Overexpression of cry1c* Enhances Resistance against to Soybean Pod Borer (Leguminivora glycinivorella) in Soybean
文献类型： 外文期刊
作者： Fang, Qingxi 1 ; Cao, Yingxue 2 ; Oo, Thinzar Hla 1 ; Zhang, Chuang 1 ; Yang, Mingyu 1 ; Tang, Yuecheng 1 ; Wang, Meizi 1 ; Zhang, Wu 3 ; Zhang, Ling 4 ; Zheng, Yuhong 4 ; Li, Wenbin 1 ; Meng, Fanli 2 ;
作者机构： 1.Northeast Agr Univ, Coll Agr, Harbin 150030, Peoples R China
2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Harbin 150081, Peoples R China
3.Heilongjiang Acad Agr Sci, Heihe Branch, Heihe 164300, Peoples R China
4.Jilin Acad Agr Sci, China Agr Sci & Technol Northeast Innovat Ctr, Changchun 130033, Peoples R China
关键词： soybean; transgenic soybean; soybean pod borer; cry1c*
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 5 期
页码：
收录情况： SCI
摘要： Soybean [Glycine max (L.) Merr.], an essential staple food and oil crop worldwide, boasts abundant vegetable proteins and fats beneficial for both human and animal consumption. However, the soybean pod borer (Leguminivora glycinivorella) (SPB) stands as the most destructive soybean insect pest in northeast China and other northeastern Asian regions, leading to significant annual losses in soybean yield and economic burden. Therefore, this study aims to investigate the introduction of a previously tested codon-optimized cry1c gene, cry1c*, into the soybean genome and assess its effect on the SPB infestation by generating and characterizing stable transgenic soybeans overexpressing cry1c*. The transgenic soybean lines that constitutively overexpressed cry1c* exhibited a significant reduction in the percentage of damaged seeds, reaching as low as 5% in plants under field conditions. Additionally, feeding transgenic leaves to the larvae of S. exigua, S. litura, and M. separta resulted in inhibited larval growth, decreased larval body weight, and lower survival rates compared to larvae fed on wild-type leaves. These findings showed that the transgenic lines maintained their resistance to SPB and other lepidopteran pests, especially the transgenic line KC1. Southern blotting and genome-wide resequencing analysis revealed that T-DNA integration occurred as a single copy between loci 50,868,122 and 50,868,123 of chromosome 10 in the transgenic line KC1. Therefore, the transgenic line KC1, overexpressing high levels of cry1c* in leaves and seeds, holds strong potential for commercial use in the integrated management of SPB and other lepidopteran pests.
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