Development of fertility restorers of winter oilseed rape with low glucosinolate content for the CMS Ogu-INRA system
Koprna, R.,OSEVA PRO, Opava (Czech Republic). Vyzkumny Ustav Olejnin | Kucera, V.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic) | Machackova, I.,Selgen, Chlumec nad Cidlinou (Czech Republic). Slechtitelska Stanice | Horacek, J.,AGRITEC, Sumperk (Czech Republic) | Ehrenbergerova, J.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta
We have bred low glucosinolate (GSL) winter oilseed rape lines carrying the fertility restorer for the CMS Ogu-INRA system. The original restorer line BO20 contained 31 micromol/g GSL in seeds, but by crossing this line with various low GSL CMS lines, followed by repeated selection of fertile segregants, we were able to obtain fertile lines with a mean GSL concentration in seeds of 11.8 micromol/g. These results confirmed that the gene(s) controlling the GSL content are not closely linked to the fertility restorer gene and that the SCAR marker SG34 is closely associated with the fertility restoring allele. It facilitates the selection of fertile segregants; however, the marker is unable to distinguish between the homozygous RfRf and the heterozygous Rfrf genotypes.
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