Behavior of soybean genotypes transformed with the AHAS gene which confers tolerance to the herbicide imazapyr

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2004-09-30 DOI:10.12702/1984-7033.V04N03A01

Tammy Aparecida, Manabe Kiihl, C. Arias

引用次数: 1

Abstract

The transformation of the soybean cultivars BR-16 and Doko with the AHAS gene resulted in the development of imazapyr-tolerant herbicide genotypes. A winter greenhouse trial was conducted in order to compare the conventional genotypes BR-16 and Doko with their transformed counterparts under imazapyr application. Some aspects (number of pods and seeds weight) were evaluated and observations showed that genotype BR-16-AHAS was more affected than Doko-AHAS compared to their conventional counterparts. Another experiment was conducted with the two transformed genotypes (AHAS) at a dosage of zero and 100 g i.a. ha -1 imazapyr application in the summer. The relative responses of the two genotypes were similar to the winter results but the herbicide effects differed regarding mainly the most affected position in each genotype. The herbicide imazapyr applied (100 g i.a. ha -1) onto AHAS gene-transformed plants may induce the development of sterile pods. The herbicide and not the inserted gene is responsible for this effect.

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经AHAS基因转化的大豆基因型对除草剂imazapyr的耐受性

通过对大豆品种BR-16和Doko进行AHAS基因转化，获得了耐伊马扎吡除草剂基因型。为比较常规基因型BR-16和Doko与转化基因型在imazapyr作用下的差异，进行了冬季温室试验。对某些方面(荚果数和种子重量)进行了评估，观察结果表明，基因型BR-16-AHAS比传统的Doko-AHAS受影响更大。另一项试验是用两种转化基因型(AHAS)在夏季分别以0和100 g / a / ha的剂量施用伊马唑吡尔。两种基因型的相对反应与冬季结果相似，但除草剂效应主要在受影响最大的位置上存在差异。将除草剂imazapyr (100 g i.a. ha -1)施用于AHAS基因转化的植株上，可诱导不育荚果的发育。造成这种效果的是除草剂，而不是插入的基因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Breeding and Applied Biotechnology AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.