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Feeding regulation by neuropeptide Y on Asian corn borer Ostrinia furnacalis
Author(s) -
Yue Zhen,
Zhao Zhangwu
Publication year - 2017
Publication title -
archives of insect biochemistry and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.576
H-Index - 66
eISSN - 1520-6327
pISSN - 0739-4462
DOI - 10.1002/arch.21396
Subject(s) - ostrinia furnacalis , biology , midgut , complementary dna , ostrinia , neuropeptide y receptor , pest analysis , neuropeptide , larva , instar , gene , lepidoptera genitalia , botany , biochemistry , receptor , pyralidae
The Asian Corn Borer Ostrinia furnacalis is a major agricultural pest. In this study, a full‐length neuropeptide Y ( npy ) gene in O. furnacalis was sequenced and cloned from cDNA library, which contains an ORF of 273 bp by encoding 90 amino acid residues. The mature Ofur NPY is composed of 29 amino acids with amidation in C‐terminal. The spatiotemporal expression analysis showed that npy highest expression level was in the midgut of the fifth instar larvae (the gluttony period). When the expression of npy was knocked down by feeding or injecting dsNPY, larval food consumption, body size, and body weight were significantly inhibited compared to controls. These results indicate that NPY is an important regulator in the control of feeding of O. furnacalis .