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Production of disomic wheat-barley chromosome addition lines using Hordeum bulbosum crosses

Published online by Cambridge University Press:  14 April 2009

A. K. M. R. Islam  and
K. W. Shepherd
A. K. M. R. Islam
Affiliation:
Department of Agronomy, Waite Agricultural Research Institute, The University of Adelaide, Glen Osmond, South Australia, 5064
K. W. Shepherd
Affiliation:
Department of Agronomy, Waite Agricultural Research Institute, The University of Adelaide, Glen Osmond, South Australia, 5064
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Summary

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The possibility of using Hordeum bulbosum Crosses to facilitate production of disomic wheat–barley addition lines from monosomic additions was investigated. Aneuhaploids with 22 chromosomes were obtained in the expected gametic frequencies after crossing monosomic, disomio and monotelo-disomic addition lines, involving four different barley chromosomes, as the female parent with tetraploid H. bulbosum. Thus the added barley chromosomes were not eliminated when preferential elimination of the bulbosum chromosomes took place in the hybrid embryos. Disomic addition lines were obtained after treating the aneuhaploids with colchicine. This method could have wider application in the production of other wheat–alien chromosome disomic addition lines, especially where the transmission frequency of the alien chromosome through the pollen is very low, but its use will depend on the wheat parent being crossarle with H. bulbosum and the alien chromosome being retained during the elimination of bulbosum chromosomes.

Type
Short Paper
Information
Genetics Research , Volume 37 , Issue 2 , April 1981 , pp. 215 - 219
Copyright
Copyright © Cambridge University Press 1981

References

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