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Effects of glyphosate on soybean metabolism in strains bred for glyphosate-resistance.


ABSTRACT: To produce high quality, glyphosate-resistant soybeans, we crossed Jinda 73 and glyphosate-resistant RR1 (Roundup Ready First Generation) (RR1) resulting in 34 hybrid strains. To determine the effects of glyphosate on soybean metabolism, we grew the two parents upto the seedling stage, and measured chlorophyll, soluble sugar, malondialdehyde (MDA), relative conductivity and proline. Then, we treated the plants with glyphosate and measured the same factors again. Results showed that the chlorophyll content of Jinda 73 and RR1 decreased after spraying glyphosate. Glyphosate increased the level of soluble sugar, MDA, relative conductivity and proline in Jinda 73, but had no significant effect on RR1. We determined glyphosate resistance of the parents and the 34 hybrid, offspring strains by documenting the growth response in the field after treatment with glyphosate. Results showed that 29 hybrid, offspring strains have complete glyphosate resistance. Polymerase chain reaction (PCR) shows that the strains which have complete resistance to glyphosate have imported the CP4 5-enolpyhruvylshikimate-3- phosphate synthase (CP4 EPSPS) gene successfully. We selected three high quality, glyphosate-resistant strains (F7-3, F7-16 and F7-21), which had higher protein and oil levels as compared with Jinda 73.

SUBMITTER: Li WY 

PROVIDER: S-EPMC6419695 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Effects of glyphosate on soybean metabolism in strains bred for glyphosate-resistance.

Li Wei-Yu WY   Lu Ping P   Xie Hao H   Li Gui-Quan GQ   Wang Jing-Xuan JX   Guo Dong-Yu DY   Liang Xing-Yu XY  

Physiology and molecular biology of plants : an international journal of functional plant biology 20180917 2


To produce high quality, glyphosate-resistant soybeans, we crossed Jinda 73 and glyphosate-resistant RR1 (Roundup Ready First Generation) (RR1) resulting in 34 hybrid strains. To determine the effects of glyphosate on soybean metabolism, we grew the two parents upto the seedling stage, and measured chlorophyll, soluble sugar, malondialdehyde (MDA), relative conductivity and proline. Then, we treated the plants with glyphosate and measured the same factors again. Results showed that the chlorophy  ...[more]

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