International Database for Barley Genes and Barley Genetic Stocks
BGS 70, Reaction to Puccinia hordei 1 (barley leaf rust), Rph1
Stock number: BGS 70
Locus name: Reaction to Puccinia hordei 1 (barley leaf rust)
Locus symbol: Rph1
Previous nomenclature and gene symbolization:
Resistance to Puccinia hordei = Pa1 (9).
Resistance to Puccinia hordei C = C (3).
Resistance to Puccinia hordei Otth = Pa (3, 5).
Resistance to Puccinia hordei Otth = Rph1a (4).
Inheritance:
Monofactorial incomplete dominant (2, 3).
Located in chromosome 2H (7); probably in the short arm (6); associated with SNP markers 1_0326 to 2_1416 (positions 16.91 to 22.35 cM) in 2HS of the Bowman backcross-derived line BW682 (1), likely in 2H bin 02.
Description:
The seedling reaction type is 0;n - 1c with race 4 culture 57-19 (5); heterozygotes have reaction types ranging from 1 to 3, depending on parents (5, 6). Responses will vary for homozygotes and heterozygotes when different rust cultures are tested (6).
No images
Origin of mutant:
Natural occurrence in Manchuria (CIho 2947) (2, 8).
Mutational events:
Rph1.a in Manchuria (CIho 2947) (5, 8); Rph1.a in Cape (PI 39403), OAC 21 (CIho 1470) (8); Rph1.a in Oderbrucker (CIho 940) (9); Rph1.a in Sudan (CIho 6489), Speciale (CIho 7536) (2, 5).
Mutant used for description and seed stocks:
Rph1.a in Oderbrucker (GSHO 1313); Rph1.a from Sudan in Bowman*6 (PI 643150, BW682, NGB 22398).
References:
1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendramin, M. Morgante, N. Stein, and R. Waugh. 2010. Genetic Dissection of barley morphology and development. Plant Phys.155:617-627.
2. 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.
3. Roane, C.W. 1962. Inheritance of reaction to Puccinia hordei in barley. I. Genes for resistance among North American race differentiating varieties. Phytopathology 52:1288-1295.
4. Roane, C.W. 1976. BGS 70, Resistance to Puccinia hordei Otth, Rph1a. BGN 6:120.
5. Roane, C.W., and T.M. Starling. 1967. Inheritance of reaction to Puccinia hordei in barley. II. Gene symbols for loci in different cultivars. Phytopathology 57:66-68.
6. Roane, C.W., and T.M. Starling. 1989. Linkage studies with genes conditioning leaf rust reaction in barley. Barley Newsl. 33:190-192.
7. Tuleen, N.A., and M.E. McDonald. 1971. Location of genes Pa and Pa5. Barley Newsl. 15:106-107.
8. Waterhouse, W.L. 1948. Studies in the inheritance of resistance to rust of barley, II. J. Proc. Royal Soc. New South Wales 81:198-205.
9. Watson, I.A., and F.C. Butler. 1947. Resistance to barley leaf rust (Puccinia anomala Rostr.). Linnean Soc. New South Wales, Proc. 72:379-386.
Prepared:
C.W. Roane. 1976. Barley Genet. Newsl. 6:120.
Revised:
J.D. Franckowiak and Y. Jin. 1997. Barley Genet. Newsl. 26:107.
J.D. Franckowiak. 2010. Barley Genet. Newsl. 40:52.
