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S.A. Headley

Publications of : S.A. Headley
Animal Genetics   Research Article

Brazilian strain of bovine respiratory coronavirus is derived from dual enteric and respiratory tropism

Bovine coronavirus (BCoV) is a pathogen related to enteric and respiratory diseases in cattle worldwide. Enteric (BECoV) strains of BCoV are predominant in South America, and genetic investigations have been conducted to identify its relationship with isolates of respiratory origin (BRCoV). In this study, we used a BRCoV strain (BR-UEL11) derived from an outbreak of.. Read More»

Genet. Mol. Res. 16(2): gmr16029580

DOI: 10.4238/gmr16029580

Medical Genetics   Research Article

Phylogenetic analyses of the hemagglutinin gene of wild-type strains of canine distemper virus in southern Brazil

    F.J. Negrão, N.R. Gardinali, S.A. Headley, A.A. Alfieri, M.A. Fernandez and A.F. Alfieri

This study examined the phylogenetic relationship of strains of canine distemper virus (CDV) collected from Paraná State, Brazil, based on the hemagglutinin gene. Urine samples were collected from 4 dogs from northern Paraná State that demonstrated clinical manifestations of canine distemper. The participation of CDV was initially confirmed by RT-PCR targeting the nucleocapsid pro.. Read More»

Genet. Mol. Res. 12(3): 2013.March.11.2

DOI: 10.4238/2013.March.11.2

Animal Genetics   Research Article

Morphology and muscle gene expression in GIFT and Supreme Nile tilapia varieties reared in two cultivation systems

    E.C.S. Lima, J.A. Povh, R.A.A. Otonel, J.H. Leonhardt, A.A. Alfieri, S.A. Headley, F.P. Souza, A.R. Poveda-Parra, P.J. Furlan-Murari, N.M. Lopera-Barrer1

Tissue growth in most fishes occurs by muscular hyperplasia and hypertrophy, which are influenced by different regulatory factors, such as myostatin. The current study evaluated the influence of cultivation in hapas and earthen ponds on the diameter of white muscle fibers and on the myostatin (MSTN-1) gene in GIFT and Supreme varieties of tilapia. Fish of both varie.. Read More»

Genet. Mol. Res. 16(1): gmr16019407

DOI: 10.4238/gmr16019407