Sodium azide mutagenesis resulted in a peanut plant with elevated oleate content
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Keywords

chemical mutant
FAD2B
NIRS
oleate
peanut

How to Cite

1.
Wang CT, Wang XZ, Zhang SW, Li GJ, Zhang JC, Yu SL. Sodium azide mutagenesis resulted in a peanut plant with elevated oleate content. Electron. J. Biotechnol. [Internet]. 2011 Mar. 15 [cited 2024 Sep. 19];14(2). Available from: https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v14n2-4

Abstract

Screening of peanut seeds resulting from 0.39% sodium azide treatment with NIRS calibration equation for bulk seed samples identified a plant with more than 60% oleate. Oleate content in individual seeds of the plant, as predicted by NIRS calibration equation for intact single peanut seeds, ranged from 50.05% ~ 68.69%. Three seeds with >60% oleate thus identified were further confirmed by gas chromatography. Multiple sequence alignments of the FAD2B gene from Huayu 22 (wild type) and peanut seeds with elevated oleate (mutant type) revealed a C281T transition in the coding region causing an I94T substitution in the oleoyl-PC desaturase, which may be responsible for reduction in the enzyme activity.

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