Temperature and sperm incorporation in polyploid salamanders.

@article{Bogart1989TemperatureAS,
  title={Temperature and sperm incorporation in polyploid salamanders.},
  author={J. P. H. van den Bogart and Richard Paul Elinson and Lawrence E Licht},
  journal={Science},
  year={1989},
  volume={246 4933},
  pages={1032-4}
}
Although most animals reproduce sexually, a number of all-female groups exist. Triploid hybrid salamanders appear to maintain themselves by using a male's sperm to activate their eggs, after which the sperm nucleus is eliminated (gynogenesis). The incidence of sperm nuclear incorporation in eggs of these salamanders depends on temperature. Triploid offspring derived gynogenetically are more frequent at lower temperature, whereas tetraploid offspring derived sexually are far more frequent at… CONTINUE READING

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