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Host\u2010seeking behavior involves chemosensory receptor genes that include odorant receptors (ORs), ionotropic receptors (IRs) and gustatory receptors (GRs).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      We used genome and transcriptome data to identify 141 ORs, 28 GRs and 25 IRs in BPH; 135 ORs, 18 GRs and 16 IRs in WBPH; and 37 ORs, 14 GRs and 6 IRs in SBPH. A phylogenetic analysis identified several specific OR clades of rice planthoppers, the results indicating that these OR members might be used to respond to specific host volatiles. OR co\u2010receptor (\n                      <jats:italic>Orco<\/jats:italic>\n                      ) is the most conserved and essential OR gene among these species and RNA interference (RNAi) can decrease their mRNA expression level to &lt;50%. RNAi knockdown rice planthoppers were anosmia and were unable to seek or locate rice plants in behavioral tests.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION<\/jats:title>\n                    <jats:p>\n                      The results demonstrate the importance of the planthopper\n                      <jats:italic>Orco<\/jats:italic>\n                      genes in locating rice plants. This information may aid in the development of RNAi\u2010based transgenic rice and other pest management technologies. \u00a9 2018 Society of Chemical Industry\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ps.4912","type":"journal-article","created":{"date-parts":[[2018,3,15]],"date-time":"2018-03-15T09:44:46Z","timestamp":1521107086000},"page":"2156-2167","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":55,"title":["Molecular characterization and evolution of a chemosensory receptor gene family in three notorious rice planthoppers,\n                    <scp>\n                      <i>Nilaparvata lugens<\/i>\n                    <\/scp>\n                    ,\n                    <scp>\n                      <i>Sogatella furcifera<\/i>\n                    <\/scp>\n                    and\n                    <scp>\n                      <i>Laodelphax striatellus<\/i>\n                    <\/scp>\n                    , based on genome and transcriptome analyses"],"prefix":"10.1002","volume":"74","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2934-0044","authenticated-orcid":false,"given":"Peng","family":"He","sequence":"first","affiliation":[{"name":"State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Huaxi District  Guiyang People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patamarerk","family":"Engsontia","sequence":"additional","affiliation":[{"name":"Molecular Ecology and Evolution Research Unit, Department of Biology, Faculty of Science Prince of Songkla University  Hat Yai Songkhla Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guang\u2010Lei","family":"Chen","sequence":"additional","affiliation":[{"name":"State Key Laboratory Breeding Base of Green 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