BigWig Track not showing up

[Vishvak2000]

Hello! I am configuring a genome browser for a viral protein and want to add an entropy track. The protein is 400 residues long and I have an entropy track in wig format as follows:

track type=wiggle_0 track type=wiggle_0 name="Entropy_Subtype_C" description="Entropy_C_clade"
fixedStep start=1 chrom=chrS step=1
1.00
1.00
1.00
0.93
...

My chrom.sizes file is as follows:

chrS 400

I am able to succesfully convert it into BigWig format using the UCSC wigToBigWig tool however, when I upload it as a track to JBrowse2, nothing shows up except the y-axis even after ensuring that the xy-renderer is selected.

Any help would be appreciated!

[garrettjstevens]

It looks like your chrome.sizes file uses chrS, but in your screenshot the reference sequence name is pre-S1_pre-S2_S. JBrowse is looking for data for pre-S1_pre-S2_S in your BigWig file and not finding any, so the track is blank.

You can either change your wig file and chrome.sizes file to use pre-S1_pre-S2_S, or you can configure reference name aliasing.

[Vishvak2000]

Changing the name of the chrom referenced in the chrom.sizes file and the wig file worked! Thank you.