Odorant-Binding Proteins and Chemosensory Proteins from an Invasive Pest Lissorhoptrus oryzophilus (Coleoptera: Curculionidae). Academic Article uri icon


  • The rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), is a serious pest species both in its original distribution region of northern America and its invaded regions of eastern Asia and southern Europe. The odorant-binding proteins (OBPs) and the chemosensory proteins (CSPs) play important roles in host and mate locating, thus might play a significant role in the success of the species as an invader, which has not been characterized yet. We identified 10 OBPs and 5 CSPs in L. oryzophilus and investigated the expression profiles of these genes in various tissues by quantitative real-time PCR. Five classic OBPs were predominantly expressed in the antennae. CSPs were expressed ubiquitously with particularly high transcript levels in antennae, legs, and wings. Three antenna-specific OBPs (LoOBP1, 8, 11) were up-regulated following 1-3 d of food deprivation and down-regulated afterward. These findings suggest most classic OBPs are likely involved in chemoreception whereas CSPs as well as the minus-C OBPs may have broader physiological functions, which in turn may help to understand the molecular aspects of chemical communication in this invasive insect.

published proceedings

  • Environ Entomol

altmetric score

  • 0.25

author list (cited authors)

  • Yuan, X., Jiang, Y., Wang, G., Yu, H., Zhou, W., Liu, S. u., ... Zhu, Z.

citation count

  • 10

complete list of authors

  • Yuan, Xin||Jiang, Yan-Dong||Wang, Gui-Yao||Yu, Hang||Zhou, Wen-Wu||Liu, Su||Yang, Mao-Fa||Cheng, Jiaan||Gurr, Geoff M||Way, Michael O||Zhu, Zeng-Rong

publication date

  • October 2016