…Normally, gametes formed in the gametophyte combine to form the next generation sporophyte, but sometimes gametophyte cells develop independently to form sporophytes and reproduce asexually. This is called apogamy. In angiosperms, parthenogenesis of cells other than the egg cells of the embryo sac (examples include the Chinese leopard plant, which develops from synergid cells, and Chinese chives, which develop from antipodal cells) is sometimes called meiotic apogamy. Apogamy is a fairly common phenomenon in ferns, and in this case apospory is seen in the sporophyte. … *Some of the terminology that mentions "meiotic apogamy" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…配偶体上において,配偶子囊内で形成された配偶子が合体して次世代の胞子体をつくるのが正常であるが,配偶体の細胞が単独で発生を行って胞子体をつくって単為生殖をすることがあり,これを無配生殖という。また被子植物で,胚囊の卵細胞以外の細胞の単為生殖による場合(助細胞から発生するヒナノシャクジョウや反足細胞から発生するニラなどの例がある)を生殖的無配生殖meiotic apogamyということがある。シダ植物では無配生殖はかなり普遍的な現象であり,この場合,胞子体で無胞子生殖aposporyがみられる。… ※「meiotic apogamy」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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