Abstract

For decades, the American palm weevil (APW), Rhynchophorus palmarum, has been a threat to coconut and oil palm production in the Americas. It has recently spread towards North America, endangering ornamental palms, and the expanding date palm production. Its behavior presents several parallelisms with a closely related species, R. ferrugineus, the red palm weevil (RPW), which is the biggest threat to palms in Asia and Europe. For both species, semiochemicals have been used for management. However, their control is far from complete. We generated an adult antennal transcriptome from APW and annotated chemosensory related gene families to obtain a better understanding of these species' olfaction mechanism. We identified unigenes encoding 37 odorant-binding proteins (OBPs), ten chemosensory proteins (CSPs), four sensory neuron membrane proteins (SNMPs), seven gustatory receptors (GRs), 63 odorant receptors (ORs), and 28 ionotropic receptors (IRs). Noticeably, we find out the R. ferrugineus pheromone-binding protein and pheromone receptor orthologs from R. palmarum. Candidate genes identified and annotated in this study allow us to compare these palm weevils' chemosensory gene sets. Most importantly, this study provides the foundation for functional studies that could materialize as novel pest management strategies.

Details

Title
Antennal transcriptome sequencing and identification of candidate chemoreceptor proteins from an invasive pest, the American palm weevil, Rhynchophorus palmarum
Author
Gonzalez, Francisco 1 ; Jibin, Johny 2 ; Walker, William B, III 3 ; Guan Qingtian 4 ; Mfarrej Sara 4 ; Jakše Jernej 5 ; Montagné Nicolas 6 ; Jacquin-Joly Emmanuelle 6 ; Alqarni, Abdulaziz A 2 ; Al-Saleh, Mohammed Ali 2 ; Pain Arnab 4 ; Antony Binu 2   VIAFID ORCID Logo 

 King Saud University, Chair of Date Palm Research, Center for Chemical Ecology and Functional Genomics, Department of Plant Protection, College of Food and Agricultural Sciences, Riyadh, Saudi Arabia (GRID:grid.56302.32) (ISNI:0000 0004 1773 5396); ChemTica Internacional S.A., Department of Research and Development, Santo Domingo, Costa Rica (GRID:grid.56302.32) 
 King Saud University, Chair of Date Palm Research, Center for Chemical Ecology and Functional Genomics, Department of Plant Protection, College of Food and Agricultural Sciences, Riyadh, Saudi Arabia (GRID:grid.56302.32) (ISNI:0000 0004 1773 5396) 
 Swedish University of Agricultural Sciences, Department To Plant Protection Biology, Alnarp, Sweden (GRID:grid.6341.0) (ISNI:0000 0000 8578 2742) 
 King Abdullah University of Science and Technology (KAUST), BESE Division, Thuwal, Saudi Arabia (GRID:grid.45672.32) (ISNI:0000 0001 1926 5090) 
 University of Ljubljana, Biotechnical Faculty, Agronomy Department, Ljubljana, Slovenia (GRID:grid.8954.0) (ISNI:0000 0001 0721 6013) 
 Institute of Ecology and Environmental Sciences of Paris, iEES-Paris, INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université de Paris, Versailles, France (GRID:grid.462350.6) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2513091858
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.