Resistance genes in barley (Hordeum vulgare L.) and their identification with molecular markers

• Authors: J. Chelkowski , M. Tyrka , A. Sobkiewicz
• Languages of publication: EN

Abstracts

EN

Current information on barley resistance genes available from scientific papers and on-line databases is summarised. The recent literature contains information on 107 major resistance genes (R genes) against fungal pathogens (excluding powdery mildew), pathogenic viruses and aphids identified in Hordeum vulgare accessions. The highest number of resistance genes was identified against Puccinia hordei, Rhynchosporium secalis, and the viruses BaYMV and BaMMV, with 17, 14 and 13 genes respectively. There is still a lot of confusion regarding symbols for R genes against powdery mildew. Among the 23 loci described to date, two regions Mla and Mlo comprise approximately 31 and 25 alleles. Over 50 R genes have already been localised and over 30 mapped on 7 barley chromosomes. Four barley R genes have been cloned recently: Mlo, Rpg1, Mla1 and Mla6, and their structures (sequences) are available. The paper presents a catalogue of barley resistance gene symbols, their chromosomal location and the list of available DNA markers useful in characterising cultivars and breeding accessions.

Keywords

EN

BARLEY; DNA MARKER; PCR; RESISTANCE GENE

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2003
• Volume: 44
• Issue: 3
• Pages: 291-309

Contributors

author

J. Chelkowski

author

M. Tyrka

author

A. Sobkiewicz

• Document Type: REVIEW
• Publication order reference: M. Tyrka, Laboratory of Population Genetics, Polonia University, ul. Pulaskiego 4/6, 42-200 Czestochowa, Poland