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Table 2 Successful cases of plant mediated RNAi in different cotton pests

From: Insect resistance management in Bacillus thuringiensis cotton by MGPS (multiple genes pyramiding and silencing)

Insect order

Target insect

Target genes

RNAi Plant

Effects of RNAi on the target insect

References

Lepidoptera

H. armigera

Cytochrome450 monooxygenase CTP6AE14

Cotton

The larval growth and leaf consumption decreased 61% and 39%, respectively

Mao et al. 2011

 

cytochrome P450 CYP6AE14

A. thaliana, N. tabacum, G. hirsutum

Retarded larval growth and the effects are more dramatic in the presence of gossypol

Mao et al. 2007

 

3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR)

Cotton

Impairing the development and survival of larvae

Tian et al. 2015

 

HaHR3

Cotton

Higher larval mortality and deformities of pupation and adult eclosion

Han et al. 2017

 

chitinase

Tobacco

0–33% of larval mortality for various RNAi tobacco lines

Reddy and Rajam 2016

 

chitinase

Tomato

2%–45% of larval mortality for various RNAi tomato lines

Reddy and Rajam 2016

 

JHAMT

Tomato

Reduction in larval and pupal weight, abnormal metamorphosis

Maligeppagol et al. 2017

Hemiptera

Bemisia tabaci

v-ATPase

Transgenic lettuce

84%–98% mortality, 95-fold

lower fecundity

Ibrahim et al. 2017

 

aquaporin and alpha glucosidase

N. tabacum

78% mortality

Raza et al. 2016

 

acetylcholinesterase and ecdysone receptor

N. tabacum

90% mortality

Malik et al. 2016

Hemiptera

Phenacoccus solenopsis Tinsley

Bursicon and V-ATPase

N. tabacum

Mortality, delayed development, deformed individuals, with squeezed body and irregular fragile cuticle

Khan et al. 2018a