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RISS 인기검색어
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- 저자 : Dong Shuanglin (검색결과 4 건)
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Li Shengyun,Chen Song,Dong Shuanglin,Zhang Min,Deng Zhongyuan,Ni Xinzhi,Huang Jinyong,Li Xianchun 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.3
The enrichment of transposable elements (TEs) within allelochemical- and insecticide-metabolizing P450 alleles in Helicoverpa zea enables these P450s to gain TE-introduced adaptive variations otherwise not readily available to cope with the ever-changing and diverse xenobiotic stress factors in varying cropping systems. The critical role of each TE-inserted P450 allele depends on whether the inserted P450 allele is more adaptive than its TE-free counterpart or not. Previous study has reported a HzSINE1-inserted CYP321A2 allele in a laboratory strain of H. zea reared with xenobiotic-free artificial diets. Here we show that the HzSINE1-inserted CYP321A2 allele transcribes into two HzSINE1 sequence-containing mutant mRNA isoforms of different length that encode an identical C terminus-truncated and heme-binding region deleted non-functional P450. Nonetheless, HzSINE1 insertion does not disrupt the regulatory functional aspect of CYP321A2 since this allele is constitutively expressed and highly inducible by the allelochemicals xanthotoxin, quercetin and chlorogenic acid. Furthermore, while the HzSINE1-inserted CYP321A2 allele is fixed in the laboratory strain, the insertion is purged in the bifenthrin-resistant strain and the Georgia field population of H. zea. To sum up, the HzSINE1-inserted CYP321A2 allele represents an allelochemical-inducible non-functional P450 allele that is selected against in the field populations frequently encountering toxic plant allelochemicals and synthetic insecticides. However, such an insertion can reach fixation under the xenobiotic-free laboratory rearing conditions most likely due to random genetic drift across multiple generations.
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Zhang Yun-Ying,Guo Jin-Meng,Wei Zhi-Qiang,Zhang Xiao-Tong,Liu Si-Ruo,Guo Hui-Fang,Dong Shuanglin 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.3
To better understand the olfactory mechanism of Mythimna loreyi, a worldwide migratory pest, we for the first time conducted a large scale identification of olfactory-related genes and investigation of their sex expression profiles by transcriptomic analysis. A total of 42,832 unigenes were obtained by transcriptome sequencing, as sembly and annotation, with an average length of 1,229 bp and N50 of 2,086 bp. In particular, 138 olfactoryrelated genes were identified by homologous blasting, including 33 odorant binding proteins (OBPs), 16 che mosensory proteins (CSPs), 63 odorant receptors (ORs), 24 ionotropic receptors (IRs) and two sensory neuron membrane proteins (SNMPs). Further, by using differential gene expression (DGE) and fragments per kilobase per million fragments (FPKM) values to compare the transcript levels between female and male antennae, we found that 22 olfactory-related genes (9 OBPs, one CSP and 12 ORs) were sex biased, with 10 genes being male biased and 12 genes female biased. In addition, sex and tissue expression profiles determined by qPCR of 15 selected genes confirmed the reliability of sex expression profiles obtained by the transcriptomic analysis, and demonstrated that most olfactory-related genes were specifically or primarily expressed in antennae, suggesting their roles in olfaction, while a few genes were highly expressed in other tissues, implying their non-olfaction functions. This study provides an important basis for further functional study of olfactory genes in M. loreyi.
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Zhang Yun-Ying,Guo Jin-Meng,Wei Zhi-Qiang,Zhang Xiao-Tong,Liu Si-Ruo,Guo Hui-Fang,Dong Shuanglin 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.2
To better understand the olfactory mechanism of Mythimna loreyi, a worldwide migratory pest, we for the first time conducted a large scale identification of olfactory-related genes and investigation of their sex expression profiles by transcriptomic analysis. A total of 42,832 unigenes were obtained by transcriptome sequencing, as sembly and annotation, with an average length of 1,229 bp and N50 of 2,086 bp. In particular, 138 olfactoryrelated genes were identified by homologous blasting, including 33 odorant binding proteins (OBPs), 16 che mosensory proteins (CSPs), 63 odorant receptors (ORs), 24 ionotropic receptors (IRs) and two sensory neuron membrane proteins (SNMPs). Further, by using differential gene expression (DGE) and fragments per kilobase per million fragments (FPKM) values to compare the transcript levels between female and male antennae, we found that 22 olfactory-related genes (9 OBPs, one CSP and 12 ORs) were sex biased, with 10 genes being male biased and 12 genes female biased. In addition, sex and tissue expression profiles determined by qPCR of 15 selected genes confirmed the reliability of sex expression profiles obtained by the transcriptomic analysis, and demonstrated that most olfactory-related genes were specifically or primarily expressed in antennae, suggesting their roles in olfaction, while a few genes were highly expressed in other tissues, implying their non-olfaction functions. This study provides an important basis for further functional study of olfactory genes in M. loreyi.
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Hou Jing-Hao,He Yu,Ma Yu,Guo Jin-Meng,Wei Zhi-Qiang,Yan Qi,Zhang Jin,Dong Shuanglin 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Some chemosensory genes are found to be expressed specifically or highly in the male reproductive system, suggesting their importance in male reproductive physiology. In this paper, we identified chemosensory genes expressed in the male reproductive system of the moth pest Spodoptera exigua by transcriptome and proteome sequencing, and further determined expression patterns of these genes regarding antennae and different tissues of the male reproductive system (testes, vas deferens, seminal vesicles, ejaculatory ducts, male accessory glands) by the real-time quantitative PCR (qPCR). Transcriptome analysis showed that 46 chemosensory genes were expressed in the male reproductive system of S. exigua, including 18 odorant binding proteins (OBPs), 12 che mosensory proteins (CSPs), 10 odorant receptors (ORs) and 6 other chemosensory genes. Further qPCR mea surements revealed that 14 chemosensory genes were expressed specifically or highly in the male reproductive tissues, relative to that in male antennae. Of the 14 genes, OBP17, OBP22, OBP27 and GR43 were specifically expressed in the testes; OBP20 was specifically expressed in the vas deferens; and PBP4 was specifically expressed in the male accessory glands. In addition, proteome data of the spermatophore confirmed that at least 4 OBPs and one CSP were transmitted from males to females, suggesting their function in the reproductive physiology of mated females. The results provide insights into the functional diversity of chemosensory genes, and bases for exploring functions of these chemosensory genes in male reproductive physiology.
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