SEQUENCE AND TISSUE-SPECIFIC EXPRESSION OF A PUTATIVE PEROXIDASE GENE FROM WHEAT (TRITICUM-AESTIVUM L)

被引:45
作者
HERTIG, C [1 ]
REBMANN, G [1 ]
BULL, J [1 ]
MAUCH, F [1 ]
DUDLER, R [1 ]
机构
[1] UNIV ZURICH,INST PLANT BIOL,ZOLLIKERSTR 107,CH-8008 ZURICH,SWITZERLAND
关键词
PEROXIDASE GENE; WHEAT;
D O I
10.1007/BF00017928
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have used a cDNA clone encoding a pathogen-induced putative wheat peroxidase to screen a genomic library of wheat (Triticum aestivum L. cv. Cheyenne) and isolated one positive clone, lambda POX1. Sequence analysis revealed that this clone contains a gene encoding a putative peroxidase with a calculated pI of 8.1 which exhibits 58% and 83% sequence identity to the amino acid sequence of the turnip (Brassica rapa) peroxidase and a pathogen-induced putative wheat peroxidase, respectively. The two introns in the wheat gene are at the same positions as introns in the peroxidase genes of tomato and horseradish. Results of S1-mapping experiments suggest that this gene is neither pathogen- nor wound-induced in leaves but is constitutively expressed in roots.
引用
收藏
页码:171 / 174
页数:4
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