翻訳と辞書 Words near each other ・ Orphan (film) ・ Orphan 101 ・ Orphan at My Door ・ Orphan basin ・ Orphan Bird ・ Orphan Black ・ Orphan Black (comic book) ・ Orphan Black (Original Television Score) ・ Orphan Black (Original Television Soundtrack) ・ Orphan Boy mine ・ Orphan bridge ・ Orphan Brigade ・ Orphan drug ・ Orphan Drug Act of 1983 ・ Orphan film ・ Orphan gene ・ Orphan Girl at the Cemetery ・ Orphan Kids Withdrawn Out of This Comedy ・ Orphan Music ・ Orphan of Lowood ・ Orphan of the Pecos ・ Orphan of the Wilderness ・ Orphan patient ・ Orphan process ・ Orphan receptor ・ Orphan salamander ・ Orphan school ・ Orphan School Creek ・ Orphan School Creek (Fairfield) ・ Orphan source 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 Orphan gene ： ウィキペディア英語版 Orphan gene Orphan genes (also called ORFans, especially in microbial literature) are genes without homologues in other lineages.〔 Orphans are a subset of taxonomically-restricted genes (TRGs), which are unique to a specific taxonomic level (e.g. plant-specific).〔 In contrast to non-orphan TRGs, orphans are usually considered unique to a very narrow taxon, generally a species. The classic model of evolution is based on duplication, rearrangement, and mutation of genes with the idea of common descent. Orphan genes differ in that they are lineage-specific with no known history of shared duplication and rearrangement outside of their specific species or clade. Orphan genes may arise through a variety of mechanisms, such as horizontal gene transfer, duplication and rapid divergence, and de novo origination,〔 and may act at different rates in insects, primates, and plants. Despite their relatively recent origin, orphan genes may encode functionally important proteins. ==Definition== In order to be considered an orphan gene, the gene must be encoding a protein that lacks homology to any predicted peptide from other genomes of similar species.〔 Orphans are a subset of taxonomically-restricted genes (TRGs), which are unique to a specific taxonomic level (e.g. plant-specific).〔 In contrast, orphans are usually considered unique to a very narrow taxon, generally a species. 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「Orphan gene」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.