ISSN:
1432-2242
Keywords:
Key words Intertribal somatic hybrids
;
Brassica
;
Camelina sativa
;
Alternaria
;
Camalexin
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Camelina sativa, a wild relative of Brassica crops, is virtually immune to blackspot disease caused by Alternaria brassicicola. Intertribal somatic hybrids were produced between C. sativa and rapid-cycling Brassica oleracea as a step toward the transfer of resistance to this disease into Brassica vegetable crops. The plants recovered were confirmed as somatic hybrids by flow cytometry and RAPD analysis. All hybrids showed a morphology intermediate between the two parents. Rooted plants grew in soil up to 4–5 weeks, and some produced sterile flowers. Two of three hybrids tested showed a high level of resistance to A. brassicicola. Resistance was correlated with the induction of high levels of the phytoalexin camalexin 48 h after inoculation, as in the resistant Camelina fusion partner. In contrast, susceptible somatic hybrids produced much lower levels of camalexin.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001220051053
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