Polyploidy and nuclear fusion in the fat body of Rhodnius (hemiptera)
Open Access
- 1 December 1967
- journal article
- research article
- Published by The Company of Biologists in Journal of Cell Science
- Vol. 2 (4), 603-616
- https://doi.org/10.1242/jcs.2.4.603
Abstract
The diploid number in Rhodnius is 22 in both sexes. At hatching the fat-body cells are tetraploid, with a few octoploid. This polyploidy is presumed to arise by endomitosis in the egg. In the fully nourished insect this state persists throughout life; and occasional 16n and 32n nuclei occur. Whether these arise by endomitosis or by nuclear fusion has not been established. In extreme starvation (e.g. 8 months from the time of moulting in the 4th-stage larva at 26 °C) polyploidy increases greatly. This results from nuclear fusion in interphase. The evidence is as follows:This publication has 19 references indexed in Scilit:
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