Probing the meiotic mechanism of intergenomic exchanges by genomic in situ hybridization on lampbrush chromosomes of unisexual Ambystoma (Amphibia: Caudata)

@article{Bi2010ProbingTM,
  title={Probing the meiotic mechanism of intergenomic exchanges by genomic in situ hybridization on lampbrush chromosomes of unisexual Ambystoma (Amphibia: Caudata)},
  author={K. Bi and J. P. Bogart},
  journal={Chromosome Research},
  year={2010},
  volume={18},
  pages={371-382}
}
  • K. Bi, J. P. Bogart
  • Published 2010
  • Medicine, Biology
  • Chromosome Research
  • The meiotic mechanism of unisexual salamanders in the genus Ambystoma was previously explained by observing lampbrush chromosomes (LBCs). In polyploid unisexual females, a pre-meiotic endomitotic event doubles the chromosome number so that, after meiotic reduction, the mature eggs have the same ploidy as the female. It was assumed that synapses during meiotic I prophase, which result in observed bivalents, join duplicated sister chromosomes. Previous studies also found LBC quadrivalents in some… CONTINUE READING
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