes 16, 17 and 18 |
publisher |
Sociedade Brasileira de Genética |
series |
Genetics and Molecular Biology |
issn |
1415-4757 1678-4685 |
publishDate |
2008-12-01 |
description |
The objective of this study was to map quantitative trait loci (QTL) on porcine chromosomes 16, 17 and 18 and to determine their association with carcass, organ and meat quality traits. An F2 population was produced by crossing two boars of the naturalized Brazilian Piau breed with 18 commercial females (Landrace x Large White x Pietrain). The population was genotyped for 11 microsatellite markers distributed over the three chromosomes and the results were used to construct a marker-specific linkage map for the population. Analysis of the polymorphic information content showed that the microsatellite markers were adequate for the study of quantitative traits. QTL were identified by regression interval mapping using QTL Express software. QTL not previously described in the literature were detected on chromosome 16, whereas QTL described in other populations were detected on chromosomes 17 and 18. The information from the significant QTL identified here will be useful for future fine-mapping studies and should provide a better understanding of productive phenotypes in pigs. |
topic |
divergent crosses microsatellite markers pig production QTL mapping |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500016 |
work_keys_str_mv |
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