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Nanocarrier-delivered dsRNA suppresses wing development of green peach aphids.

Yun-Hui ZhangZhong-Zheng MaHang ZhouZi-Jian ChaoShuo YanJie Shen
Published in: Insect science (2021)
RNA interference (RNAi) has developed rapidly as a potential "green" pest management strategy. At present, most studies have focused on the screening of aphid lethal genes, whereas only a few studies have been conducted on wing development, which is crucial for aphid migration and plant-virus dissemination. Here, the Myzus persicae genes vestigial (vg) and Ultrabithorax (Ubx) related to wing development, were cloned. These two genes were expressed in various tissues of 3rd-instar winged aphids. The mRNA level of vg was high in 3rd-instar nymphs, whereas the expression level of Ubx was high in adults. The nanocarrier-mediated delivery system delivered double-stranded RNAs for aphid RNAi using topical and root applications. The expression levels of vg and Ubx were downregulated by 44.0% and 36.5%, respectively, using the topical application. The simultaneous RNAi of the two target genes caused 63.3% and 32.2% wing aberration rates using topical and root applications, respectively. The current study provided a promising method for controlling aphid migration to alleviate the spread of insect transmitted plant diseases.
Keyphrases
  • genome wide
  • poor prognosis
  • bioinformatics analysis
  • genome wide identification
  • binding protein
  • drug delivery
  • gene expression
  • dna methylation
  • genome wide analysis
  • wound healing
  • case control
  • zika virus
  • cell wall