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Different λ20p1.4 nlDNA localization on chromosome arm 3R in Drosophila species of the melanogaster complex: (a) D. simulans (Laboratory), (b) D. sechellia, (c) D. mauritiana. Labeled regions are indicated by arrows. Scale bar: 10 µm.  

Different λ20p1.4 nlDNA localization on chromosome arm 3R in Drosophila species of the melanogaster complex: (a) D. simulans (Laboratory), (b) D. sechellia, (c) D. mauritiana. Labeled regions are indicated by arrows. Scale bar: 10 µm.  

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Chromosome localization of sequences homologous to 20p1.4 of the Drosophila melanogaster nuclear lamina DNA (nlDNA) was established by in situ hybridization in species of the melanogastersubgroup. DNA of the 20p1.4 clone was shown to be located in the chromocenter in all the species examined. Laboratory strains of D. simulans, D. mauritiana, andD....

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