Biochemical genetics of glucosinolate modification in Arabidopsis and Brassica

被引：0
|
作者：
C. Hall
D. McCallum
A. Prescott
R. Mithen
机构：
[1] John Innes Centre,
[2] Norwich Research Park,undefined
[3] Colney Lane,undefined
[4] Norwich NR4 7UH Fax: +44(0)1603 259882 e-mail: Richard.Mithen@bbsrc.ac.uk,undefined
[5] Max Planck Institute of Chemical Ecology,undefined
[6] Tatzendpromenade 1a,undefined
[7] 07745 Jena,undefined
[8] Germany,undefined
来源：
Theoretical and Applied Genetics | 2001年 / 102卷
关键词：
Keywords Arabidopsis thaliana; Brassica oleracea; Glucosinolates; 2-Oxoglutarate dependent dioxygenases;
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摘要：
Fine mapping of the glucosinolate biosynthesis gene OHP, which regulates the conversion of 3-methylsulphinylpropyl to 3-hydroxypropyl glucosinolate, in an Arabidopsis thaliana Columbia × Landsberg erecta RI line population positioned the gene within 54 kb of DNA on chromosome IV. Sequence data identified a family of genes encoding 2-oxoglutarate-dependent dioxygenases in this region. A probe based on these genes co-segregated with ALK in Brassica oleracea,a gene regulating the synthesis of alkenyl glucosinolates. The reactions catalysed by the OHP and ALK enzymes utilise similar substrates and may have a common mechanism. Thus, these dioxygenases are prime candidates for controlling the side chain modification of glucosinolates.
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页码：369 / 374
页数：5
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