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Prospects for the Development of Rapeseed ( B. napus L.) with Improved Linoleic and Linolenic Acid Content
Author(s) -
Roy N. N.,
Tarr A. W.
Publication year - 1987
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1987.tb01099.x
Subject(s) - rapeseed , introgression , biology , linoleic acid , linolenic acid , brassica , interspecific hybridization , botany , interspecific competition , hybrid , fatty acid , gene , genetics , biochemistry
The special aspects of the Western Australian rape‐seed breeding programme for the improvement of C 18 fatty acids (FA) have been highlighted. Progress made through the use of ‘Oro’‐mutant and IXLIN (interspecific X derived) as sources of genes fur improved C 18 FA is discussed. These two donor lines were crossed or intercrossed with high yielding, disease resistant B. napus lines (summer and winter type) or their early generation progenies from interspecific crosses with B. juncea or B. carinata. Tins provided suitable genetic diversity and favourable agronomic background for the introgression of target genes or gene system for improved C 18 fatty acids. Many of the polyenoic lines selected from these crosses have indicated scope for combining high linoleic and low linolenic acid levels, with maintenance of good growths and seed development in plants well adapted to the environment.