Investigation of the effect of vegetable Brassica oleracea alleles on the productivity of B. napus canola

持续改良油菜以获得更高的产量、更好的农艺和种子质量性状以及对包括丛枝病在内的不同疾病的抗性，将保持这种作物在农场层面的盈利能力。为此，需要广泛的携带有利基因(等位基因)的遗传基础种质，这对杂交油菜良种的选育尤为重要。油菜的等位基因多样性，特别是其C亚组的等位基因多样性比A亚组的小，因此，在该基因组中导入有利的等位基因将确保该作物的育种改良。在NSERC支持的一个先前的研究项目中，阿尔伯塔大学(UofA)油菜籽计划已经培育出数百个遗传多样性的油菜系，携带不同蔬菜甘蓝(C基因组)的等位基因，如甘蓝、甘蓝、花椰菜和西兰花，以拓宽加拿大油菜C亚基因组的遗传基础。这种油菜籽种质在世界上非常独特；在育种中使用这种种质将拓宽该作物C亚基因组的遗传基础，从而使加拿大整个油菜籽产业受益。为此，在基于知识的育种计划中使用这些外来等位基因时，需要了解油菜中甘蓝等位基因的影响。本研究将研究甘蓝等位基因对油菜种子产量、农艺性状和种子品质性状的影响，以及对杂种优势的影响，并将在油菜抗根瘤病性状的背景下进行，以期将本研究培育的油菜品系用于商业杂交油菜品种的开发。

Continued improvement of canola for higher yield, better agronomic and seed quality traits, and resistance to different diseases including clubroot will maintain the profitability of this crop at the farm level. For this, broad genetic base germplasm carrying favorable genes (alleles) is needed, and this is especially important for the development of improved hybrid canola cultivars. Allelic diversity in canola, especially in its C sub-genome is narrow as compared to its A sub-genome; therefore, introgression of favorable alleles in this genome will secure the improvement of this crop through breeding. In a previous research project supported by NSERC, the University of Alberta (UofA) Canola Program has developed several hundred genetically diverse canola lines carrying alleles of different vegetables B. oleracea (C genome), such as kale, cabbage, cauliflower, and broccoli, to broaden the genetic base of the C sub-genome of the Canadian canola. This canola germplasm is very unique in the world; the use of this germplasm in breeding will broaden the genetic base of the C sub-genome of this crop, thus benefiting the whole canola industry in Canada. For this, an understanding of the effect of the B. oleracea alleles in canola will be needed while using these exotic alleles in a knowledge-based breeding program. The proposed research will investigate the impact of the B. oleracea alleles on seed yield and agronomic and seed quality traits as well as on heterosis for use of the knowledge in the breeding of hybrid canola, and this will be accomplished in the background of clubroot resistance trait for the possible use of the canola lines developed from this study in the development of commercial hybrid canola cultivars.