Apomixis (English spelling)

Japanese: アポミクシス（英語表記）apomixis

A general term for reproduction that occurs without the union of gametes. It is the opposite of amphimixis, which is sexual reproduction by the union of gametes. It usually means parthenogenesis, but in a broader sense it also includes apogamy, in which gametophyte cells other than egg cells, such as synergid cells, do not fertilize, but produce sporophytes, and apospory, in which ferns produce prothallus from vegetative cells of sporophytes without the development of spores. An individual produced by apomixis is called an apomict.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

配偶子の合着なしに起る生殖の総称。配偶子の合着による有性生殖をアンフィミクシス amphimixisというのに対する言葉。普通には単為生殖などを意味するが，広義には，たとえば卵細胞以外の助細胞のような配偶体細胞が受精せずに，胞子体を生じるアポガミー (無配生殖) や，シダが胞子の発生によらず胞子体の栄養細胞から前葉体をつくる無胞子生殖 aposporyをも含める。アポミクシスによって生じた個体をアポミクトという。

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