Is the Delta Symbol Relevant in Genotype Terminology?

[rockind78]

Sadly enough, I have never seen a delta symbol in front of a printed genotype. Does this mean anymore than the obvious (obvious being some given changed, unstated, to the genotype)?

 

[nautica]

Delta should mean change.

Nautica

 

[iansmith]

Capital Greek delta is used to designate a deletions of an entire single gene or a large portion of it and it prefix the gene name.