Theoretical and Applied Genetics

, Volume 104, Issue 8, pp 1317–1324

Identification and mapping of molecular markers linked to rust resistance genes located on chromosome 1RS of rye using wheat-rye translocation lines

  •  R. Mago
  •  W. Spielmeyer
  •  G. Lawrence
  •  E. Lagudah
  •  J. Ellis
  •  A. Pryor

DOI: 10.1007/s00122-002-0879-3

Cite this article as:
Mago, R., Spielmeyer, W., Lawrence, G. et al. Theor Appl Genet (2002) 104: 1317. doi:10.1007/s00122-002-0879-3

Abstract.

The short arm of rye (Secale cereale) chromosome 1 has been widely used in breeding programs to incorporate new disease resistance genes into wheat. Using wheat-rye translocation and recombinant lines, molecular markers were isolated and mapped within chromosomal regions of 1RS carrying rust resistance genes Lr26, Sr31, Yr9 from 'Petkus' and SrR from 'Imperial' rye. RFLP markers previously mapped to chromosome 1HS of barley – flanking the complex Mla powdery mildew resistance gene locus – and chromosome 1DS of Aegilops tauschii – flanking the Sr33 stem rust resistance gene – were shown to map on either side of rust resistance genes on 1RS. Three non cross-hybridising Resistance Gene Analog markers, one of them being derived from the Mla gene family, were mapped within same region of 1RS. PCR-based markers were developed which were tightly linked to the rust resistance genes in 'Imperial' and 'Petkus' rye and which have potential for use in marker-assisted breeding.

1RS AFLP Gabo 1BL 1RS Gabo 1DL 1RS Imperial rye Petkus rye Resistance gene analogs (RGA) Sequence-tagged site (STS) Wheat-rye recombinants 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  •  R. Mago
    • 1
  •  W. Spielmeyer
    • 1
  •  G. Lawrence
    • 1
  •  E. Lagudah
    • 1
  •  J. Ellis
    • 1
  •  A. Pryor
    • 1
  1. 1.CSIRO Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia

Personalised recommendations