… Social insects include individuals called workers (worker bees, worker ants) who take care of their younger siblings without giving birth to offspring themselves. How the genes that express this altruistic behavior are passed on to offspring has been a mystery since C. Darwin, but in 1964, W.D. Hamilton revealed that if the actions of workers result in more siblings who inherit some of the same genes as workers from their parents surviving and leaving many offspring, then the worker's genes are also passed on to offspring through a bypass via close relatives. This type of bypass selection is called kin selection. … *Some of the terminology that mentions "Hamilton, WD" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 社会性昆虫には,ワーカー(働きバチ,働きアリ)と呼ばれる自分は子を産まずに弟妹の世話をする個体がいる。こういう利他的行動を発現させる遺伝子がどうして子孫に伝わったかはC.ダーウィン以来のなぞであったが,1964年ハミルトンW.D.Hamiltonは,ワーカーの行為によってワーカーと同じ遺伝子を一部父母からもらっている弟妹がよく生存し,たくさんの子を残すなら,ワーカーの遺伝子も近親者というバイパスを通じて子孫に伝わることを明らかにした。このようなバイパスを通じての淘汰が血縁淘汰である。… ※「Hamilton,W.D.」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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