Genome Browsers

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Genome browsers let you explore DNA sequence graphically. They present sequence on a horizontal axis with a horizontal scroll bar. When zoomed in close, they display the nucleotide sequence. When zoomed out, they display gene models including exons and introns. When zoomed out further, they show histograms of number of features per unit length e.g. genes per mega base pair. They are configured to group features by type in horizontal "tracks" that can each be maximized, minimized, or excluded as screen space allows.

JBrowse

JBrowse

This is a newer tool offering modern user interaction including continuous scroll & zoom and drag & drop. JBrowse is more interactive than GBrowse2 because it renders continuously using javascript inside your browser. JBrowse does not (yet) offer all the display features of GBrowse2, however. JBrowse is an open-source tool supported by the GMOD consortium. Araport intends to increase the number of JBrowse tracks over time.

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GBrowse

GBrowse

This is a traditional tool with many features but limited interaction and incremental screen refresh. All rendering is computed on the server side and sent to your browser as a static image. GBrowse is an open-source tool supported by the GMOD consortium. The GBrowse instance on Araport is displaying data from TAIR version TAIR10. At least initially, Araport omits some older GBrowse tracks.

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