two papers of interest to the gramene database

[Matthew Campbell]

Hi

Here are two papers that will be of interest to the Gramene database
First is:
*Development of Co-Dominant Amplified Polymorphic Sequence Markers in 
Rice that Flank the /Magnaporthe grisea/ Resistance Gene /Pi7(t)/ in 
Recombinant Inbred Line 29. *(2004) M. A. Campbell, D. Chen, and P. C. 
Ronald./Phytopathology/,  *94*(1), 302-307.
This paper shows that the original placement of Pi7(t) by Wang et al 
(1994 Genetics paper) was incorrect and that Pi7(t) is linked tightly to 
the mapped position of Pi1 using a segregating F2 population. This paper 
also gives CAPS marker sets and polymorphisms. This paper also indicates 
that RIL29 (the representative line for Pi7(t)) has non-parental DNA at 
the Pi1/Pi7(t) locus that likely originates from LAC23. This hypothesis 
is supported by RFLP analysis of flanking loci.

Second is:

CAMPBELL, M. A. & RONALD, P. C. (2005)
Characterization of four rice mutants with alterations in the defence 
response pathway.
/Molecular Plant Pathology/ *6* (1), 11-21.

This paper describes four mutants. Enhanced Blast Resistance 1 (ebr1) 
has enhanced resistance against Xoo (PR6) and Magnaporthe grisea (Race 
CAL-1). ebr2 has only enhanced resistance to Magnaporthe grisea CAL-1. 
ebr3 is a lesion mimic that is conditional, upon exposure to 
low-intensity light the LM phenotype appears and has enhanced resistance 
to both XOO PR6 and Magnaporthe grisea CAL-1. ncr1 is a lesion mimic 
that occurs spontaneously and confers no resistance to either XOO or M. 
grisea. ebr3 and ncr1 are both recessive. The modes of inheritance for 
ebr1 and ebr2 are not yet known.

Thanks
Matthew Campbell