Hybridisation between Brassica napus L. and Raphanus raphanistrum L. under agronomic field conditions
Date
2001
Authors
Rieger, M.
Potter, T.
Preston, C.
Powles, S.
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Journal article
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Theoretical and Applied Genetics: international journal of plant breeding research, 2001; 103(4):555-560
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Abstract
The frequency of hybridisation between Brassica napus L. and Raphanus raphanistrum L. under agronomic conditions was assessed in field experiments, where R. raphanistrum were randomly planted at two different densities into large plots of B. napus. An acetolacate synthase (ALS)-inhibiting herbicide-resistant trait was used to detect potential hybrid individuals. No hybrids were detected amongst 25,000 seedlings grown from seed collected from R. raphanistrum plants. Two hybrids were obtained from more than 52-million B. napus seedlings. Both hybrids were characterised as amphidiploids (AACCRrRr, 2n = 56) and were fertile. The frequency of hybridisation into B. napus in this experiment using male-fertile B. napus was 4 2 10⁻⁸.
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The original publication can be found at www.springerlink.com