Welcome To Website IAS

Hot news

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)


- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Website links
Vietnamese calendar
Visitors summary
 Curently online :  9
 Total visitors :  4971994

Pyramiding Bt Genes for Increasing Insect Resistance of Cotton
Wednesday, 2014/08/13 | 08:03:53

To improve insect pest resistance of cotton, scientists at Huazhong Agricultural University in China used gene stacking strategy. First, they introduced Cry9C from Bacillus thuringiensis into cotton (cultivar Simian-3) through Agrobacterium-mediated transformation. The intergration and expression of the gene were confirmed by PCR and RT-PCR. The transgenic plants exhibited moderate toxicity to cotton bollworm (Heliothis armigera) but strong toxicity to cotton leafworm (Spodoptera litura) compared with the transgenic plants expressing Cry 1Ac. Then they pyramided Cry9C gene and Cry 2A or Cry 1Ac, respectively by sexual crossing.


Results showed that the expression of Cry9C protein in the progenies of the first generation had a similar level as the parent plants indicating the high heritability of Bt genes. Progenies from both Cry9CxCry 2A and Cry9CxCry 1Ac showed better resistance to cotton leafworm than their parents. Based on the results, successful incorporation of gene pyramiding technology can provide a new solution of developing multiple resistance management strategies.


Get a copy of the paper at http://link.springer.com/article/10.1007/s11738-014-1642-5.

Back      Print      View: 568

[ Other News ]___________________________________________________
  • Beyond genes: Protein atlas scores nitrogen fixing duet
  • 2016 Borlaug CAST Communication Award Goes to Dr. Kevin Folta
  • FAO and NEPAD team up to boost rural youth employment in Benin, Cameroon, Malawi and Niger
  • Timely seed distributions in Ethiopia boost crop yields, strengthen communities’ resilience
  • Parliaments must work together in the final stretch against hunger
  • Empowering women farmers in the polder communities of Bangladesh
  • Depression: let’s talk
  • As APEC Concludes, CIP’s Food Security and Climate Smart Agriculture on Full Display
  • CIAT directly engages with the European Cocoa Industry
  • Breeding tool plays a key role in program planning
  • FAO: Transform Agriculture to Address Global Challenges
  • Uganda Holds Banana Research Training for African Scientists and Biotechnology Regulators
  • US Congress Ratifies Historic Global Food Security Treaty
  • Fruit Fly`s Genetic Code Revealed
  • Seminar at EU Parliament Tackles GM Crops Concerns
  • JICA and IRRI ignites a “seed revolution” for African and Asian farmers
  • OsABCG26 Vital in Anther Cuticle and Pollen Exine Formation in Rice
  • Akira Tanaka, IRRI’s first physiologist, passes away
  • WHO calls for immediate safe evacuation of the sick and wounded from conflict areas
  • Farmer Field School in Tonga continues to break new ground in the Pacific for training young farmers


Designed & Powered by WEBSO CO.,LTD