Recombination of the porcine X chromosome A high density linkage map
Background Linkage maps are essential tools for the study of several topics in genome biology. High density linkage maps for the porcine autosomes have been constructed exploiting the high density data provided by the PorcineSNP60 BeadChip. However, a high density SSCX linkage map has not been reported up to date. The aim of the current study was to build an accurate linkage map of SSCX to provide precise estimates of recombination rates along this chromosome and creating a new tool for QTL fine mapping. Results A female-specific high density linkage map was built for SSCX using Sscrofa10.2 annotation. The total length of this chromosome was 84.61 cM; although the average recombination rate was 0.60 cM/Mb, both cold and hot recombination regions were identified. A Bayesian probabilistic to genetic groups and revealed that the animals used in the current study for linkage map construction were likely to be carriers of X chromosomes of European origin. Finally, the newly generated linkage map was used to fine-map a QTL at 16 cM for intramuscular fat content (IMF) measured on longissimus dorsi. The sulfatase isozyme S gene constitutes a functional and positional candidate gene underlying the QTL effect. Conclusions The current study presents for the first time a high density linkage map for SSCX and supports the presence of cold and hot recombination intervals along this chromosome. The large cold recombination region in the central segment of the chromosome is not likely to be due to structural differences between X chromosomes of European and Asian origin. In addition, the newly generated linkage map has allowed us to fine-map a QTL on SSCX for fat deposition. � 2014 Fernandez et al.
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Format: | artículo biblioteca |
Language: | English |
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BioMed Central
2014
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Subjects: | Porcine linkage maps, Recombination, X chromosome, European and Asian X chromosome, |
Online Access: | http://hdl.handle.net/20.500.12792/5071 http://hdl.handle.net/10261/291716 |
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dig-inia-es-10261-2917162023-02-20T07:21:22Z Recombination of the porcine X chromosome A high density linkage map Fernández, A. I. Muñoz Muñoz, María Alves, E. Folch, J. M. Noguera, J. L. Pérez Enciso, M. Rodríguez, M. C. Silió, L. Porcine linkage maps Recombination X chromosome European and Asian X chromosome Background Linkage maps are essential tools for the study of several topics in genome biology. High density linkage maps for the porcine autosomes have been constructed exploiting the high density data provided by the PorcineSNP60 BeadChip. However, a high density SSCX linkage map has not been reported up to date. The aim of the current study was to build an accurate linkage map of SSCX to provide precise estimates of recombination rates along this chromosome and creating a new tool for QTL fine mapping. Results A female-specific high density linkage map was built for SSCX using Sscrofa10.2 annotation. The total length of this chromosome was 84.61 cM; although the average recombination rate was 0.60 cM/Mb, both cold and hot recombination regions were identified. A Bayesian probabilistic to genetic groups and revealed that the animals used in the current study for linkage map construction were likely to be carriers of X chromosomes of European origin. Finally, the newly generated linkage map was used to fine-map a QTL at 16 cM for intramuscular fat content (IMF) measured on longissimus dorsi. The sulfatase isozyme S gene constitutes a functional and positional candidate gene underlying the QTL effect. Conclusions The current study presents for the first time a high density linkage map for SSCX and supports the presence of cold and hot recombination intervals along this chromosome. The large cold recombination region in the central segment of the chromosome is not likely to be due to structural differences between X chromosomes of European and Asian origin. In addition, the newly generated linkage map has allowed us to fine-map a QTL on SSCX for fat deposition. � 2014 Fernandez et al. 2023-02-20T07:21:22Z 2023-02-20T07:21:22Z 2014 artículo BMC Genetics 15: e148 (2014) http://hdl.handle.net/20.500.12792/5071 http://hdl.handle.net/10261/291716 10.1186/s12863-014-0148-x 1471-2156 en open BioMed Central |
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Porcine linkage maps Recombination X chromosome European and Asian X chromosome Porcine linkage maps Recombination X chromosome European and Asian X chromosome Fernández, A. I. Muñoz Muñoz, María Alves, E. Folch, J. M. Noguera, J. L. Pérez Enciso, M. Rodríguez, M. C. Silió, L. Recombination of the porcine X chromosome A high density linkage map |
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Background Linkage maps are essential tools for the study of several topics in genome biology. High density linkage maps for the porcine autosomes have been constructed exploiting the high density data provided by the PorcineSNP60 BeadChip. However, a high density SSCX linkage map has not been reported up to date. The aim of the current study was to build an accurate linkage map of SSCX to provide precise estimates of recombination rates along this chromosome and creating a new tool for QTL fine mapping. Results A female-specific high density linkage map was built for SSCX using Sscrofa10.2 annotation. The total length of this chromosome was 84.61 cM; although the average recombination rate was 0.60 cM/Mb, both cold and hot recombination regions were identified. A Bayesian probabilistic to genetic groups and revealed that the animals used in the current study for linkage map construction were likely to be carriers of X chromosomes of European origin. Finally, the newly generated linkage map was used to fine-map a QTL at 16 cM for intramuscular fat content (IMF) measured on longissimus dorsi. The sulfatase isozyme S gene constitutes a functional and positional candidate gene underlying the QTL effect. Conclusions The current study presents for the first time a high density linkage map for SSCX and supports the presence of cold and hot recombination intervals along this chromosome. The large cold recombination region in the central segment of the chromosome is not likely to be due to structural differences between X chromosomes of European and Asian origin. In addition, the newly generated linkage map has allowed us to fine-map a QTL on SSCX for fat deposition. � 2014 Fernandez et al. |
format |
artículo |
topic_facet |
Porcine linkage maps Recombination X chromosome European and Asian X chromosome |
author |
Fernández, A. I. Muñoz Muñoz, María Alves, E. Folch, J. M. Noguera, J. L. Pérez Enciso, M. Rodríguez, M. C. Silió, L. |
author_facet |
Fernández, A. I. Muñoz Muñoz, María Alves, E. Folch, J. M. Noguera, J. L. Pérez Enciso, M. Rodríguez, M. C. Silió, L. |
author_sort |
Fernández, A. I. |
title |
Recombination of the porcine X chromosome A high density linkage map |
title_short |
Recombination of the porcine X chromosome A high density linkage map |
title_full |
Recombination of the porcine X chromosome A high density linkage map |
title_fullStr |
Recombination of the porcine X chromosome A high density linkage map |
title_full_unstemmed |
Recombination of the porcine X chromosome A high density linkage map |
title_sort |
recombination of the porcine x chromosome a high density linkage map |
publisher |
BioMed Central |
publishDate |
2014 |
url |
http://hdl.handle.net/20.500.12792/5071 http://hdl.handle.net/10261/291716 |
work_keys_str_mv |
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1767603245215121408 |