MOLECULAR EVIDENCE OF RIBOSOMAL DNA (RDNA) AMPLIFICATION OF A MINICHROMOSOME DERIVED FROM DROSOPHILA-ARIZONAE IN DROSOPHILA-MULLERI DROSOPHILA-ARIZONAE HYBRID MALES
O. Leoncini et al., MOLECULAR EVIDENCE OF RIBOSOMAL DNA (RDNA) AMPLIFICATION OF A MINICHROMOSOME DERIVED FROM DROSOPHILA-ARIZONAE IN DROSOPHILA-MULLERI DROSOPHILA-ARIZONAE HYBRID MALES, Brazilian journal of genetics, 19(1), 1996, pp. 43-45
We present data supporting cytogenetic observations on nucleolar domin
ance in hybrids between Drosophila arizonae and D. mulleri. Our approa
ch was to compare the rDNA restriction patterns between the parental s
pecies and their hybrids. Results demonstrated that the minichromosome
attached to the nucleolus in hybrid males is derived from D. arizonae
.