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        Identification and expression patterns of UDP-glycosyltransferase (UGT) genes from insect pest Athetis lepigone (Lepidoptera: Noctuidae)

        Ya-Nan Zhang,Ji-FangMa,Lu Xu,Zhi-PingDong,Ji-Wei Xu,Meng-Ya Li,Xiu-Yun Zhu 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.1

        UDP-glucuronosyltransferase (UGT) genes,which belong to an ancient gene family and play very important roles in all organisms, encode extracellularly secreted proteins that are involved in the transfer of glycosyl residues fromactivated nucleotide sugars to acceptor hydrophobicmolecules (aglycones). Athetis lepigone is an important polyphagous pest worldwide, and since 2011 it has become one of the major maize pests in North China. However, there have been no studies on pesticides for the effective control of this pest. In this study,we identified 23 putative UGT genes in A. lepigone by analysing previous antennal transcriptomic data. Phylogenetic analysis showed that all of the AlUGTs are distributed within 11 of 14 insect UGT sub-families. Tissue expression analysis revealed that N70% of AlUGTs were primarily expressed in adult antennae, of which three (AlUGT33AD1, AlUGT40F6 and AlUGT40L4) and four (AlUGT33B18, AlUGT33F10, AlUGT40Q3 and AlUGT41D3) displayed male-biased and female-biased expression, respectively. SomeAlUGTs, however, had higher expression levels in non-antennal tissues. Our study is the first to identify UGT genes in A. lepigone,which will help us to elucidate the diverse functions of these genes, and ultimately provide potential targets that will facilitate the development of efficient and environmentally friendly pesticides against A. lepigone.

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        Molecular identification and sex distribution of two chemosensory receptor families in Athetis lepigone by antennal transcriptome analysis

        Ya-Nan Zhang,Ji-FangMa,Liang Sun,Zhi-PingDong,Zhao-Qun Li,Xiu-Yun Zhu,YiWang,LuWang,Dao-Gui Deng,Jin-Bu Li 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.3

        Chemosensory receptors play central roles in insect behavior and can potentially be used as new targets for pest control. Athetis lepigoneMöschler (Lepidoptera: Noctuidae) is a polyphagous insect pest found in many countries in Europe and Asia. However, systemic identification of the chemosensory receptors in the antennae has not been reported. In the present study, we obtained the antennal transcriptome of A. lepigone using Illumina sequencing technology and identified 80 candidate chemosensory receptors, including 61 transcripts encoding for odorant receptors (ORs) and 19 for ionotropic receptors (IRs). This result is similar to that reported for other lepidopteran species, suggesting that our approach successfully identified ORs and IRs of A. lepigone. RT-PCR was used to determine the sex distribution patterns of all OR and IR genes. Some OR and IR genes showed male- or femalespecific/ predominant expression. Our results help understand the functions of chemosensory receptor genes in A. lepigone as well as other insects, and suggest that these genes could be potential targets for developing environment-friendly behavioral antagonists and pesticides against A. lepigone.

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