CRISPR/Cas9 mutagenesis abolishes odorant-binding protein BdorOBP56f-2 and impairs the perception of methyl eugenol in Bactrocera dorsalis (Hendel)

2021 ◽  
Vol 139 ◽  
pp. 103656
Author(s):  
Xiaofeng Chen ◽  
Yibo Lei ◽  
Hongfei Li ◽  
Li Xu ◽  
Hui Yang ◽  
...  
2020 ◽  
Vol 8 ◽  
Author(s):  
Zhao Liu ◽  
Xiao-Fei Liang ◽  
Li Xu ◽  
Ian W. Keesey ◽  
Zhong-Ren Lei ◽  
...  

1990 ◽  
Vol 265 (11) ◽  
pp. 6118-6125
Author(s):  
J Pevsner ◽  
V Hou ◽  
A M Snowman ◽  
S H Snyder

Author(s):  
Ran Wang ◽  
Yuan Hu ◽  
Peiling Wei ◽  
Cheng Qu ◽  
Chen Luo

Abstract Odorant binding proteins (OBPs) of insects play a critical role in chemical perceptions and choice of insect host plant. Bemisia tabaci is a notorious insect pest which can damage more than 600 plant species. In order to explore functions of OBPs in B. tabaci, here we investigated binding characteristics and function of odorant-binding protein 3 in B. tabaci (BtabOBP3). The results indicated that BtabOBP3 shows highly similar sequence with OBPs of other insects, including the typical signature motif of six cysteines. The recombinant BtabOBP3 protein was obtained, and the evaluation of binding affinities to tested volatiles of host plant was conducted, then the results indicated that β-ionone had significantly higher binding to BtabOBP3 among other tested plant volatiles. Furthermore, silencing of BtabOBP3 significantly altered choice behavior of B. tabaci to β-ionone. In conclusion, it has been demonstrated that BtabOBP3 exerts function as one carrier of β-ionone and the results could be contributed to reveal the mechanisms of choosing host plant in B. tabaci.


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