Advertisement

Theoretical and Applied Genetics

, Volume 104, Issue 2–3, pp 171–176 | Cite as

Production of a new wheat line possessing the 1BL.1RS wheat-rye translocation derived from Korean rye cultivar Paldanghomil

  • J. M. Ko
  • B. B. Seo
  • D. Y. Suh
  • G. S. Do
  • D. S. Park
  • Y. H. Kwack

Abstract 

The 1BL.1RS translocations between wheat (Triticum aestivum L.) and rye (Secale cereale L.) are widely used in bread wheat breeding programs, but all modern wheat cultivars with the 1BL.1RS have shown genetic vulnerability due to one rye source – a German cultivar, Petkus. We have developed, a new 1BL.1RS wheat-rye translocation line from the backcross of the F1 hybrid of wheat cv. Olmil and rye cv. Paldanghomil, both cultivars from Korea. The GISH technique was applied to identify the presence of rye chromatin in 467 BC1F6 lines selected from 77 BC1F5 lines. Only one line, Yw62–11, showed wheat-rye translocated chromosomes, with a somatic chromosome number of 2n=42. C-banding patterns revealed that the translocated chromosome was 1BL.1RS, showing prominent bands in the terminal and sub-terminal regions of the short arm as well as in the centromeric region and terminal region of the long arm. This new 1BL.1RS translocation line formed 21 bivalents like common wheat at meiotic metaphase I, thereby showing complete homology.

Keywords Triticum aestivum Secale cereale 1BL.1RS translocation Genomic in situ hybridization C-banding 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • J. M. Ko
    • 1
  • B. B. Seo
    • 2
  • D. Y. Suh
    • 1
  • G. S. Do
    • 2
  • D. S. Park
    • 1
  • Y. H. Kwack
    • 1
  1. 1.National Yeongnam Agricultural Experiment Station, Milyang 627-803, Korea e-mail: kojmin@rda.go.kr Tel: +82-350-1228, Fax: +82-353-3050KR
  2. 2.Department of Biology, Kyungpook National University, Taegu 702-701, KoreaKR

Personalised recommendations