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Reconstruction of allopolyploid Brassicas through non-homologous recombination: introgression of resistance to pod shatter in Brassica napus

Published online by Cambridge University Press:  14 April 2009

Shyam Prakash  and
V. L. Chopra
Shyam Prakash
Affiliation:
Biotechnology Centre, Indian Agricultural Research Institute, New Delhi 110012
V. L. Chopra
Affiliation:
Biotechnology Centre, Indian Agricultural Research Institute, New Delhi 110012
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Pod shattering of rapeseed (Brassica napus) causes serious yield loss. Genetic resistance to shattering has been introgressed into B. napus from B. juncea. This followed from allosyndetic pairing between chromosomes of B and C genomes in the interspecific F1 hybrid, B. juncea × B. napus (2n = 37, AABC). The reconstituted B. napus plant showed regular meiosis with 19 bivalents and had pollen and seed fertility of 84 and 23% respectively. An approach is suggested for achieving introgression from monogenomic diploids to digenomic allopolyploids that exploits non-homologous recombination.

Type
Research Article
Information
Genetics Research , Volume 56 , Issue 1 , August 1990 , pp. 1 - 2
Copyright
Copyright © Cambridge University Press 1990

References

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