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Horizontally transferred salivary protein promotes insect feeding by suppressing ferredoxin-mediated plant defenses

Mol Biol Evol .. 2023-10; 
Yi-Zhe Wang , Yu-Xuan Ye , Jia-Bao Lu , Xin Wang , Hai-Bin Lu , Ze-Long Zhang , Zhuang-Xin Ye , Yu-Wen Lu , Zong-Tao Sun , Jian-Ping Chen , Jun-Min Li , Chuan-Xi Zhang , Hai-Jian Huang
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Catalog Antibody The supernatant was then incubated with 20 μl anti-Flag beads (#L00432-1, GenScript, Nanjing, China) for 4 h at 4°C./The MmFTSP-like sequence (XM_025496291) used in this study was synthesized via the custom service of GenScript Company (Nanjing, China). Get A Quote

摘要

Herbivorous insects such as whiteflies, planthoppers, and aphids secrete abundant orphan proteins to facilitate feeding. Yet, how these genes are recruited and evolve to mediate plant-insect interaction remains unknown. In this study, we report a horizontal gene transfer (HGT) event from fungi to an ancestor of Aleyrodidae insects approximately 42-190 million years ago. BtFTSP1 is a salivary protein that is secreted into host plants during Bemisia tabaci feeding. It targets a defensive ferredoxin 1 in Nicotiana tabacum (NtFD1) and disrupts the NtFD1-NtFD1 interaction in plant cytosol, leading to the degradation of NtFD1 in a ubiquitin-dependent manner. Silencing BtFTSP1 has negative effects on B. tabaci feeding... More

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