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- 검색키워드
- 저자 : Gui Lian‐You (검색결과 3 건)
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Jian Chen,Fu-Lian Wang,Lian-You Gui,Guo-Hui Zhang 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.1
Bactrocera minax is a destructive citrus pest in China. Owing to the increasing demand for diminishing pesticide applications in orchards, novel and effective control strategies are urgently needed. Odorant binding proteins (OBPs) represent potential targets that can facilitate the creation of environmentally friendly alternatives to the chemical control strategies. However, very little is known concerning OBP genes in B. minax. Here, we obtained seven novel OBP genes (BminOBP1-BminOBP7) from B. minax through a transcriptome analysis. All of them belong to classic OBPs. Subsequently, a phylogenetic tree was generated to characterize the seven OBP genes. Moreover, the tissue expression profiles of these OBP genes were determined by the real-time PCR. The results showed that three OBP genes (BminOBP3, BminOBP6 and BminOBP5) were highly expressed in antennae. The BminOBP3 and BminOBP6 were expressed primarily in antennae. BminOBP3 was male antenna-biased while BminOBP6 was female antenna-biased. The BminOBP5 showed high expression not only in antennae but also in legs. The other four OBP genes were highly expressed in non-olfactory tissues including heads, legs, wings and abdomens. Based on these results, the possible functions of BminOBPs are discussed. The present study provides bases for functional study of these OBPs in B. minax.
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Zhang-Zhang He,Jie Luo,Lian-You Gui,Deng-Ke Hua,Tian-Hua Du,Fu-Lian Wang,Peng Liang,Yong-Fang Shi,Xuan Yang 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3
Previous work reveals that the adult Chinese citrus fly, Bactrocera minax (Enderlein), emerges from the ground in citrus orchards and presumably disperses to alternate food sources in neighboring shrubs and trees, where it stays and becomes reproductively mature, and then later returns to the orchard to lay eggs. We investigated the trajectories of early emerged adult Chinese citrus flies, which were tracked with portable harmonic radar in 2013, 2014, 2015, and 2016 in four different habitats in Hubei province of China that presumably provided food sources for adults. This study we investigated whether early emerged adult Chinese citrus flies migrate into forests. A total of 47 adults were tracked following release in a citrus orchard. Our results showed that a total of 33 adults released in a citrus orchard flew into the forest, and 14 adults that disappeared during the tracking process in the citrus orchard. A total of 10 adults (in 2014) that were tracked and released in the forest flew to the forest. Of the adult flies investigated, 54.5% flew directly into the forest, while the remaining 45.5% finally arrived in the forest after repeatedly adjusting their trajectories. When there were Castanea mollissima Blume (Fagaceae) in the surrounding forest, the proportion of frequency of adult landing on the plant represented 58.3% and 88.5% of landing on all species in 2014 and in 2015, respectively. We conclude that early emerged adult Chinese citrus flies in the mosaic-type citrus orchard of the hilly terrain landform dispersed into adjacent forest.
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Molecular characterization of chemosensory protein genes in Bactrocera minax (Diptera: Tephritidae)
Wang Zhao‐Xiang,Qi Zhen‐hua,Chen Jian,Wang Fu‐Lian,Gui Lian‐You,Zhang Guo‐Hui 한국곤충학회 2021 Entomological Research Vol.51 No.7
Chemoreception is of great importance for survival of insects. Chemosensory proteins (CSPs) are believed to be involved in the perireceptor events of chemosensory system in many insect species, but this has not been clarified in the citrus fruit fly, Bactrocera minax, a serious dipteran pest of citrus crops. Previous studies indicated that four CSP genes were identified in many fly speices in Diptera. In the present study, we also identified four CSP genes in B. minax,namely BminCSP1–4, from a transcriptome database. All CSP proteins encoded by these genes bear the typical hallmarks of the CSP family: an N-terminal signal peptide and the four highly conserved cysteine residues. Phylogenetic analysis comparing with other dipteran CSPs indicated that dipteran CSPs may evolved from three ancestral CSP genes, and revealed the sequence diversities of BminCSPs and showed that BminCSP1–4 are clustered in separate groups, indicating the possibility of their contrasting function in B. minax. Furthermore, the tissue distribution of the four CSP genes in adult B. minax was analyzed by real-time quantitiative PCR. The results demonstrated that BminCSP3 are significantly transcriptionally enriched in antennae; BminCSP4 expressed primarily in heads; BminCSP1 and BminCSP2 showed high expressions in different tissues, such as antennae, abdomens and wings. Based on these findings, the different implications for the functions of BminCSPs are discussed. This study will offer a significant indication for further functional studies of the CSPs in B. minax
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