International Database for Barley Genes and Barley Genetic Stocks

BGS 121, Reaction to Puccinia hordei 3 (barley leaf rust), Rph3

BGN  26:156
Stock number: BGS 121
Locus name: Reaction to Puccinia hordei 3 (barley leaf rust)
Locus symbol: Rph3

Previous nomenclature and gene symbolization:

Resistance to Puccinia anomala Rostr = Pa1 (2).
Resistance to Puccinia hordei Otth 3 = Pa3 (6).
Resistance to Puccinia hordei Otth 3 = Rph3c (7).


Monofactorial dominant (7, 9).
Located in chromosome 7HL (3, 8); Rph3.c is about 9.7 cM distal from the Xnt1 (Xantha seedling 1) locus (3); linkage to the lks2 (short awn 2) locus was not observed (3).


The seedling reaction type is 0 - 0;c with race 4 culture 57-19, and complete dominance is observed in segregating progenies (6).
No images

Origin of mutant:

Natural occurrence in Estate (CIho 3410, PI 57700) (2, 6).

Mutational events:

Rph3.c in Estate (CIho 3410, PI 57700, GSHO 1316) (2, 6); Rph3.c in Aim (CIho 3737) (5); Rph3.c in Santizo (PI 39505), Baladi 16 (PI 263160), Beecher (PI 263161), and PI 531990 (4); Rph3.w in accession PI 466324 of Hordeum vulgare subsp. spontaneum (1).

Mutant used for description and seed stocks:

Rph3.c in Estate (GSHO 1316); Rph3.c in Bowman (PI 483237)*7 (GSHO 1863); Rph3.c in Bowman*11 (BW746, PI 643152, NGB 22452); Rph3.w from PI 466324 in Bowman*7 (BW747, NGB 33453).


1. Chicaiza, O., J.D. Franckowiak, and B.J. Steffenson. 1996. New sources of resistance to leaf rust in barley. p. 706-708. In A.E. Slinkard, G.J. Scoles, and B.G. Rossnagel (eds.) Proc. Fifth Int. Oat Conf. & Seventh Int. Barley Genet. Symp., Saskatoon. Univ. of Saskatchewan, Saskatoon.
2. Henderson, M.T. 1945. Studies of the sources of resistance and inheritance of reaction to leaf rust, Puccinia anomala Rostr., in barley. Ph.D. Thesis. Univ. of Minnesota, St. Paul.
3. Jin, Y., G.D. Statler, J.D. Franckowiak, and B.J. Steffenson. 1993. Linkage between leaf rust resistance genes and morphological markers in barley. Phytopathology 83:230-233.
4. Jin, Y., and B.J. Steffenson. 1994. Inheritance of resistance to Puccinia hordei in cultivated and wild barley. J. Hered. 85:451-454.
5. Moseman, J.G., and C.W. Roane. 1959. Physiologic races of barley leaf rust (Puccinia hordei) isolated in the United States from 1956 to 1958. Plant Dis. Rep. 43:1000-1003.
6. Roane, C.W., and T.M. Starling. 1967. Inheritance of reaction to Puccinia hordei in barley. II. Gene symbols for loci in differential cultivars. Phytopathology 57:66-68.
7. Roane, C.W., and T.M. Starling. 1970. Inheritance of reaction to Puccinia hordei in barley. III. Genes in the cultivars Cebada Capa and Franger. Phytopathology 60:788-790.
8. Tan, B.H. 1978. Verifying the genetic relationships between three leaf rust resistance genes in barley. Euphytica 27:317-323.
9. Tuleen, N.A., and M.E. McDonald. 1971. Location of genes Pa and Pa5. Barley Newsl. 15:106-107.


C.W. Roane. 1976. Barley Genet. Newsl. 6:121.


J.D. Franckowiak and Y. Jin. 1997. Barley Genet. Newsl. 26:156.