Hg19 Diff Track Settings
 
Contigs New to GRCh38/(hg38), Not Carried Forward from GRCh37/(hg19)   (All Mapping and Sequencing tracks)

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Data last updated: 2013-12-31

Description

This track shows the differences between the GRCh38 (hg38) and previous GRCh37 (hg19) human genome assemblies, indicating contigs (or portions of contigs) that are new to the hg38 assembly.

The following color/score key is used:

colorscorechange from hg19 to hg38
 0New contig added to hg38 to update sequence or fill gaps present in hg19
 500Different portions of this same contig used in the construction of hg38 and hg19 assemblies
 1000Updated version of an hg19 contig in which sequence errors have been corrected

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Methods

The contig coordinates were extracted from the AGP files for both assemblies. Contigs that matched the same name, same version, and the same specific portion of sequence in both assemblies were considered identical between the two assemblies and were excluded from this data set. The remaining contigs are shown in this track.

Credits

The data and presentation of this track were prepared by Hiram Clawson, UCSC Genome Browser engineering.