Results 121 to 130 of about 30,644 (241)
Evolutionary transitions from egg laying (oviparity) to live birth (viviparity) are common across various taxa. Many species also exhibit genetic variation in egg-laying mode or display an intermediate mode with laid eggs containing embryos at various ...
Laure Mignerot +6 more
doaj +1 more source
The Polypeptides of Infectious Bronchitis Virus (IBV-41 Strain)
The Massachusetts strain of avian infectious bronchitis virus was purified from embryonated hens' eggs. Four major species of apparent mol. wt. 90 000, 52 000, 29 000 and 26 000 were resolved by SDS-polyacrylamide gel electrophoresis. Omission of reducing agent failed to resolve the 29 000 mol. wt. component.
J A, Lanser, C R, Howard
openaire +2 more sources
Methodology of the biological risk classification of animal pathogens in Belgium [PDF]
The biological hazards posed by micro-organisms have lead to their categorisation into risk groups and the elaboration of classification lists. Current classification systems rely on criteria defined by the World Health Organization, which cover the ...
Boyen, Filip +8 more
core +1 more source
Evidence of genetic diversity generated by recombination among avian coronavirus IBV
Summary. Previously, we demonstrated that the DE072 strain of IBV is a recombinant which has an IBV strain D1466-like sequence in the S gene. Herein, we analyzed the remaining 3.8 kb 3′ end of the genome, which includes Gene 3, Gene 4, Gene 5, Gene 6 ...
C. Lee, M. Jackwood
semanticscholar +1 more source
Complete genome sequence analysis of a predominant infectious bronchitis virus (IBV) strain in China
Infectious bronchitis (IB) is one of the major diseases in poultry flocks all over the world caused by infectious bronchitis virus (IBV). In the study, the complete genome sequence of strain A2 was sequenced and analyzed, which was a predominant IBV ...
Xingli Liu +3 more
semanticscholar +1 more source
A Framework for IBVS Using Virtual Work
The visual servoing of manipulators is challenged by two main problems: the singularity of the inverse Jacobian and the physical constraints of a manipulator. In order to overcome the singularity issue, this paper presents a novel approach for image-based visual servoing (IBVS), which converts the propagation of errors in the image plane into the ...
Qiuda Yu +4 more
openaire +2 more sources
Presence of Subgenomic mRNAs in Virions of Coronavirus IBV
The presence of subgenomic mRNAs in virions of IBV was examined by probing Northern blots of RNA extracted from virions using as a probe a cDNA of the 3'-terminal nucleocapsid protein (N) gene. This detects all five mRNAs because of the 3'-coterminal, nested-set arrangement of coronavirus mRNAs.
Zhao, X., Shaw, K., Cavanagh, D.
openaire +2 more sources
Infectious bronchitis virus (IBV), a coronavirus that causes severe respiratory and gastrointestinal illness in poultry, leads to substantial economic losses.
Xiaoxiao Han, Yuan Huang, Junli Hao
doaj +1 more source
Myosin1G promotes Nodal signaling to control zebrafish left-right asymmetry
Myosin1D (Myo1D) has recently emerged as a conserved regulator of animal Left-Right (LR) asymmetry that governs the morphogenesis of the vertebrate central LR Organizer (LRO).
Akshai Janardhana Kurup +2 more
doaj +1 more source
Influenza B viruses in swine: virus tropism in swine respiratory organ explant cultures [PDF]
Poster Session: Virology and Viral ReceptorsBackground: Swine has been considered an animal reservoir of pandemic influenza A virus (IAV), for example, the 2009 H1N1 pandemic virus, swine is acting as a “mixing vessel” for the reassortment of swine ...
Bui, HT +4 more
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