Genetics of aliphatic glucosinolates .4. Side-chain modification in Brassica oleracea

被引:77
作者
Giamoustaris, A [1 ]
Mithen, R [1 ]
机构
[1] JOHN INNES CTR PLANT SCI RES,BRASSICA & OILSEEDS RES DEPT,NORWICH NR4 7UJ,NORFOLK,ENGLAND
关键词
Aliphatic glucosinolates; B-drepanensis; B-atlantica; B-oleracea; sulfurophane; gene mapping;
D O I
10.1007/BF00224105
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The biochemical and genetical relationship between aliphatic glucosinolates which have methylthioalkyl, methylsulphinylalkyl and alkenyl side chains has not been resolved by biochemical studies. In this study, two hypothetical models are tested by the generic analysis of a backcross population between Brassica drepanensis and B. atlantica. The results support one of the models in which 3-methylthiopropyI glucosinolate is sequentially converted to 3-methylsulphinylpropyl, and then to 2-propenyl glucosinolate, by the action of dominant alleles at two loci. RFLP mapping positioned both loci on the same linkage group homologous to the B. napus N19 linkage group. The implication of the results for the genetic manipulation of glucosinolates in Brassica to improve flavour and nutritional properties, and in order to investigate plant-insect interactions, is discussed.
引用
收藏
页码:1006 / 1010
页数:5
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