Homozygotes show a mild reduction in the number of commissural fibers in both anterior and posterior commissures.
2-4 neuromeres lack one commissure in homozygous embryos.
fraC1-62 has larval ventral nerve cord commissure phenotype, enhanceable by IqsecU112
fraC1-62 is an enhancer of larval ventral nerve cord commissure phenotype of IqsecU112