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The Analysis of Physiological Variations in M-2 Generation of Solanum melongena L. Mutagenized by Ethyl Methane Sulfonate

文献类型： 外文期刊

作者： Xiao Xi-ou 1 ; Lin Wenqiu 1 ; Li Wei 1 ; Gao Xiaoming 1 ; Lv Lingling 1 ; Ma Feiyue 1 ; Liu Yuge 1 ;

作者机构： 1.CATAS, South Subtrop Crops Res Inst, Haikou, Peoples R China

2.Zhanjiang City Key Lab Trop Crops Genet Improveme, Zhanjiang, Peoples R China

关键词： anthocyanin;chlorogenic acid;eggplant;EMS mutant;M-2 generation;phenotypic variation

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2017 年 8 卷

页码：

收录情况： SCI

摘要： The eggplant was mutagenized with ethyl methane sulfonate (EMS) to enhance its genetic variability in our previous paper. In this article, we further analyzed the phenotype of M-2 generation of mutant eggplants. A total of 325 independent M-2 families were investigated for phenotypic variation. In addition to the visible phenotypic variation, chlorogenic acid (CGA) concentrations were analyzed in 26 fruits of mutants with High Performance Liquid Chromatography assay. Seventeen fruits exhibited significantly higher concentrations of CGAs than those in wild-type. The anthocyanin concentration of S9-1, the purple black mutant, was higher than WT, meanwhile, the anthocyanin concentration of L6-4 and U36-1 was lower than WT. Furthermore, our RT-PCR result demonstrated that the expression levels of anthocyanin biosynthetic genes, except for SmPAL, were increased in S9-1, and the regulator SmMYB1 was decreased in L6-4 and U36-1 mutants. Together, our data indicated that, M-2 generation showed abundant phenotypic variations and the strong potential usage for next step of breeding and molecular genetic mechanisms in eggplant.

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