ABSTRACT

The field study was undertaken to examine the potential for adverse effects of transgenic soybean expressing bioactive human epidermal growth factor (with tolerance to the herbicide glufosinate, PPT) on the abundance and diversity of plant‐dwelling arthropods by comparing with those of a non‐GM parental cultivar, Gwangan soybean. Field surveys of soybean fields were carried out over two consecutive years, 2016 and 2017 at Ochang and Jeonju, Korea. The number of captured individuals associated with either of EGF and Gwangan soybean plants increased in 2017 compared with 2016 in both Ochang and Jeonju. During the survey period, the diversity and richness of the occurred insects and arachnids increased, dominance decreased, and the evenness of the insects remained static. The insects of Hymenoptera Order occurred most often comprised 25.4% of total captured insect pests. On the contrary, natural enemy from Hymenoptera Order and other insects from Diptera Order occurred more frequently (29.9% and 19.0%, respectively) in both the survey regions during the study periods. The score from PROXSCAL multidimensional scaling using combined data showed that the occurrence of insects and arachnids were separated due to their cultivation regions and years, irrespective of soybean cultivars. Consequently, the results indicated that there happened no notable change in the composition of arthropod communities in soybean agroecosystem due to GM event in soybean expressing EGF.

摘要

通过与非转基因大豆的比较，进行了田间研究，以检验表达生物活性人表皮生长因子（对除草剂草铵膦 PPT 具有耐受性）的转基因大豆对植物节肢动物的丰度和多样性的潜在不利影响亲本品种广安大豆。2016 年和 2017 年连续两年在韩国梧仓和全州进行了大豆田实地调查。与 2016 年相比，在 Ochang 和全州，2017 年与 EGF 和 Gwangan 大豆植物相关的捕获个体数量均有所增加。调查期间，发生的昆虫和蛛形纲动物的多样性和丰富度增加，优势度降低，昆虫的均匀度保持不变。最常见的膜翅目昆虫有 25 种。占总捕获害虫的 4%。相反，在研究期间，两个调查区域的膜翅目天敌和双翅目其他昆虫出现频率更高（分别为 29.9% 和 19.0%）。使用组合数据的 PROXSCAL 多维尺度评分表明，昆虫和蛛形纲动物的出现因其栽培地区和年份而不同，与大豆品种无关。因此，结果表明，在表达EGF的大豆中，由于转基因事件，大豆农业生态系统中节肢动物群落的组成没有发生显着变化。使用组合数据的 PROXSCAL 多维尺度评分表明，昆虫和蛛形纲动物的出现因其栽培地区和年份而不同，与大豆品种无关。因此，结果表明，在表达EGF的大豆中，由于转基因事件，大豆农业生态系统中节肢动物群落的组成没有发生显着变化。使用组合数据的 PROXSCAL 多维尺度评分表明，昆虫和蛛形纲动物的出现因其栽培地区和年份而不同，与大豆品种无关。因此，结果表明，在表达EGF的大豆中，由于转基因事件，大豆农业生态系统中节肢动物群落的组成没有发生显着变化。