Transgenic cotton: harboring broad term resistance against insect and weeds through incorporation of CEMB DOUBLE Bt and cp4EPSPS genes. | [Pakistan Journal of Agricultural Sciences • 2016]

Author(s):

1. Mudassar Fareed Awan: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

2. Arfan Ali: Centre of Excellence in Molecular Biology(CEMB) University of the Punjab, Lahore, Pakistan; Institute of Molecular Biology and Biotechnology, The University of Lahore, Pakistan

3. Adnan Muzaffar: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

4. Malik Adil Abbas: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

5. Abdul Qayyum Rao: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

6. Zahida Qamar: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

7. Shahid Javed Butt: University of Management and Technology, Sialkot Campus, Sialkot, Pakistan

8. Ghazanfar Ali Khan: Development and planning wing, Department of Agriculture Punjab Lahore, Pakistan

9. Bushra Rashid: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

10. Idrees Ahmad Nasir: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

11. Tayyab Husnain: Centre of Excellence in Molecular Biology(CEMB), University of the Punjab, Lahore, Pakistan

Abstract:

Introduction of multiple traits in crop plants for desirable character is an essential tool of Biotechnological application. To overcome problem of insect pests and weeds cotton variety FBS-37 was genetically modified by transformation of CEMB Cry1Ac+Cry2A and GTGene cloned in different plant expression vectors under CaMV35S Promoter and nopaline synthase Nos Terminator. CEMB optimized protocol of cotton gene transformation i.E. Agrobacterium mediated shoot apex cut method was applied for transformation of these genes constructs in cotton. Overall transformation efficiency was found to be 1.05%. Putative transgenic cotton plants were shifted to soil pots and acclimatized in the green house conditions. PCR with gene specific primers amplified 190bp for EPSPS (Glyphosate GTG) and 1000bp for each of Cry1Ac and Cry2A. Quantification of Cry1Ac, Cry2A and GTG protein through ELISA determined maximum of 0.8µg/G, 1µg/G and 0.9µg/G of tissue respectively. 100% mortality was obtained in 2 nd instar larvae of Heliothus armigera when compared with non-transgenic control cotton plants where maximum damaged was seen in leaf bioassay. Moreover, transgenic cotton plants successfully survived when sprayed with 1600ml/acre of glyphosate as compared to control where 100% mortality and necrosis occur after 7 days of spray assay in control conditions.

Page(s): 501-505

DOI: DOI not available

Published: Journal: Pakistan Journal of Agricultural Sciences, Volume: 53, Issue: 3, Year: 2016

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