Title: Nuclear-cytoplasmic interactions in amoeba interspecific hybrids
Abstract: Interspecific hybrids between two species of amoeba, A. proteus and A. indica have been produced by reciprocal nuclear transfer after enucleating the host cells. In the hybrid cells the diameter of the transplanted nucleus changes to that characteristic of the host cell nucleus. In the combination of A. indica nucleus and A. proteus cytoplasm (InPc), nuclear enlargement occurs within 24 h after transplantation and reaches the size of A. proteus nucleus before the first cell division. In the combination of A. proteus nucleus and A. indica cytoplasm (PnIc), nuclear diameter is reduced to the size of A. indica nucleus following the first cell division after nuclear transfer. Experiments involving the recombination of hybrid nucleus and cytoplasm with their original parental type of nucleus and cytoplasm show that the nucleus of the hybrid cell is irreversibly changed and becomes non-functional with its original cytoplasm. The hybrid cytoplasm can accept a parental type of nucleus and yet function normally.
Publication Year: 1974
Publication Date: 1974-03-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 28
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