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Effects of transgenic cotton carrying Cry1A+CpTI and Cry1Ac genes on diversity of arthropod communities in cotton fields in North China

Published online by Cambridge University Press:  12 February 2007

Li Wei-Di
Affiliation:
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, China Institute of Applied Entomology, Zhejiang University, Hangzhou, 310029, China
Wu Kong-Ming
Affiliation:
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, China
Chen Xue-Xin*
Affiliation:
Institute of Applied Entomology, Zhejiang University, Hangzhou, 310029, China
Feng Hong-Qiang
Affiliation:
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, China
Xu Guang
Affiliation:
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, China
Guo Yu-Yuan
Affiliation:
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, China
*
*Corresponding author. E-mail: [email protected]

Abstract

The effects of insect-resistant transgenic cotton on the diversity of arthropod communities in cotton fields in North China were investigated during 2000–2001. The field experiments were conducted in non-insecticide treated plots of transgenic cotton lines (SGK321, a transgenic cotton variety carrying Cry1A+CpTI genes; GK12, a transgenic cotton variety carrying the Cry1Ac gene) and their conventional parent varieties (Shiyuan 321 and Shimian 3, respectively), and in sprayed plots of the parent varieties where pyrethroid insecticides were used regularly against the cotton bollworm. All the arthropods were sucked up using a portable suction device and identified to species wherever possible. They were later sorted into guilds (pests, natural enemies and neutral arthropods) for diversity analysis using the method of Shannon's index. The diversity of arthropod communities in transgenic cotton plots was similar to that in conventional cotton fields without spraying, but Shannon's index for total arthropod community and the neutral arthropod guild in Bt cotton fields were significantly higher than those in sprayed plots in the mid and late growing stages of cotton. It is concluded that planting of Bt cotton could increase the stability of arthropod communities in cotton ecological systems and benefit the management of insect pests in cotton.

Type
Research Article
Copyright
Copyright © China Agricultural University and Cambridge University Press 2004

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References

Cui, J-J, Xia, J-Y (2000) Studies on the components of diversity of the community in transgenic Bt cotton. Acta Ecologica Sinica 20: 824829 (in Chinese with English abstract).Google Scholar
Fitt, GP (1994) Field evaluation of transgenic cottons in Australia: environmental considerations and consequences of expanding trial size. In: Jones DD (editor) Proceedings of the 3rd International Symposium on Biosafety Results of Field Tests of Genetically Modified Plants and Microorganisms. Oakland, CA: The University of California, pp. 3748.Google Scholar
Guo, S-D, Cui, H-Z, Xia, L-Q et al. (1999) Development of bivalent insect-resistant transgenic cotton plants Scientia Agricultura Sinica 32:(3) 17. (in Chinese with English abstract).Google Scholar
Pilcher, CD, Obrycki, JJ, Rice, ME et al. ,(1997) Preimaginal development, survival, and field abundance of insect predators on transgenic Bacillus thuringiensis corn. Environmental Entomology 26: 446454.CrossRefGoogle Scholar
Pray, C, Huang, J, Ma, D et al. , (2001) Impact of Bt cotton in China. World Development 29: 813825.CrossRefGoogle Scholar
Riggin-Bucci, TM and Gould, F (1997) Impact of intraplot mixtures of toxic and nontoxic plants on population dynamics of diamondback moth (Lepidoptera: Plutellidae) and its natural enemies. Journal of Economic Entomology 90: 241251.CrossRefGoogle Scholar
Shun, R-Y (2001) Principles of Animal Ecology. Beijing: Beijing Teachers University Press (in Chinese).Google Scholar
van Tol, NB, Lentz, GL, Dugger, P et al. ,(1998) Influence of Bt cotton on beneficial arthropod populations. In: Dugger, P and Richter, D (editors) Proceedings of Beltwide Cotton Conferences, Cotton Insect Research and Control Conference San Diego, CA: National Cotton Council of America, 10521054.Google Scholar
Wang, C-Y and Xia, J-Y (1997) Difference of population dynamics of cotton bollworm and main natural enemies in Bt transgenic cotton and conventional cotton fields China Cottons 24(6) 1315. (in Chinese)Google Scholar
Wang, W-G, Wu, K-M, Liang, G-M et al. ,(1999) Occurrence of cotton pests in the Bt cotton fields and its control strategy. Plant Protection 25: 35. (in Chinese with English abstract)Google Scholar
Wilson, FD, Flint, HM, Deaton, WR et al. ,(1992) Resistance of cotton lines containing a Bacillus thuringiensis toxin to pink bollworm (Lepidoptera: Gelechidae) and other insects. Journal of Economic Entomology 85: 15161521.CrossRefGoogle Scholar
Wu, K-M (2001) Occurrence of cotton pests in Bt transgenic cotton fields and their control techniques In: Jia, S-R, Guo, S-D and An, D-C (editors) Transgenic Cotton. Beijing: Science Press, pp.218224(in Chinese).Google Scholar
Wu, K-M, Ji, H-Q (1989) Influence of cotton IPM on community of natural enemies. Natural Enemies of Insects 11: 151155. (in Chinese with English abstract)Google Scholar
Wu, K-M, Guo, Y-Y and Wang, W-G (2000) Field resistance evaluations of Bt transgenic cotton GK to cotton bollworm. Acta Phytophylacica Sinica (Journal of Plant Protection) 27: 317321. (in Chinese with English abstract)Google Scholar
Zhang, Y-J, Wu, K-M and Guo, Y-Y (2001) On the spatio-temporal expression of the contents of Bt insecticidal protein and the resistance of Bt transgenic cotton to bollworm. Acta Phytophylacica Sinica (Journal of Plant Protection) 28: 16. (in Chinese with English abstract)Google Scholar