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Bulletin of Botanical Research ›› 2015, Vol. 35 ›› Issue (4): 504-508.doi: 10.7525/j.issn.1673-5102.2015.04.005

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Sporogenesis and Gametogenesis of Calla Lily(Zantedeschia hybrids)

YANG Liu-Yan1,2;WANG Yu-Bing3;ZHANG Yong-Chun1,2*;SUN Yi1,2   

  1. 1.Forestry and Pomology Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201403;
    2.Shanghai Engineering Research Center for Floriculture,Shanghai 201303;
    3.Biotechnology Research Center,China Three Gorges University,Yichang 443002
  • Online:2015-07-20 Published:2016-03-09
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Abstract: We studied the megasporogensis, microsporogensis and the development of female and male gametophytes of Zantedeschia ‘Majestic Red’ through traditional paraffin sections. The ovule was anatropous, bi-integument, and crassinucellar with integument tapeta. The megaspore mother cell meiosis formed a linear megaspore tetrad. The chalazal end megaspore developed into the embryo sac mother cell, which developed to Polygonum type embryo-sac, another 3 megaspores degenerated. Each stamen had 2-3 anthers, with butterfly-shaped pollen sacs, ach side with 2 small sporangial. The wall of anther was completely developed, which consisted of four layers: epidermis, endothecium, middle layers and tapetum. The tapetum was deformation type. The cytokinesis of microspore mother cell during meiosis was simultaneaous type. Microspore tetrads were mainly cross, and the pollen grains had 2-celled when shed.

Key words: Calla Lily(Zantedeschia hybrids), sporogenesis, gametogenesis, female gametophyte, male gametophyte

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