B, C The BWM-specific RNAi against myrf-2 improves sarcomere in the worms at day 8 of adulthood. Arrowheads and arrows respectively denote the gaps of myofilaments and the disorganised myofilaments with GFP aggregations. Scale Bar: 10 μm. Mean ± SD. Unpaired t-test, two-tailed. n>=50. 