International Database for Barley Genes and Barley Genetic Stocks

BGS 137, Reaction to Puccinia hordei 10 (barley leaf rust), Rph10

BGN  26:174
Stock number: BGS 137
Locus name: Reaction to Puccinia hordei 10 (barley leaf rust)
Locus symbol: Rph10

Previous nomenclature and gene symbolization:



Monofactorial dominant (1).
Located in chromosome 3HL (1); about 15.0 cM from the Est2 (esterase 2) locus (1).


The seedling reaction varies from a necrotic fleck to a moderate sized uredinium, and heterozygotes have an intermediate reaction (1). Leaf rust culture Aust 220 from Australia is used to detect resistance in allelism tests and backcross-derived progenies.
No images

Origin of mutant:

Natural occurrence in accession 'Bar Giyyora 30' of Hordeum vulgare subsp. spontaneum, but isolated in a Clipper backcross-derived line (1).

Mutational events:

Rph10.o (Clipper BC8, GSHO 1588) from Hordeum vulgare subsp. spontaneum in Clipper*4/Bar Giyyora 30 called BC8 (1).

Mutant used for description and seed stocks:

Rph10.o (BC8, GSHO 1588) in Clipper*4/Bar Giyyora 30; Rph10.o in Bowman (PI 483237)*2 (GSHO 1995); Rph10.o in Bowman*6 (PI 643159, BW683, NGB 22389).


1. Feuerstein, U., A.H.D. Brown, and J.J. Burdon. 1990. Linkage of rust resistance genes from wild barley (Hordeum spontaneum) with isozyme markers. Plant Breed. 104:318-324.


J.D. Franckowiak and Y. Jin. 1997. Barley Genet. Newsl. 26:174.