翻訳と辞書 Words near each other ・ Dryopteris crinalis ・ Dryopteris cristata ・ Dryopteris cycadina ・ Dryopteris dilatata ・ Dryopteris erythrosora ・ Dryopteris expansa ・ Dryopteris filix-mas ・ Dryopteris goldiana ・ Dryopteris hirtipes ・ Dryopteris hybrid complex ・ Dryopteris inaequalis ・ Dryopteris intermedia ・ Dryopteris ludoviciana ・ Dryopteris macropholis ・ Dryopteris marginalis ・ Dryopteris shibipedis ・ Dryopteris wallichiana ・ DRYOS ・ Dryosauridae ・ Dryosaurus ・ Dryosaurus grandis ・ Dryoscopus ・ Dryosphaera ・ Dryotribini ・ Dryotribus ・ Dryotribus mimeticus ・ Dryotype ・ Dryovouno ・ Drypetes ・ Drypetes deplanchei Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Dryopteris shibipedis ： ウィキペディア英語版 Dryopteris shibipedis ''Dryopteris shibpedis'' (dri-op-terr-iss shib-ip-edis) is a species of fern native Japan that was declared extinct in 2007, that has since been rediscovered in the Tsukuba Botanical Garden. Despite rediscovery, ''D. shibipedis'' is still ranked as extinct in the wild. == Biological origin and reproduction == Originating from the family Dryopteridaceae, or wood ferns, the ''Dryopteris shibipedis'' is thought to be a “hybridization between a sexual tetraploid providing a diploid egg and an apogamous diploid providing a diploid sperm.” This meaning, the fern itself is considered a tetraploid -- having four sets of chromosomes, develops from the mother providing an egg with two sets of chromosomes and the father providing two sets of chromosomes. The two parent plants would be D. kinkiensis (mother species) and D. pacifica (father species). The embryo of the D. shibipedis has been know, however, to develop without fertilization, and can reproduce asexually, therefore ensuring stability across multiple generations. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dryopteris shibipedis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.