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Origin and evolution of the RIG-I like RNA helicase gene family
The data suggest that the RIG-I like helicases possibly originated from three distinct genes coding for the core domains including the HELICc, CARD and ATP dependent DExD/H domains through gene fusion and gene/domain duplication.
Expression and Functional Characterization of the RIG-I-Like Receptors MDA5 and LGP2 in Rainbow Trout (Oncorhynchus mykiss)
It is demonstrated that both MDA5 and L GP2 are important RLRs in host surveillance against infection of both negative and positive viruses and that the LGP2 variant with a deletion of 54 amino acids at the C terminus acts as a negative regulator for LGP 2-elicited antiviral signaling by competing for the viral RNA PAMPs.
Global characterization of interferon regulatory factor (IRF) genes in vertebrates: Glimpse of the diversification in evolution
In vertebrates, the ten well-characterized IRF family members shared a relatively high degree of similarity in genomic structure and syntenic gene arrangement, implying that they might have been evolved in a similar pattern and with similar selective pressure in different classes of vertebrates.
Two Cathelicidin Genes Are Present in both Rainbow Trout (Oncorhynchus mykiss) and Atlantic Salmon (Salmo salar)
- Chin-I Chang, Yongan Zhang, J. Zou, P. Nie, C. Secombes
- BiologyAntimicrobial Agents and Chemotherapy
- 1 January 2006
Four cathelicidin genes have now been characterized in salmonids and two were identified in hagfish, confirming that cat helicid in genes evolved early and are likely present in all vertebrates.
Molecular characterization and expression analysis of nuclear oligomerization domain proteins NOD1 and NOD2 in grass carp Ctenopharyngodon idella.
Identification of an additional two-cysteine containing type I interferon in rainbow trout Oncorhynchus mykiss provides evidence of a major gene duplication event within this gene family in teleosts
Analysis of the regulatory elements in the IFN promoter region predicted several binding sites for key transcription factors that potentially play an important role in mediating IFN5 gene expression, which demonstrates that two subgroups are apparent within each of the 2C and 4C type I IFNs.
Diversity, specificity and speciation in larval Diplostomidae (Platyhelminthes: Digenea) in the eyes of freshwater fish, as revealed by DNA barcodes.
Phylogeny of freshwater parasitic copepods in the Ergasilidae (Copepoda: Poecilostomatoida) based on 18S and 28S rDNA sequences
Considering the relationships among the four genera, the phylogenetic analyses and subsequent hypothesis tests all suggest that Pseudergasilus clustered with some Ergasilus species may have a closer relationship with Sinerg asilus rather than with Paraergasil, which is polyphyletic rather than monophyletic.
Intron-Containing Type I and Type III IFN Coexist in Amphibians: Refuting the Concept That a Retroposition Event Gave Rise to Type I IFNs
In vivo and in vitro studies show that the Xenopus type III IFNs and their cognate receptor are ubiquitously expressed in tissues and primary splenocytes and can be upregulated by stimulation with synthetic double-stranded RNA, suggesting they are involved in antiviral defense in amphibians.
Molecular variation of Bothriocephalus acheilognathi Yamaguti, 1934 (Cestoda: Pseudophyllidea) in different fish host species based on ITS rDNA sequences
- H. Y. Luo, P. Nie, Y. A. Zhang, G. T. Wang, W. Yao
- Biology, Environmental ScienceSystematic Parasitology
- 1 July 2002
The molecular variation in Bothriocephalus acheilognathi Yamaguti, 1934 from 11 species of freshwater fish collected in Australia, China, the Czech Republic, England and Hawaii was investigated by determining the nucleotide sequences of the internal transcribed spacer region and it was demonstrated that the fragment length variation resulted primarily from microsatellite polymorphisms present in the ITS region.