Equivalence of grain and forage composition in corn hybrid (Zea mays L.) from genetically modified off-patent (event TC1507) and non-genetically modified conventional corn

Q4 Agricultural and Biological Sciences

Agronomia Colombiana Pub Date : 2022-08-11 DOI:10.15446/agron.colomb.v40n2.98948

Hernan Darío Suárez Rodríguez, Diego Andrés Benítez Duarte, A. Chaparro-Giraldo, O. Acosta

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引用次数: 0

Abstract

Off-patent corn (event TC1507) contains genes coding for CRY1F and PAT proteins, which confer resistance to lepidopteran insects and tolerance to the herbicide glufosinate-ammonium. We employed the substantial equivalence approach to investigate the compositional safety of the corn off-patent event (TC1507). The levels of the nutritional contents of proximate analytes in grain and forage tissues of off-patent genotypes of transgenic maize plants and conventional corn genotypes were compared. The levels of the analytes evaluated in the transgenic plants were found to be within the ranges published in the literature for non-transgenic corn and were statistically indistinguishable from the conventional corn from which they are derived (elite corn lines), indicating substantial equivalence between the off-patent (event TC1507) and its conventional counterpart. These results constitute key evidence of the safety evaluation of the world’s first transgenic corn developed from technologies that are in the public domain.

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转基因非专利玉米（事件TC1507）和非转基因常规玉米杂交玉米（Zea mays L.）的谷物和饲料组成的等效性

非专利玉米（事件TC1507）含有编码CRY1F和PAT蛋白的基因，这些蛋白赋予了对鳞翅目昆虫的抗性和对除草剂草膦铵的耐受性。我们采用实质等效方法来研究玉米非专利事件（TC1507）的成分安全性。比较了非专利基因型转基因玉米植株和常规玉米基因型的谷物和饲料组织中近端分析物的营养含量水平。在转基因植物中评估的分析物水平被发现在非转基因玉米的文献中公布的范围内，并且在统计上与它们来源的传统玉米（优良玉米系）没有区别，这表明非专利（事件TC1507）与其传统对应物之间实质上相等。这些结果构成了世界上第一个利用公共领域技术开发的转基因玉米安全性评估的关键证据。

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来源期刊

Agronomia Colombiana Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： Agronomia Colombiana journal it is intended to transfer research results in different areas of tropical agronomy. Original unpublished papers are therefore accepted in the following areas: physiology, crop nutrition and fertilization, genetics and plant breeding, entomology, phytopathology, integrated crop protection, agro ecology, weed science, environmental management, geomatics, biometry, soils, water and irrigation, agroclimatology and climate change, post-harvest and agricultural industrialization, food technology, rural and agricultural entrepreneurial development, agrarian economy, and agricultural marketing (Published: Quarterly).