DNA nuclear satellites of the genus Brassica: variation between species.
The distribution of nuclear DNAs of nine species of the genus Brassica in CsCl density gradients was investigated. The amount of satellite DNA with buoyant density of 1.704 g - cm-minus3 varies widely between the species. The satellite component is completely absent in B. oleracea; in B. nigra its amount reaches 37%, and in the other species it occupies an intermediate position. The absence of satellite DNA in B. oleracea was demonstrated by equilibrium centrifugation using a Cs2SO4 density gradient, containing Hg2+.
D002467:Cell Nucleus / Q000032:analysis; D002499:Centrifugation, Density Gradient; D004247:DNA; D004276:DNA, Satellite / Q000032:analysis; D008628:Mercury; D008970:Molecular Weight; D010944:Plants / Q000032:analysis*; D013045:Species Specificity
D004276:DNA, Satellite; D004247:DNA; D008628:Mercury