Applied genomics: the brazilian experience.

Projeto/Plano de Ação: 01.06.10602-03

Seleção de genes candidatos a referência para estudos de expressão gênica por meio de análises de RNA-Seq e qPCR.

Editores técnicos: João de Mendonça Naime, Caue Ribeiro, Maria Alice Martins, Elaine Cristina Paris, Paulino Ribeiro Villas Boas, Ladislau Marcelino Rabello

Influence of the A286G polymorphism in the LEPR gene on carcass traits in a paternal broiler line.

Projeto/Plano de Ação: 01.06.01.006

Investigation of the LEPR1 A>G polymorphism in the leptin receptor gene in a commercial broiler population.

Projeto/Plano de Ação: 01.06.10602-03

Identification of polymorphisms associated with production traits on chicken (Gallus gallus) chromosome 4.

Genetic selection for production traits has resulted in a rapid improvement in animal performance and development. Previous studies have mapped quantitative trait loci for body weight at 35 and 41 days, and drum and thigh yield, onto chicken chromosome 4. We investigated this region for single nucleotide polymorphisms and their associations with important economic traits. Three positional candidate genes were studied: KLF3 (Krüeppel-like factor 3), SLIT2 (Slit homolog 2), and PPARGC1A (peroxisome proliferator-activated receptor gamma, coactivator 1 alpha). Fragment sequencing of these genes was conducted in 11 F1 animals, and one polymorphism in each gene was selected and genotyped in an F2 population (N = 276) and a paternal broiler line TT (N = 840). Associations were identified with growth, carcass, and fat traits in the F2 and the paternal line (P < 0.05). Using single markers in both the F2 and the TT line, KLF3 was associated with weight gain (P < 0.05), PPPARGC1A was associated with liver and wing-parts weights and yields (P < 0.05), and SLIT2 was associated with back yield (P < 0.05) and fat traits (P < 0.05). Using multiple markers, KLF3 lost its significance in both populations, and SLIT2 was associated with feed conversion only in the TT population (P < 0.05). The QTLs mapped in the F2 population could be partly explained by PPARGC1A and SLIT2, which were associated with body weight at 35 and 41 days, respectively, and with drum and thigh yield in the same population. The results of this study indicate the importance of these genes for production traits

Manejo da irrigação em pivôs centrais no cerrado de Minas Gerais.

bitstream/item/31674/1/doc-112.pd

Sensory analysis as a tool to support rice breeding research: a comparison between hybrid rice and conventional commercial rice.

This study aims to assess sensory differences between a hybrid variety sample and conventional commercial rice samples by the Difference from Control Method. This method provides information on the size of the difference between a control and other sample

Análise de qualidade de RNA para estudo do perfil transcriptômico de animais extremos para eficiência alimentar da raça Nelore.

Editado por Ana Rita de Araújo nogueira, simone Cristina Méo Nicur