MAP-BASED CLONING OF A PROTEIN-KINASE GENE CONFERRING DISEASE RESISTANCE IN TOMATO

被引:1104
作者
MARTIN, GB [1 ]
BROMMONSCHENKEL, SH [1 ]
CHUNWONGSE, J [1 ]
FRARY, A [1 ]
GANAL, MW [1 ]
SPIVEY, R [1 ]
WU, TY [1 ]
EARLE, ED [1 ]
TANKSLEY, SD [1 ]
机构
[1] CORNELL UNIV, DEPT PLANT BREEDING & BIOMETRY, ITHACA, NY 14853 USA
关键词
D O I
10.1126/science.7902614
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Pto gene in tomato confers resistance to races of Pseudomonas syringae pv. tomato that carry the avirulence gene avrPto. A yeast artificial chromosome clone that spans the Pto region was identified and used to probe a leaf complementary DNA (cDNA) library. A cDNA clone was isolated that represents a gene family, at least six members of which genetically cosegregate with Pto. When susceptible tomato plants were transformed with a cDNA from this family, they were resistant to the pathogen. Analysis of the amino acid sequence revealed similarity to serine-threonine protein kinases, suggesting a role for Pto in a signal transduction pathway.
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页码:1432 / 1436
页数:5
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