Effects of injecting cadherin gene dsRNA on growth and development in diamondback moth Plutella xylostella (Lep.: Plutellidae)

文献类型: 外文期刊

第一作者: Yang, Z. -X.

作者: Yang, Z. -X.;Wu, Q. -J.;Wang, S. -L.;Xu, B. -Y.;Chang, X. -L.;Zhu, G. -R.;Zhang, Y. -J.;Yang, Z. -X.;Wen, L. -Z.

作者机构:

关键词: Plutella xylostella;growth and development;RNA interference

期刊名称:JOURNAL OF APPLIED ENTOMOLOGY ( 影响因子:2.603; 五年影响因子:2.562 )

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收录情况: SCI

摘要: Two laboratory diamondback moth (DBM) strains were used to study the effects of injecting cadherin gene double-stranded RNA (dsRNA) on the growth and development of Plutella xylostella (L.). Specifically, the susceptible strain named DBM.1Ac-S and the low resistant strain DBM.1Ac-R selected with Cry1Ac toxin were studied. The third larvae of the two strains were injected dsRNA of cadherin gene and their corresponding controls, DBM.1Ac-RH and DBM.1Ac-SH, were both injected diethypyrocarbonate (DEPC)-treated water respectively. The basic biological properties such as death rate, hatching ratio, fecundity, weight of pupa and eclosion rate of the strains mentioned above were likewise studied. Meanwhile, the length and width of the egg and pupa were also measured. The results showed that the cadherin gene dsRNA injection resulted in a significant increase of the death rate and sex ratio. On the other hand, hatching ratio, fecundity, weight of pupa, eclosion rate and adult longevity for male and female of treatments decreased compared to their corresponding controls. As such, there was no significant difference on the length of egg and pupa in between treatments and the corresponding controls. However, their width increased inversely with their corresponding controls. Hence, the results suggest that cadherin gene dsRNA injection retarded the larval growth and development of P. xylostella. Also, these results can help reveal the function of cadherin gene through the RNA interference technique.

分类号: Q969.9

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