GENETICS OF LIFE HISTORY IN DROSOPHILA MELANOGASTER. II. EXPLORATORY SELECTION EXPERIMENTS | Zendy

Michael R. Rose | Zendy; Brian Charlesworth | Zendy

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GENETICS OF LIFE HISTORY IN DROSOPHILA MELANOGASTER. II. EXPLORATORY SELECTION EXPERIMENTS

Author(s) -

Michael R. Rose,

Brian Charlesworth

Publication year - 1981

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/97.1.187

Subject(s) - fecundity , biology , longevity , drosophila melanogaster , selection (genetic algorithm) , natural selection , reproduction , genetics , zoology , life history theory , evolutionary biology , life history , demography , ecology , gene , population , artificial intelligence , sociology , computer science

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.

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