Chromosomes and their Meiotic Behavior in Two Families of the Sub-order Heteroptera

@article{Kaur2006ChromosomesAT,
  title={Chromosomes and their Meiotic Behavior in Two Families of the Sub-order Heteroptera},
  author={Harbhajan Kaur and Shina Chhabra and Vikas Suman and and Manisha Gupta},
  journal={Cytologia},
  year={2006},
  volume={71},
  pages={111-118}
}
Eurydema pulchrum Westw. and Bagrada cruciferarum Kirkadly (Pentatomidae) show 2n 14 12A XY. Autosomes show gradation in size, X is of medium size while Y is the smallest element. Both X and Y are positively heteropycnotic in diffused stage but become isopycnotic in diplotene stage and divide equationally during meiosis-I. At metaphase-II, X and Y get associated, the association being strong forming a pseudobivalent XY in Eurydema pulchrum while weak in Bagrada cruciferarum. A definite pattern… 

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