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Asian Journal of Plant Sciences

Year: 2005 | Volume: 4 | Issue: 1 | Page No.: 6-10
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Authors

Fatih Seyis

Wolfgang Friedt

Wilfried Luhs

Keywords

Research Article

Development of Resynthesized Rapeseed (Brassica napus L.) Forms with Low Erucic Acid Content Through in ovulum Culture

Fatih Seyis, Wolfgang Friedt and Wilfried Luhs
Brassica crop species have become one of the world wide most important source of vegetable and oils. This development was accomplished by substantial progress in breeding and biotechnology as well as by modernisation of cultivation practices. Brassica napus (2n=38, genome AACC) is a natural amphidiploid that originated from several independent spontaneous hybridisation events between the diploid species B. rapa (2n=20, AA) and B. oleracea (2n=18, CC). The limited geographic range of B. napus combined with intensive quality breeding has led to a narrow genetic basis in this species. In contrast, the original progenitors are both highly polymorphic and therefore, do offer a broad genetic variability that can be exploited for rapeseed improvement via wide hybridisation (resynthesis). Zero-erucic B. oleracea mutants (namely Kashirka and Ladozhskaya), which were identified as a novel source of a gene conferring low erucic acid content to Brassica seed oils, were crossed with the B. rapa cultivar `Asko` (0-Quality). Fatty acid analysis of seeds from individual hybrids revealed a zero-erucic acid phenotype as expected. This basic material can be used as a genetic resource for quality and yield improvement of oilseed rape.
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