Abstract 3487 from Intl. Bot. Congress 1999

ibclogo XVI International Botanical Congess

Abstract Number: 3487
Session = 20.14.5

GENETICS AND BIOLOGY OF THE MAGNAPORTHE GRISEA AVR1-CO39-RICE Pi-CO39 (t) INTERACTION

Leong, S. A.# Chauhan, R. S.#, Farman, M. L.,Tosa, Y. ^,Mayama, S.^,Eto, Y.^, Nakayashi, H.^,Ronald, P.^, Zhang, H.-B.,Ś and Punekar, N.S., # USDA-ARS PDRU, Madison, WI, * U of WI-Madison, ^U of KT, ^Kobe U, Japan, U of CA-Davis, Ś Texas A & M

Genetic analysis of infection of rice CO39 by M. grisea 2539 (avirulent) and Guy11 (virulent) has revealed a gene-for-gene interaction. The gene conferring cultivar-specificity with CO39 was isolated from M. grisea strain 2539. DNA sequence of the minimal 1.05 kb fragment has revealed seven, small ORFs. The distribution of AVR1-CO39 was investigated: all isolates from Setaria while few from rice contain putative homologs. Analysis of the AVR1-CO39 locus from rice isolate Guy11 indicated that the region was absent. The corresponding disease resistance gene in rice maps to chromosome 11. Progress on the isolation of Pi-CO39 (t) will be presented.

HTML-Version made 7. July 1999 by Kurt Stüber

GENETICS AND BIOLOGY OF THE MAGNAPORTHE GRISEA AVR1-CO39-RICE Pi-CO39 (t) INTERACTION

Leong, S. A.# Chauhan, R. S.#, Farman, M. L.*,Tosa, Y. ^,Mayama, S.^,Eto, Y.^, Nakayashi, H.^,Ronald, P.^, Zhang, H.-B.,Ś and Punekar, N.S.*, # USDA-ARS PDRU, Madison, WI, * U of WI-Madison, ^U of KT, ^Kobe U, Japan, U of CA-Davis, Ś Texas A & M

Leong, S. A.# Chauhan, R. S.#, Farman, M. L.,Tosa, Y. ^,Mayama, S.^,Eto, Y.^, Nakayashi, H.^,Ronald, P.^, Zhang, H.-B.,Ś and Punekar, N.S., # USDA-ARS PDRU, Madison, WI, * U of WI-Madison, ^U of KT, ^Kobe U, Japan, U of CA-Davis, Ś Texas A & M