Comparative genome analysis of trypanotolerance QTL
Certain breeds of domestic ruminants show remarkable resistance to the effects of African trypano-somosis. Unlike susceptible animals, trypanotolerant animals control parasitemia and do not show severe anaemia or production loss. Identification of trypanotolerance genes in cattle is hampered by cost...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2009
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| Online Access: | https://hdl.handle.net/10568/389 |
| _version_ | 1855520796717350912 |
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| author | Ng'ang'a, J. Imbuga, M. Iraqi, F.A. |
| author_browse | Imbuga, M. Iraqi, F.A. Ng'ang'a, J. |
| author_facet | Ng'ang'a, J. Imbuga, M. Iraqi, F.A. |
| author_sort | Ng'ang'a, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Certain breeds of domestic ruminants show remarkable resistance to the effects of African trypano-somosis. Unlike susceptible animals, trypanotolerant animals control parasitemia and do not show severe anaemia or production loss. Identification of trypanotolerance genes in cattle is hampered by cost and breeding time. Marked differences between inbred strains of mice in their response to T. congolense infection can be exploited in the analysis of the genetic basis of the infection. Murine trypanotolerance QTLs have been identified on chromosome 17, 5 and 1, and designated as Tir1, 2 and 3, respectively. Tir1 and 2 have been fine mapped to a confidence interval of 1 cM. In order to find the mouse homologous region on the bovine genome, nucleotide sequence across 95% CI of Tir2 and 3 were used in the selection of candidate genes. Homologous sequences were used in the definition of synteny relationships and subsequent identification of the shared disease response genes. The homologous genes within the human genome were then identified and aligned to the bovine radiation hybrid map in order to identify the mouse/bovine homologous regions. This revealed homology between murine and bovine QTL on Tir3 while the region on Tir2 is linked to innate immune response. |
| format | Journal Article |
| id | CGSpace389 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace3892024-05-01T08:16:21Z Comparative genome analysis of trypanotolerance QTL Ng'ang'a, J. Imbuga, M. Iraqi, F.A. Certain breeds of domestic ruminants show remarkable resistance to the effects of African trypano-somosis. Unlike susceptible animals, trypanotolerant animals control parasitemia and do not show severe anaemia or production loss. Identification of trypanotolerance genes in cattle is hampered by cost and breeding time. Marked differences between inbred strains of mice in their response to T. congolense infection can be exploited in the analysis of the genetic basis of the infection. Murine trypanotolerance QTLs have been identified on chromosome 17, 5 and 1, and designated as Tir1, 2 and 3, respectively. Tir1 and 2 have been fine mapped to a confidence interval of 1 cM. In order to find the mouse homologous region on the bovine genome, nucleotide sequence across 95% CI of Tir2 and 3 were used in the selection of candidate genes. Homologous sequences were used in the definition of synteny relationships and subsequent identification of the shared disease response genes. The homologous genes within the human genome were then identified and aligned to the bovine radiation hybrid map in order to identify the mouse/bovine homologous regions. This revealed homology between murine and bovine QTL on Tir3 while the region on Tir2 is linked to innate immune response. 2009-03 2010-01-13T10:45:41Z 2010-01-13T10:45:41Z Journal Article https://hdl.handle.net/10568/389 en Limited Access Elsevier Nganga, J.; Imbuga, M.; Iraqi, F.A. 2009. Comparative genome analysis of trypanotolerance QTL. Veterinary Immunology and Immunopathology. v. 128(1-3). p. 216. |
| spellingShingle | Ng'ang'a, J. Imbuga, M. Iraqi, F.A. Comparative genome analysis of trypanotolerance QTL |
| title | Comparative genome analysis of trypanotolerance QTL |
| title_full | Comparative genome analysis of trypanotolerance QTL |
| title_fullStr | Comparative genome analysis of trypanotolerance QTL |
| title_full_unstemmed | Comparative genome analysis of trypanotolerance QTL |
| title_short | Comparative genome analysis of trypanotolerance QTL |
| title_sort | comparative genome analysis of trypanotolerance qtl |
| url | https://hdl.handle.net/10568/389 |
| work_keys_str_mv | AT ngangaj comparativegenomeanalysisoftrypanotoleranceqtl AT imbugam comparativegenomeanalysisoftrypanotoleranceqtl AT iraqifa comparativegenomeanalysisoftrypanotoleranceqtl |