Breeding Cultivar development

Conventional breeding has developed oilseed rape (Brassica napus) cultivars that can accumulate long-chain fatty acids such as C20 1 and C22 l, however the ability to accumulate short-chain fatty acids is limited. Similarly the ability to accumulate industrially useful hydroxy fatty acids and epoxy fatty acids is also limited with conventional breeding methods. Due to its close relationship to the crucifer Arabidopsis and its associated characterised genome, and the relative ease with which genes can be inserted into Brassica species, oilseed rape is seen as a key target species for genetic manipulation. 

The use of genetic markers for cultivar development in soybean breeding programs is just beginning. A need exists to develop methods for the widespread application of marker-based techniques in breeding programs. Currendy, genetic markers used... 

Fehr, W.R. Breeding methods for cultivar development. Soybeans Improvement, Production and Uses. Second ed. J.R. Wilcox, Ed., Agron. Monogr. 16. ASA, CSSA, and SSSA Madison, WI, 1987a pp. 249-293. 

BREEDING OF BRASSICA OILSEED SPECIES Canola Cultivar Development... 

Breeding for improved seed yield is the main breeding objective for HEAR cultivar development programs. Eor B. napus HEAR cultivars, this has involved, successively, selection within OPP landraces, crosses of OPPs and pedigree selection of derived families and hybrids (McVetty et al., 2009). 

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