For a long answer you'll need to wait for an expert; for a TL;DR: No.

Number of unique genes/quantity of meaningful DNA is ... more correlated to complexity (but also not that simple) but chromosome number can be ‘messed with’ just by having the same genetic material split into smaller chromosomes, with no effect on the organism's genetic makeup, so the number doesn't matter at all.

(See Wikipedia on microchromosomes for an example, relevant in that exotic creature, ‘chicken’.)