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| Faria,Danielle Assis de; Guimarães,Simone Eliza Facioni; Lopes,Paulo Sávio; Pires,Aldrin Vieira; Paiva,Samuel Rezende; Sollero,Bruna Pena; Wenceslau,Amauri Arias. |
| The association between G316A growth hormone polymorphism and quantitative traits was investigated in an F2 population of pigs. Association analyses were performed using a statistical model that included genotype, sex, batch and sex by genotype interaction as fixed effects and sire as random effect. The polymorphism was associated with the number of right teats (p = 0.03), heart weight (p = 0.04), lung weight (p = 0.05), carcass length determined by the Brazilian carcass classification method (p = 0.04), picnic shoulder weight (p = 0.07), jowl weight (p = 0.01), pH 24 h after slaughtering (p = 0.03) and drip loss (p = 0.01). Interaction between genotype and sex was observed for six performance traits. The additive effect was significant (p < 0.10) for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candidate genes; Divergent cross; Molecular marker; Sex x genotype interaction; Swine. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400010 |
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| Faria,Danielle Assis de; Peixoto,Jane de Oliveira; Lopes,Paulo Sávio; Paiva,Samuel Rezende; Silva,Priscila Vendramini; Guimarães,Simone Eliza Facioni. |
| This study investigated the association between IGF-I microsatellite marker in an F2 population (N=459) generated by mating of native boars to Brazilian commercial sows with performance, carcass cut, and meat quality traits. Association analyses were carried out using a statistical model that included genotype, sex, and group as fixed effects and sire as random effect. The IGF-I genotypes were significantly associated with different quantitative traits and these results corroborate with previous QTL analyses obtained for this chromosome region in swine. Additive and dominance effects, as well as a genotype-sex interaction, were estimated and discussed in the text. According to the results obtained, this marker is suitable for QTL search in the genotyped... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Divergent cross; Microsatellite marker; Quantitative traits; Sex × genotype interaction; Swine. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000200007 |
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| Peixoto,Jane de Oliveira; Faria,Danielle Assis de; Silva,Priscila Vendramini; Fonseca,Isabela; Lopes,Paulo Sávio; Guimarães,Simone Eliza Facioni. |
| It was investigated the association between leptin gene single nucleotide polymorphisms (SNPs) T2411C and T3266G with carcass traits in F2 pigs obtained by crossing native Brazilian Piau with commercial sows composed of Landrace, Large White and Pietrain breeds. Association analyses were performed using a statistical model that included genotype, sex, and batch as fixed effects, sire and error as random effects. The T2411C SNP was associated with skinless and fatless boston shoulder weight (BSW), backfat thickness at last rib, 6.5 cm from the midline (P2), skinless and fatless picnic shoulder weight, and sirloin weight (SLW). The T3266G mutation was associated with slaughter age, bacon weight, BSW, midline backfat thickness between last and last but one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candidate gene; Pig genomics; Pig production. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000200008 |
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| Cavalcanti,Lilian Cristina Gomes; Moraes,José Carlos Ferrugem; Faria,Danielle Assis de; McManus,Concepta Margaret; Nepomuceno,Alcebiades Renato; Souza,Carlos José Hoff de; Caetano,Alexandre Rodrigues; Paiva,Samuel Rezende. |
| Abstract: The objective of this work was to identify single nucleotide polymorphisms (SNPs) in resequencing data from MC1R, ASIP, and TYRP1 genes derived from Crioula sheep (Ovis aris) with different coat colors. Polymorphisms in the ASIP (agouti-signaling protein), MC1R (melanocortin 1 receptor), and TRYP1 (tyrosinase-related protein 1) genes were analyzed in 115 sheep from Embrapa’s conservation nucleus of crioula sheep, in Brazil. A total of 7,914 bp were sequenced per animal, and 14 SNPs were identified. Two additional assays were performed to detect duplications and deletions in the ASIP gene. Ninety-five percent of the coat color variation was explained by epistatic interactions observed between specific alleles in the MC1R and ASIP genes. Evidence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovis aris; ASIP; Genetic resources conservation; Marker-assisted selection; MC1R; TYRP1. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800615 |
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| Paiva,Samuel Rezende; Silvério,Vanessa Chaves; Egito,Andréa Alves; McManus,Concepta; Faria,Danielle Assis de; Mariante,Arthur da Silva; Castro,Sílvia Ribeiro; Albuquerque,Maria do Socorro Maués; Dergam,Jorge Abdala. |
| The objectives of this work were to investigate the genetic structure of the Brazilian hair sheep breeds and to determine the origin of the Santa Inês breed. Molecular similarity was determined using Randomly Amplified Polymorphic DNA - Polymerase Chain Reaction markers in 238 individuals from five naturalized sheep breeds: Santa Inês (48 animals), Rabo Largo (48), Somali (48), Morada Nova (48) and Bergamasca (46), collected in Goiás, Sergipe, Bahia, and Ceará States as well as in the Federal District. Fifty-four loci were selected from 19 primers, after a pilot test using 140 primers. Qualitative analyses indicate diagnostic markers for all breeds. All breeds were significantly different from each other. Interbreed differences were explained by 14.92% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovis aries; Conservation genetics; Domestic animal diversity; Molecular markers; RAPD. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000900008 |
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