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GrainGenes Reference Report: TAG-104-171

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Reference	TAG-104-171
Title	Production of a new wheat line possessing the 1BL.1RS wheat-rye translocation derived from Korean rye cultivar Paldanghomil
Journal	Theoretical and Applied Genetics
Year	2002
Volume	104
Pages	171-176
Author	Ko JM [ Show all 6 ]
Abstract	Summary: 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
External Databases	http://link.springer-ny.com/link/service/journals/00122/bibs/2104002/21040171.htm
Keyword	[ Hide all but 1 of 42 ] 1b 1bl.1rs 1bl/1rs translocation agronomic performance backcross bivalents bread bread wheat breeding breeding programs c banding chromatin chromosome chromosome number common wheat cultivar genomic in situ hybridization gish hexaploid wheat homology hybrid in situ hybridization long arm metaphase pattern production program quality region resistance rye secale secale cereale source terminal region translocation translocation line triticum triticum aestivum wheat breeding wheat cultivar wheat-rye translocation

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