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Vol. 11, No. 12, 1998 / 1247 MPMI Vol. 11, No. 12, 1998, pp. 12471252. Publication no. M-1998-1007-01N. 1998 The American Phytopathological Society
 

Summary: Vol. 11, No. 12, 1998 / 1247
MPMI Vol. 11, No. 12, 1998, pp. 12471252. Publication no. M-1998-1007-01N. 1998 The American Phytopathological Society
Research Note
Sequences Related to Transposable Elements
and Bacteriophages Flank Avirulence Genes
of Pseudomonas syringae
Jihyun F. Kim, Amy O. Charkowski, James R. Alfano, Alan Collmer, and Steven V. Beer
Department of Plant Pathology, Cornell University, Ithaca, NY 14853, U.S.A.
Accepted 3 September 1998.
Examination of the reported nucleotide sequences con-
taining avirulence genes of Pseudomonas syringae patho-
vars suggested that avrA, avrB, avrC, avrPphC, avrRpm1,
and avrPpiA1 are bordered by sequences similar to those
of transposable elements of gram-negative bacteria. Re-
peat sequences and fragments of at least two different in-
sertion sequence elements were identified at the ends of
avrA and avrB, implying multiple transposition events for
these areas. A DNA region homologous to a bacteriophage
sequence was found upstream of avrPto. The linkage of
various virulence/avirulence genes of animal- and plant-

  

Source: Alfan, James R. - Department of Plant Pathology, University of Nebraska-Lincoln

 

Collections: Biology and Medicine