International Database for Barley Genes and Barley Genetic Stocks

BGS 345, Reaction to barley yellow mosaic virus 3 (BaYMV), rym3

BGN  32:105
Stock number: BGS 345
Locus name: Reaction to barley yellow mosaic virus 3 (BaYMV)
Locus symbol: rym3

Previous nomenclature and gene symbolization:

Resistance to BaYMV 3 = ym3 (6).


Monofactorial recessive (6, 7).
Located in chromosome 5HS (5); rym3.c is flanked by molecular markers MWG028 and ABG705A at distances of 7.2 and 11.7 cM, respectively (5), likely in 5H bin 04.


Plants with the rym3.c gene show less yellowing and stunting than susceptible plants when grown in fields that are infested with BaYMV (7). Plants with rym3.c are susceptible to BaMMV (barley mild mosaic virus) in Germany (1, 4) and Japan (3).
No images

Origin of mutant:

A gamma-ray induced mutant (Ea 52, OUJ555) in Chikurin Ibaraki (OUM297) (7), natural occurrence in Oriental barley cultivars (2).

Mutational events:

rym3.c in Chikurin Ibaraki (Ea 52, OUM297) (6, 7); rym3.d in Haganemugi (OUJ108, PI 315852), rym3.e in Chosen (PI 83794), rym3.f in Komeirazu (OUJ724, CIho 10957), rym3.g in Baitori (OUJ371, PI 155098) (2).

Mutant used for description and seed stocks:

rym3.c in Ea 52 (OUJ555); rym3.d in Ishuku Shirazu (OUJ546) (2).


1. Götz, R., F. Ordon, and W. Friedt. 1991. Resistance to the “barley yellow mosaic virus complex” and genetic diversity of BaMMV-resistance. p. 609-614. In L. Munck, K. Kirkegaard, and B. Jensen (eds.). Barley Genet. VI, Vol. I. Proc. Sixth Int. Barley Genet. Symp., Helsingborg, Sweden, 1991. Munksgaard International Publishers Ltd., Copenhagen.
2. Kawada, N., and M. Tsuru. 1987. Genetics and breeding of resistance to barley yellow mosaic virus. p. 651-657. In S. Yasuda and T. Konishi (eds.) Barley Genetics V. Proc. Fifth Int. Barley Genet. Symp., Okayama, Japan. 1986. Maruzen Co., Ltd., Okayama Branch, Okayama.
3. Nomura, K., S. Kashiwazaki, H. Hibino, T. Inoue, E. Nakata, Y. Tsuzaki, and S. Okuyama. 1996. Biological and serological properties of strains of barley mild mosaic virus. J. Phytopath. 144:103-197.
4. Ordon, F., R. Götz, and W. Friedt. 1993. Genetic stocks resistant to barley mosaic viruses (BaMMV, BaYMV, BaYMV-2) in Germany. Barley Genet. Newsl. 22:46-50.
5. Saeki, K., C. Miyazaki, N. Hirota, A. Saito, K. Ito, and T. Konishi. 1999. RFLP mapping of BaYMV resistance gene rym3 in barley (Hordeum vulgare). Theor. Appl. Genet. 99:727-732.
6. Ukai, Y. 1984. Genetic analysis of a mutant resistant to barley yellow mosaic virus. Barley Genet. Newsl. 14:31-33.
7. Ukai, Y., and A. Yamashita. 1980. Induced mutation for resistance to yellow mosaic virus. Japan. J. Breed. 30:125-130.


T. Konishi and J.D. Franckowiak. 2002. Barley Genet. Newsl. 32:105-106.