翻訳と辞書
Words near each other
・ Genistoids
・ Genisys
・ Genisys Credit Union
・ Genital bisection
・ Genital branch of genitofemoral nerve
・ Genital cord
・ Genital corpuscles
・ Genital cutting
・ Genital disease
・ Genital examination
・ Genital frenectomy
・ Genital frenulum
・ Genital insert
・ Genital jewellery
・ Genital leiomyoma
Genic capture
・ Genica Athanasiou
・ GenICam
・ Genicanthus
・ Genicanthus bellus
・ Genicanthus caudovittatus
・ Genicanthus lamarck
・ Genicanthus melanospilos
・ Genicanthus personatus
・ Genicanthus semifasciatus
・ Genicanthus watanabei
・ Genichi Kawakami
・ Genichi Taguchi
・ Genichi Takahashi
・ Genichiro Sata


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

Genic capture : ウィキペディア英語版
Genic capture

Genic capture is a hypothesis explaining the maintenance of genetic variance in traits under sexual selection. A classic problem in sexual selection is the fixation of alleles that are beneficial under strong selection, thereby eliminating the benefits of mate choice. Genic capture resolves this paradox by suggesting that additive genetic variance of sexually selected traits reflects the genetic variance in total condition. A deleterious mutation anywhere in the genome will adversely affect condition, and thereby adversely affect a condition-dependent sexually selected trait. Genic capture therefore resolves the lek paradox by proposing that recurrent deleterious mutation maintains additive genetic variance in fitness by incorporating the entire mutation load of an individual. Thus any condition-dependent trait "captures" the overall genetic variance in condition. Rowe and Houle argued that genic capture ensures that good genes will become a central feature of the evolution of any sexually selected trait.
== Condition ==

The key quantity for genic capture is vaguely defined as "condition." The hypothesis only defines condition as a quantity that correlates tightly with overall fitness, such that directional selection will always increase average condition over time. Condition should, in general, reflect overall energy acquisition, such that life-history variation reflects differential allocation to survival and sexual signalling. Genetic variation in condition should be very broadly affected by any changes in the genome. Close to equilibrium any mutation should be deleterious, thereby leading to non-zero overall mutation rate, maintaining variance in fitness.

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「Genic capture」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.