To evaluate cardiac function following PolyQ-induced cardiomyopathy, we obtained Drosophila transgenic lines [5] expressing enhanced-GFP-tagged control or mutant Htt fragments (UAS-Httex1-QneGFP) with different PolyQ repeat lengths (Q25, Q46, Q72, and Q103). The gene discussed is HTT; the disease is cardiomyopathy.