International Database for Barley Genes and Barley Genetic Stocks

BGS 515, Reaction to Septoria passerinii 1, Rsp1

BGN  26:441
Stock number: BGS 515
Locus name: Reaction to Septoria passerinii 1
Locus symbol: Rsp1

Previous nomenclature and gene symbolization:

Resistance to Septoria passerinii Sacc = Sep (1, 2).


Monofactorial incomplete dominant (2).
Location is unknown (2).


The Rsp1.a gene conditions a high level of resistance to a single spore culture of Septoria passerinii isolated in Minnesota, USA. Infection occurs on F1 seedlings, but is limited to a few lesions (2).
No images

Origin of mutant:

Natural occurrence in accession CIho 4249-2 (CIho 14300) (2).

Mutational events:

Rsp1.a in CIho 14300 (GSHO 2510) (2).

Mutant used for description and seed stocks:

Rsp1.a in CIho 14300 (GSHO 2510).


1. Moseman, J.G. 1972. Report on genes for resistance to pests. Barley Genet. Newsl. 2:145-147.

2. Rasmusson, D.C., and W.E. Rogers. 1963. Inheritance of resistance to septoria in barley. Crop Sci. 3:161-163.


D.C. Rasmusson. 1988. Barley Genet. Newsl. 18:84 as BGS 465.


J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:441.