Abstract

Organophosphate is the commonly used pesticide to control pest outbreak, such as those by aphids in many crops. Despite its wide use, however, necrotic lesion and/or cell death following the application of organophosphate pesticides has been reported to occur in several species. To understand this phenomenon, called organophosphate pesticide sensitivity (OPS) in sorghum, we conducted QTL analysis in a recombinant inbred line derived from the Japanese cultivar NOG, which exhibits OPS. Mapping OPS in this population identified a prominent QTL on chromosome 5, which corresponded to Organophosphate-Sensitive Reaction (OSR) reported previously in other mapping populations. The OSR locus included a cluster of three genes potentially encoding nucleotide-binding leucine-rich repeat (NB-LRR, NLR) proteins, among which NLR-C was considered to be responsible for OPS in a dominant fashion. NLR-C was functional in NOG, whereas the other resistant parent, BTx623, had a null mutation caused by the deletion of promoter sequences. Our finding of OSR as a dominant trait is important not only in understanding the diversified role of NB-LRR proteins in cereals but also in securing sorghum breeding free from OPS.

Details

Title
NB-LRR-encoding genes conferring susceptibility to organophosphate pesticides in sorghum
Author
Zihuan, Jing 1 ; Fiona, Wacera W 1 ; Takami Tsuneaki 1 ; Takanashi Hideki 2 ; Fukada Fumi 1 ; Kawano Yoji 1 ; Kajiya-Kanegae Hiromi 3 ; Iwata Hiroyoshi 2 ; Tsutsumi Nobuhiro 2 ; Sakamoto Wataru 1 

 Okayama University, Institute of Plant Science and Resources, Kurashiki, Japan (GRID:grid.261356.5) (ISNI:0000 0001 1302 4472) 
 The University of Tokyo, Graduate School of Agricultural and Life Sciences, Bunkyo-ku, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X) 
 National Agriculture and Food Research Organization, Research Center for Agricultural Information Technology, Minato-ku, Japan (GRID:grid.416835.d) (ISNI:0000 0001 2222 0432) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2579464628
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.