Biomaterial Database

Species variation within the internal transcribed spacer (ITS) region of Gyrodactylus (Monogenea:Gyrodactylidae) ribosomal RNA genes. 1997

C O Cunningham

SOAEFD Marine Laboratory, Aberdeen, United Kingdom.

The ribosomal internal transcribed spacer (ITS) region from individual Gyrodactylus specimens was amplified by polymerase chain reaction (PCR). The reaction amplified the entire ITS1-5.8S-ITS2 region of the ribosomal RNA gene cluster using primers that hybridize to the 3' terminus of the small subunit and the 5' terminus of the large subunit ribosomal RNA genes. The PCR products from Gyrodactylus salaris and Gyrodactylus thymalli were cloned and sequenced. The Gyrodactylus 5.8S gene was identified following comparative alignment of the G. salaris sequence and a Schistosoma 5.8S gene sequence. The ITS regions from G. salaris, G. thymalli, Gyrodactylus derjavini, and Gyrodactylus truttae were compared by restriction enzyme analysis and interspecific restriction fragment length polymorphisms were found. Gyrodactylus salaris and G. thymalli restriction fragment sizes were confirmed from sequence data. ITS amplification followed by Sau3AI digestion enables rapid and clear differentiation of G. salaris, G. derjavini, and G. truttae.

UI	MeSH Term	Description	Entries
D008969	Molecular Sequence Data	Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.	Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D012150	Polymorphism, Restriction Fragment Length	Variation occurring within a species in the presence or length of DNA fragment generated by a specific endonuclease at a specific site in the genome. Such variations are generated by mutations that create or abolish recognition sites for these enzymes or change the length of the fragment.	RFLP,Restriction Fragment Length Polymorphism,RFLPs,Restriction Fragment Length Polymorphisms
D002589	Cestoda	A subclass of segmented worms comprising the tapeworms.	Raillietina,Tapeworms,Cestodes,Cestodas,Cestode,Raillietinas,Tapeworm
D002590	Cestode Infections	Infections with true tapeworms of the helminth subclass CESTODA.	Bertielliasis,Cenuriasis,Coenuriasis,Dipylidiasis,Raillietiniasis,Tapeworm Infection,Bertielliases,Cenuriases,Cestode Infection,Coenuriases,Dipylidiases,Infection, Cestode,Infection, Tapeworm,Infections, Cestode,Infections, Tapeworm,Raillietiniases,Tapeworm Infections
D003001	Cloning, Molecular	The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.	Molecular Cloning
D005393	Fish Diseases	Diseases of freshwater, marine, hatchery or aquarium fish. This term includes diseases of both teleosts (true fish) and elasmobranchs (sharks, rays and skates).	Disease, Fish,Diseases, Fish,Fish Disease
D005399	Fishes	A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.
D005810	Multigene Family	A set of genes descended by duplication and variation from some ancestral gene. Such genes may be clustered together on the same chromosome or dispersed on different chromosomes. Examples of multigene families include those that encode the hemoglobins, immunoglobulins, histocompatibility antigens, actins, tubulins, keratins, collagens, heat shock proteins, salivary glue proteins, chorion proteins, cuticle proteins, yolk proteins, and phaseolins, as well as histones, ribosomal RNA, and transfer RNA genes. The latter three are examples of reiterated genes, where hundreds of identical genes are present in a tandem array. (King & Stanfield, A Dictionary of Genetics, 4th ed)	Gene Clusters,Genes, Reiterated,Cluster, Gene,Clusters, Gene,Families, Multigene,Family, Multigene,Gene Cluster,Gene, Reiterated,Multigene Families,Reiterated Gene,Reiterated Genes
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001483	Base Sequence	The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.	DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA