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SHEN Ye, SHEN Jia-Heng, GUO De-Dong, FANG Xiao-Hua, LIU Li-Ping. Megasporogenesis and Development of Female Gametophyte in the Apomictic Monosomic Addition Line M14 of Beta corolliflora in Sugar Beet[J]. Plant Science Journal, 2006, 24(2): 106-112.
Citation: SHEN Ye, SHEN Jia-Heng, GUO De-Dong, FANG Xiao-Hua, LIU Li-Ping. Megasporogenesis and Development of Female Gametophyte in the Apomictic Monosomic Addition Line M14 of Beta corolliflora in Sugar Beet[J]. Plant Science Journal, 2006, 24(2): 106-112.
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Megasporogenesis and Development of Female Gametophyte in the Apomictic Monosomic Addition Line M14 of Beta corolliflora in Sugar Beet

  • 1.

    Department of Biological Engineering, College of Life and Science, Heilongjiang University, Harbin 150080, China

  • 2.

    Department of Biology, College of Life and Environment Science, Harbin Normal University, Harbin 150080, China

  • 3.

    Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, Beijing 100080, China

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  • Received Date: September 18, 2005
  • Revised Date: November 16, 2005
  • Published Date: April 24, 2006
    Graphical Abstract
    • Abstract
  • The megasporogenesis and development of female gametophyte were studied by paraffin sections in line M14,a chromosome 9 monosomic addition line of Beta corolliflora Zoss.in sugar beet,in which revealed that the egg cell could been produced through diplospory or sexuality.The results are as follows:sexuality is of Polygonum-type,and diplospory is of two types,Allium odorum-type and Antennatia-type in M14.The megasporocyte of Allium odorum-type and Antennatia-type turn into a mature diplosporous female gametophyte.The Megasporocyte Polygonum-type turns into a mature monoplontic female gametophyte.Compared with the sexual female gametophyte,bradygenesis and abortion can be frequently observed during the development of diplosporous female gametophyte.Only 25% of them are normal.The characteristic of diplosporous reproduction is discussed.
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