黑腹果蝇生活史的遗传学。II. 探索性选择实验。
Genetics of life history in Drosophila melanogaster. II. Exploratory selection experiments.
作者信息
Rose M R, Charlesworth B
出版信息
Genetics. 1981 Jan;97(1):187-96. doi: 10.1093/genetics/97.1.187.
Abstract
two types of small-scale selection experiments were performed. (1) Artificial selection experiments were performed on age-specific female fecundity. Selection for early fecundity over three generations produced a statistically detectable direct response. There was no detectable indirect response in other life-history characters. Selection for late fecundity over three generations did not produce any detectable direct response. Indirect responses were detected: early egg-laying decreased and longevity increased. (2) Natural selection for late-age fitness components increased late fecundity, female longevity, and the duration of female reproduction, while early fecundity and mean egg-laying rate decreased.
摘要
进行了两种类型的小规模选择实验。（1）针对特定年龄的雌性繁殖力进行了人工选择实验。对三代的早期繁殖力进行选择产生了统计学上可检测到的直接反应。在其他生活史特征中未检测到间接反应。对三代的晚期繁殖力进行选择未产生任何可检测到的直接反应。检测到了间接反应：早期产卵减少，寿命增加。（2）对晚年适合度成分的自然选择增加了晚期繁殖力、雌性寿命和雌性繁殖持续时间，而早期繁殖力和平均产卵率下降。
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