A Database for Triticeae and Avena
Reactions of barley
accessions carrying different rym
BaYMV and BaMMV in
Japan and Germany
Frank Ordon2, and Masahiko Furusho3
Okada, Mabi-cho, Kibi-gun, Okayama 710-1311, Japan
of Crop Science and Plant Breeding I, Justus-Liebig-University, D-35392
Agricultural Research Center, Chikushino, Fukuoka 818-8549, Japan
Hard-copy edition pages 46 - 48.
Barley yellow mosaic virus (BaYMV) and barley mild mosaic
virus (BaMMV) are the most important soil-borne viral pathogens of winter
barley. So, extensive surveys of
genetic resources to the viruses have been conducted in Japan and Germany, and
many resistant barley accessions were found.
Genetic analyses of the resistant accessions revealed that at least 12
resistance genes are present (Takahashi et al. 1973; Ukai 1984; Kaiser and
Friedt 1989; Iida and Konishi 1994; Graner et al. 1995, 1996, 2000; Konishi et
al. 1997), and that some resistant accessions carry more than one resistance
gene. For instance, Mokusekko 3, which
was reported to carry the incompletely dominant resistance gene (Ym) to BaYMV (Takahashi et al. 1973), is
made clear to possess two resistance genes (rym1
and rym5) to BaYMV (Konishi et al.
1997, Miyazaki et al. 2001). Franka is resistant to BaYMV and BaMMV in Japan,
and contains two different resistance genes for BaYMV and BaMMV (Konishi and
Furusho 2000). In Germany, Franka is
also resistant to BaMMV and BaYMV-1 (but susceptible to BaYMV-2), and its
resistance is governed by a single recessive gene (rym4) (Graner et al. 1999).
These facts indicate that some barley accessions carry more than one
resistance gene and that genes for resistance to BaYMV should be separated from
those to BaMMV (Konishi 2000).
Table 1 indicates that barley accessions carrying different rym resistance genes show different
reactions to BaYMV and BaMMV in Japan and Germany. Ea 52 carrying rym3 is
resistant to BaYMV, but is susceptible to BaMMV. Misato Golden with rym5
is resistant to all isolates of BaYMV and BaMMV, except Japanese BaMMV. The cultivar Prior with rym6 is susceptible to all isolates of BaYMV and BaMMV, except
BaYMV-II in Japan. H HOR 3365 (rym7) and Bulgarian 347 (rym9) are resistant to BaMMV and
Japanese BaYMV, whereas they are susceptible to BaYMV in Germany. The accession 10247 (rym8) is resistant to BaYMV and BaMMV, except German BaYMV-2. Hiberna (rym10)
is resistant to BaYMV and BaMMV, except German BaMMV. Resistance to all isolates of BaYMV and BaMMV examined is
detected in Mihori Hadaka 3 (rym2),
Russia 57 (rym11) and Muju Covered 2
(rym12), as well as Mokusekko 3 (rym1+rym5).
These results indicate that genetic analysis of resistance
should be conducted independently for BaYMV and BaMMV, and that accessions
resistant to BaYMV and BaMMV may contain different genes for resistance to
Table 1. Reactions of barley accessions carrying different
resistance genes to BaYMV and
BaMMV in Japan (JPN) and Germany (GMN)
a Gene symbol and chromosome carrying the gene is
shown in the parenthesis.
b The resistance gene derived from Mokusekko 3
which is resistant to BaYMV and
c R = resistant; S = Susceptible; MR: moderately
resistant; NA = no data.
d Prior with rym6
is resistant to only the BaYMV-II isolate in Japan.
Graner, A., W.
Michalek, and S. Streng. 2000. Molecular mapping of genes conferring resistance
to viral and fungal pathogens. p. 45-52. In
S. Logue (ed.) Barley Genetics
Eighth Barley Genet. Symp. Vol. 1., Adelaide Univ., Adelaide, Australia. Graner, A., E. Bauer, A. Kellermann, G.
Proeseler, G. Wenzel, and F. Ordon. 1995. RFLP analysis of resistance to the
barley yellow mosaic virus complex. agronomie 15:475-479.
Graner, A., E.
Bauer, J. Chojecki, A. Tekauz, A. Kellermann, G. Proeseler, M. Michel, V. Valkov,
G. Wenzel, and F. Ordon. 1996. Molecular mapping of genes for disease resistance
in barley. p. 253-255. In A.
Slinkard, G. Scoles, and B. Rossnagel (eds.) V IOC & VII IBGS Poster
Sessions 1. Proc. Fifth Int. Oat Conf. & Seventh Int. Barley Genet. Symp.,
Univ. Ext. Press., Univ. Saskatchewan, Saskatoon, Canada.
Graner, A., S.
Streng, A. Kellermann, G. Proeseler, A. Schiemann, H. Peterka, and F. Ordon.
1999. Molecular mapping of genes conferring resistance to soil-borne viruses in
barley an approach to promote
understanding of host-pathogen interactions. J. Plant Diseases and Protection
Iida, Y. and T.
Konishi. 1994. Linkage analysis of a resistance gene to barley yellow mosaic
virus strain II in two-rowed barley. Breeding Science 44:191-194.
Kaiser, R. and W.
Friedt. 1989. Chromosomal location of resistance to barley yellow mosaic virus
in German winter-barley identified by trisomic analysis. Theor. Appl. Genet.
Konishi, T. 2000.
Proposed gene symbols for resistance to Barley Mild Mosaic Virus (BaMMV) in
barley. BGN 30:4-5.
Konishi, T., T.
Ban, Y. Iida, and R. Yoshimi. 1997. Genetic analysis of disease resistance to all
strains of BaYMV in a Chinese barley landrace, Mokusekko 3. Theor. Appl. Genet.
Konishi, T., and
M. Furusho. 2000. German barley cv.
ranka possesses two different resistance genes to barley yellow mosaic
virus (BaYMV) and barley mild mosaic virus (BaMMV). BGN 30:55-57.
Miyazaki, C., E.
Osanai, K. Saeki, K. Ito, T. Konishi, K. Sato, and A. Saito. 2001. Mapping of
quantitative trait loci conferring resistance to barley yellow mosaic virus in
a Chinese barley landrace Mokusekko 3. Breeding Science 51:171-177.
Takahashi, R., J.
Hayashi, T. Inouye, I. Moriya, and C. Hirao. 1973. Studies on resistance to
yellow mosaic disease in barley. I. Tests for varietal reactions and genetic
analysis of resistance to the disease. Ber. Ohara Inst. landw. Biol., Okayama
Ukai, Y. 1984.
Genetic analysis of a mutant resistant to barley yellow mosaic virus. BGN 14:31-33.