翻訳と辞書
Words near each other
・ Derivative Dribble
・ Derivative house
・ Derivative of the exponential map
・ Derivative suit
・ Derivative test
・ Derivative work
・ Derivative-free optimization
・ Derivatives law
・ Derivatives market
・ Derivatization
・ Derivator
・ Derive
・ Derive (computer algebra system)
・ Derived algebraic geometry
・ Derived category
Derived character
・ Derived demand
・ Derived functor
・ Derived no-effect level
・ Derived object
・ Derived row
・ Derived scheme
・ Derived set
・ Derived set (mathematics)
・ Derived stack
・ Derived stem
・ Derived type
・ Derived unique key per transaction
・ Deriving the Schwarzschild solution
・ Derj


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Derived character : ウィキペディア英語版
Derived character

A derived character is a character that is derived from a more primitive character over evolutionary history. Characters, such as derived characters, are used throughout cladistics. This analysis compares characters to determine phylogenetic relationships, but there are many controversies regarding whether certain characters are informative. It is important to choose the correct characteristics to develop the most accurate tree as possible, since even human evolution is hypothesized through the use of character evolution.
Derived characters are of particular importance in relation to synapomorphy, which are often used in tandem maximum parsimony-based phylogenetic reconstruction. The various schemes used to calculate the lowest-scoring trees involved inference from the derived character states shared by taxa. The derived characters used in conjunction with shared traits can indirectly determine where the root of phylogenetic trees are, for example, based on which taxa share the derived characteristic. Stechmann and Cavalier-Smith used derived traits to determine that the root of the eukaryotic tree cannot lie within groups with the fusion gene, since it arose in their common ancestors; thus, derived traits show where lineages splits and where phylogenetic tree roots lie based on where changes occurred over evolutionary time. Stechmann and Cavalier-Smith's work with eukaryotes is just one example of using derived traits to determine common ancestry and build phylogenetic trees to hypothesize about the evolution of a variety of taxa.
==See also==

* Phylogenetics

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「Derived character」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.