Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/23372 |
Resumo: | The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsatellites, mapped on chromosome 9, and HEL5 (D21S15) and AFZ1 (D21S37) on chromosome 21. Associations between the genetic markers and reproductive efficiency were determined by one-way analysis of variance using calving interval (CI), live weight at calving (LWC), live weight at first calving (LW1C) and live weight at second calving (LW2C) as dependent variables. The genotypes were classified according to allele size into homozygous for long alleles, homozygous for short alleles and heterozygous. A longer CI was observed for individuals homozygous for long alleles at the HEL5 locus compared with the others (p = 0.022). For the AFZ1 locus, an inverse correlation between allele size and calving interval was observed (p = 0.022), suggesting that homozygosity for long alleles at this microsatellite could be advantageous. Analysis of the combined effect of favorable genotypes at HEL5 and AFZ1 indicated that animals with unfavorable genotypes (homozygous for long alleles at HEL5 and homozygous for short alleles at AFZ1) presented a significantly longer CI (p = 0.003) when compared to the other genotypes. The ETH225 and MM12E6 systems did not present any association with CI. None of the systems studied showed any significant association with LWC, LW1C or LW2C. |
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Oliveira, João Francisco Coelho deNeves, Jairo PereiraAlmeida, Erik Amazonas deSteigleder, Clara SabinaMoraes, José Carlos Ferrugem deGoncalves, Paulo Bayard DiasWeimer, Tania de Azevedo2010-06-05T04:17:22Z20051415-4757http://hdl.handle.net/10183/23372000514812The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsatellites, mapped on chromosome 9, and HEL5 (D21S15) and AFZ1 (D21S37) on chromosome 21. Associations between the genetic markers and reproductive efficiency were determined by one-way analysis of variance using calving interval (CI), live weight at calving (LWC), live weight at first calving (LW1C) and live weight at second calving (LW2C) as dependent variables. The genotypes were classified according to allele size into homozygous for long alleles, homozygous for short alleles and heterozygous. A longer CI was observed for individuals homozygous for long alleles at the HEL5 locus compared with the others (p = 0.022). For the AFZ1 locus, an inverse correlation between allele size and calving interval was observed (p = 0.022), suggesting that homozygosity for long alleles at this microsatellite could be advantageous. Analysis of the combined effect of favorable genotypes at HEL5 and AFZ1 indicated that animals with unfavorable genotypes (homozygous for long alleles at HEL5 and homozygous for short alleles at AFZ1) presented a significantly longer CI (p = 0.003) when compared to the other genotypes. The ETH225 and MM12E6 systems did not present any association with CI. None of the systems studied showed any significant association with LWC, LW1C or LW2C.application/pdfengGenetics and molecular biology. Ribeirão Preto. Vol. 28, no. 1 (Mar. 2005), p. 54-59BovinoMicrossatéliteBovineIGF-I receptorEstrogen receptorReproductive efficiencyAssociation between reproductive traits and four microsatellites in Brangus-Ibagé cattleinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000514812.pdf000514812.pdfTexto completo (inglês)application/pdf412412http://www.lume.ufrgs.br/bitstream/10183/23372/1/000514812.pdf2d2e846ddbea441060c06e93e3f1d6c8MD51TEXT000514812.pdf.txt000514812.pdf.txtExtracted Texttext/plain24170http://www.lume.ufrgs.br/bitstream/10183/23372/2/000514812.pdf.txt2c973043579f9b117739c27523c86f51MD52THUMBNAIL000514812.pdf.jpg000514812.pdf.jpgGenerated Thumbnailimage/jpeg1826http://www.lume.ufrgs.br/bitstream/10183/23372/3/000514812.pdf.jpg442db9ca1c24c124d2c64e1c03472365MD5310183/233722018-10-09 07:58:59.761oai:www.lume.ufrgs.br:10183/23372Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-09T10:58:59Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
title |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
spellingShingle |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle Oliveira, João Francisco Coelho de Bovino Microssatélite Bovine IGF-I receptor Estrogen receptor Reproductive efficiency |
title_short |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
title_full |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
title_fullStr |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
title_full_unstemmed |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
title_sort |
Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle |
author |
Oliveira, João Francisco Coelho de |
author_facet |
Oliveira, João Francisco Coelho de Neves, Jairo Pereira Almeida, Erik Amazonas de Steigleder, Clara Sabina Moraes, José Carlos Ferrugem de Goncalves, Paulo Bayard Dias Weimer, Tania de Azevedo |
author_role |
author |
author2 |
Neves, Jairo Pereira Almeida, Erik Amazonas de Steigleder, Clara Sabina Moraes, José Carlos Ferrugem de Goncalves, Paulo Bayard Dias Weimer, Tania de Azevedo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Oliveira, João Francisco Coelho de Neves, Jairo Pereira Almeida, Erik Amazonas de Steigleder, Clara Sabina Moraes, José Carlos Ferrugem de Goncalves, Paulo Bayard Dias Weimer, Tania de Azevedo |
dc.subject.por.fl_str_mv |
Bovino Microssatélite |
topic |
Bovino Microssatélite Bovine IGF-I receptor Estrogen receptor Reproductive efficiency |
dc.subject.eng.fl_str_mv |
Bovine IGF-I receptor Estrogen receptor Reproductive efficiency |
description |
The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsatellites, mapped on chromosome 9, and HEL5 (D21S15) and AFZ1 (D21S37) on chromosome 21. Associations between the genetic markers and reproductive efficiency were determined by one-way analysis of variance using calving interval (CI), live weight at calving (LWC), live weight at first calving (LW1C) and live weight at second calving (LW2C) as dependent variables. The genotypes were classified according to allele size into homozygous for long alleles, homozygous for short alleles and heterozygous. A longer CI was observed for individuals homozygous for long alleles at the HEL5 locus compared with the others (p = 0.022). For the AFZ1 locus, an inverse correlation between allele size and calving interval was observed (p = 0.022), suggesting that homozygosity for long alleles at this microsatellite could be advantageous. Analysis of the combined effect of favorable genotypes at HEL5 and AFZ1 indicated that animals with unfavorable genotypes (homozygous for long alleles at HEL5 and homozygous for short alleles at AFZ1) presented a significantly longer CI (p = 0.003) when compared to the other genotypes. The ETH225 and MM12E6 systems did not present any association with CI. None of the systems studied showed any significant association with LWC, LW1C or LW2C. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2010-06-05T04:17:22Z |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/23372 |
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1415-4757 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000514812 |
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http://hdl.handle.net/10183/23372 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Genetics and molecular biology. Ribeirão Preto. Vol. 28, no. 1 (Mar. 2005), p. 54-59 |
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openAccess |
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