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Brassica campestris-alboglabra monosomic addition lines were developed from a trigenomic Brassica hybrid (2 n=3 x=29, AAC) obtained by backcrossing a resynthesized B. napus (2 n=4 x=38, AACC) line to its parental B. campestris (2 n=2 x=20, AA) line. One addition line was characterized genetically with three loci specific for the alien chromosome and(More)
A resynthesized Brassica napus line (AACC, 2n = 38) was successively backcrossed to its parental B. campestris (AA, 2n = 20) to develop monosomic addition lines that contain the different chromosomes of the other parent B. alboglabra (CC, 2n = 18). Special emphasis was put on identifying monosomic addition lines with B. alboglabra chromosome(s) carrying(More)
A Brassica campestris-alboglabra monosomic addition line (genome: AA + one chromosome from the C genome, 2n = 21) harbours the Brassica alboglabra (CC, 2n = 18) chromosome with the gene for erucic acid. In order to identify this chromosome, we have studied the mitotic prometaphase chromosomes of Brassica campestris (AA, 2n = 20), B. alboglabra, and the(More)
 Four different Brassica campestris-alboglabra monosomic addition lines (AA+1 chromosome from C, 2n=21) were obtained after consecutive backcrosses between resynthesized B. napus (AACC, 2n=38) and the parental B. campestris (AA, 2n=20) accession. The alien chromosomes of B. alboglabra (CC, 2n=18) in the addition lines were distinguished by random amplified(More)
Seed colour inheritance was studied in five yellow-seeded and one black-seeded B. campestris accessions. Diallel crosses between the yellow-seeded types indicated that the four var. yellow sarson accessions of Indian origin had the same genotype for seed colour but were different from the Swedish yellow-seeded breeding line. Black seed colour was dominant(More)
The fatty acid composition of the oil of four resynthesized rapeseed (Brassica napus L.) lines resulting from crosses between B. campestris L. and B. alboglabra Bailey was compared with that of the mid-parent value. Low palmitic acid content was partially epistatic over high. High oleic acid content could be either partially hypostatic to or transgressively(More)
This paper considers the asymptotic distribution of the likelihood ratio statistic T for testing a subset of parameter of interest θ , θ = (γ, η), H0 : γ = γ0, based on the pseudolikelihood L(θ, φ̂), where φ̂ is a consistent estimator of φ, the nuisance parameter. We show that the asymptotic distribution of T under H0 is a weighted sum of independent(More)
Enzyme electrophoresis was used to compare newly resynthesized Brassica napus with its actual parental diploid species, B. campestris and B. alboglabra. Comparisons were also made with cultivated B. napus. Of the eight enzyme systems assayed, four were monomorphic (hexokinase, malate dehydrogenase, mannose phosphate isomerase and peroxidase), whereas the(More)
Diakinesis chromosomes were studied in pollen mother cells of Brassica campestris (2n = 20, genome AA), B. alboglabra (2n = 18, genome CC), a B. campestris-alboglabra monosomic addition line (AA + 1 chromosome from the C genome), and four derived B. campestris primary trisomics. The nucleolar chromosomes of B. campestris were distinguishable by their(More)
Seeds of androgenetic origin were obtained among the F1 progenies of two crosses between resynthesized and cultivated forms of Brassica napus. The high-erucic, white-flowered, resynthesized line No7076 acted as the female, and the zero-erucic, yellow-flowered, cultivars ‘Topas’ and ‘Puma’, as males. No androgenetic seeds were obtained in the reciprocal(More)