Comparison of three transgenic Bt rice lines for insecticidal protein expression and resistance against a target pest, Chilo suppressalis (Lepidoptera: Crambidae)
文献类型: 外文期刊
作者: Ke, Kai-Qie;Li, Yun-He;Han, Lan-Zhi;Liu, Yan-Min;Peng, Yu-Fa;Ke, Kai-Qie;Hua, Hong-Xia
作者机构:
关键词: Chilo suppressalis;cry1Ab/Ac;cry1C;cry2A;pest resistance;transgenic rice
期刊名称: INSECT SCIENCE
ISSN: 1672-9609
年卷期: 2016 年 23 卷 1 期
页码:
收录情况: SCI
摘要: Two transgenic rice lines (T2A-1 and T1C-19b) expressing cry2A and cry1C genes, respectively, were developed in China, targeting lepidopteran pests including Chilo suppressalis (Walker) (Lepidoptera: Crambidae). The seasonal expression of Cry proteins in different tissues of the rice lines and their resistance to C. suppressalis were assessed in comparison to a Bt rice line expressing a cry1Ab/Ac fusion gene, Huahui 1, which has been granted a biosafety certificate. In general, levels of Cry proteins were T2A-1 > Huahui 1 > T1C-19b among rice lines, and leaf > stem > root among rice tissues. The expression patterns of Cry protein in the rice line plants were similar: higher level at early stages than at later stages with an exception that high Cry1C level in T1C-19b stems at the maturing stage. The bioassay results revealed that the three transgenic rice lines exhibited significantly high resistance against C. suppressalis larvae throughout the rice growing season. According to Cry protein levels in rice tissues, the raw and corrected mortalities of C. suppressalis caused by each Bt rice line were the highest in the seedling and declined through the jointing stage with an exception for T1C-19b providing an excellent performance at the maturing stage. By comparison, T1C-19b exhibited more stable and greater resistance to C. suppressalis larvae than T2A-1, being close to Huahui 1. The results suggest cry1C is an ideal Bt gene for plant transformation for lepidopteran pest control, and T1C-19b is a promising Bt rice line for commercial use for tolerating lepidopteran rice pests.
分类号:
- 相关文献
作者其他论文 更多>>
-
Herbivore-Induced Rice Resistance Against Rice Blast Mediated By Salicylic Acid
作者:Kang, Hou-Xiang;Li, Yun-He;Chen, Xiu-Ping;Liu, Qing-Song;Peng, Yu-Fa;Liu, Xiao-Mei;Zhang, Kai-Li;Zhang, Kai-Li;Liu, Qing-Song
关键词:Induced Defense; Jasmonic Acid; Plant-Insect-Pathogen Interaction; Rice; Salicylic Acid
-
Safety Assessment Of Bacillus Thuringiensis I.nsecticidal Proteins Cry1C And C ry2A With A Zebrafish Embryotoxicity Test
作者:Chen, Xiu-Ping;Gao, Yan-Jie;Li, Yun-He;Peng, Yu-Fa;Chen, Yi;Zhu, Hao-Jun;Zhu, Hao-Jun;Chen, Yi
关键词:Bt crops; Cry1C; Cry2A; non-target effect; aquatic organism; fish; zebrafish embryo test
-
Rationalizing Governance Of Genetically Modified P.roducts In Developing Countries
作者:Adenle, Ademola A.;Falck-Zepeda, Jose;Kearns, Peter;Komen, John;Li, Yun-He;Morris, E. Jane;Murphy, Denis J.;Phillips, Peter W. B.;Adenle, Ademola A.;Quemada, Hector;Trigo, Eduardo
关键词:
-
Does Bt Maize Expressing Cry1Ac P.rotein Have Adverse Effects O n The Parasitoid Macrocentrus Cingulum (Hymenoptera: Braconidae)?
作者:Cai, Wan-Zhi;Bai, Shu-Xiong;Wang, Zeng-Xia;Wang, Zeng-Xia;Zhang, Tian-Tao;Li, Yun-He;He, Kang-Lai;Wang, Zhen-Ying
关键词:Cry1Ac toxin; ELISA; environmental risk assessment; non-target effects; parasitoids; prey/host quality-mediated effects
-
The effects of Bt Cry1le toxin on bacterial diversity in the midgut of Apis mellifera ligustica (Hymenoptera: Apidae)
作者:Wang, Qiang;Diao, Qing-Yun;Zhou, Ting;Dai, Ping-Li;Jia, Hui-Ru;Geng, Li-Li;Li, Yun-He
关键词:
-
Influence of transgenic rice expressing a fused Cry1Ab/1Ac protein on frogs in paddy fields
作者:Chen, Xiu-Ping;Zhu, Hao-Jun;Peng, Yu-Fa;Wang, Jia-Mei;Zhu, Hao-Jun;Ding, Jia-Tong;Liang, Yu-Yong
关键词:Transgenic rice;Bt protein;Frog;Safety assessment;Non-target effect
-
Tier-1 assays for assessing the toxicity of insecticidal proteins produced by genetically engineered plants to non-target arthropods
作者:Romeis, Joerg;Wu, Kong-Ming;Peng, Yu-Fa;Romeis, Joerg
关键词:sensitive insect bioassay;positive control;Cry protein;artificial diet;ELISA;environmental risk assessment