![]() ![]() search terms that are recognized as the common name for an organism, e.g.The Assembly resource may be searched using several fields including: Search terms should be entered into the search box in the grey bar found at the top of the page. Finding an assembly by searching Search terms Finding assemblies of interestĪssemblies of interest can be found either by searching in the resource or by browsing the assemblies available for a particular organism. The Assembly resource offers users a choice between seeing all assembly versions or only seeing the latest version in each assembly chain. We describe this collection of all versions of an assembly accession as an assembly chain. If the submitter later provides an updated genome assembly, that update has the same assembly accession number and its version is incremented. The first instance of an assembly that is provided by a submitter receives an assembly accession number with version 1. These assembly identifiers allow anyone using them to know whether or not they are working with the same version of an assembly. The full assembly identifier is accession.version, e.g. The assembly accession and version numbers shown in the Assembly resource unambiguously identify the set of sequences in a particular version of an assembly. Assemblies that include scaffolds and contigs.Assemblies that include chromosomes or linkage groups, scaffolds, and contigs.The database represents genomes assembled to different levels: Viral genomes are included if they are in the NCBI Reference Sequence (RefSeq) database or have been selected as viral neighbor genomes by the NCBI viral genomes group ( more details). Similarly, plasmids are only included when they are associated with chromosome sequences. Organelle genomes are included only when there is also a nuclear genome assembly. The Assembly resource includes prokaryotic and eukaryotic genomes with a Whole Genome Shotgun (WGS) assembly, clone-based assembly, or completely sequenced genome (gapless chromosomes). DDBJ, ENA or GenBank, and the assembly represented in the NCBI Reference Sequence (RefSeq) project. It also tracks the relationship between an assembly submitted to the International Nucleotide Sequence Database Collaboration ( INSDC ), i.e. The web resource provides meta-data about assemblies such as assembly names (and alternate names), simple statistical reports of the assembly (type and number of contigs, scaffolds N50s) and a history view of updates. The database provides a versioned Assembly accession number that tracks changes to assemblies as they are updated by submitting groups over time. The Assembly database has information about the structure of assembled genomes as represented in an AGP file or as a collection of completely sequenced chromosomes. Information presented for each assembly.
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