<p>The assembly of the whole genome sequences revealed varying SNPs throughout the chromosome. One confirmed difference between the previously sequenced 81-176 and 81-176/55 (as well as the opaque and translucent progeny) was the presence of a 69 bp deletion in the intergenic region between <i>hup</i> and <i>cysK</i>. An incomplete direct repeat (IDR) bracketing the deletion is indicated.</p