Description
This track shows the differences between the GRCh37 (hg19) and previous NCBI Build 36 (hg18)
human genome assemblies, indicating contigs (or portions of contigs) that are new
to the hg19 assembly.
The following color/score key is used:
| color | score | change from hg18 to hg19 |
|---|
| | 0 | New contig added to hg19 to
update sequence or fill gaps present in hg18 |
| | 500 | Different portions of this
same contig used in the construction of hg19 and hg18 assemblies |
| | 1000 | Updated version of
an hg18 contig in which sequence errors have been corrected |
Use the score filter to select which categories to show in the display.
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.
|