Journal
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE III-SCIENCES DE LA VIE-LIFE SCIENCES
Volume 324, Issue 9, Pages 839-845Publisher
EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/S0764-4469(01)01353-1
Keywords
high oleic acid content; mutant; oleate desaturase; RFLP; sunflower; suppression
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All the [HOAC] lines derived from the Pervenets mutant carry specific RFLP (oleHOS) revealed by an oleate desaturase cDNA used as a probe. The [LO] (linoleic) genotypes do not carry oleHOS, but another allele: oleLOR. We studied [HOAQ] heredity in two segregating populations. In an F2 population, the [HOAQ]trait co-segregated with oleHOS. In a recombinant inbred line F6 population, all [HOAC] RI lines carried oIeHOS. The RI lines carrying oleHOS were either [LO] or [HOAQ]. The absence of [HOAC] RI lines with olelOR eliminated the occurrence of a recombination event between the locus carrying oleHOS and the locus carrying Pervenets allele. The [HOAQ] trait is due to 2 independent loci: the locus carrying oleHOS allele and another locus. One allele at this other locus may suppress the effect of oleHOS allele on the [HOAQ] trait. The existence of this suppressor allele has only been suggested for sunflower. (C) 2001 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
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