Study on Cytogenetic Basis for Origin of Apomictic Boehmeria tricuspis
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    Abstract:

    Abstract: The objective of this paper is to investigate the cytogenetic basis for origin of triploid apomictic Boehmeria tricuspis. We developed a study on the meiosis of PMC between the triploid apomictic B.tricuspis and the diploid sexual B.tricuspis. Rich trivalents were found in the PMC meiosis of triploid apomictic B.tricuspis showed it’s a autotriploid;In the sexual B.tricuspis,the PMC meiosis usually be normal.But a few were abnormal and some of their behavior maybe led to the occurrence of 2n gamete. The fusion of 2n gamete and n gamete may led to autotriploid apomictic plants. This is the cytogenetic basic event for the origin of triploid apomictic B.tricuspis.

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History
  • Received:July 18,2012
  • Revised:October 11,2012
  • Adopted:March 11,2013
  • Online: April 24,2013
  • Published:
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