Expression of one isoform of GTP cyclohydrolase I coincides with the larval black markings of the swallowtail butterfly, Papilio xuthus.

@article{Futahashi2006ExpressionOO,
  title={Expression of one isoform of GTP cyclohydrolase I coincides with the larval black markings of the swallowtail butterfly, Papilio xuthus.},
  author={Ryo Futahashi and Haruhiko Fujiwara},
  journal={Insect biochemistry and molecular biology},
  year={2006},
  volume={36 1},
  pages={63-70}
}
The larva of the swallowtail butterfly Papilio xuthus changes its body markings during the fourth ecdysis. We found that stage-specific cuticular black markings are mainly regulated by co-localization of two melanin synthesis enzymes; tyrosine hydroxylase (TH) and dopa decarboxylase (DDC). TH converts tyrosine to dihydroxyphenylalanine (dopa), and tyrosine… CONTINUE READING