The mRNA level of UNC-31 was up-regulated by about 20% in mir-71
(lf). The nuclear-localized GFP expression under the control of the 3UTR of unc-31was
strongly repressed in the control worms, but prominently derepressed in mir-71
(lf) mutant worms. These results suggest that miR-71 regulates the expression of unc-31
through their 3UTRs.