Long-Term Laboratory Evolution of a Genetic Life-History Trade-Off in Drosophila melanogaster. 2. Stability of Genetic Correlations

Evolution ◽  
1994 ◽  
Vol 48 (4) ◽  
pp. 1258 ◽  
Author(s):  
Armand M. Leroi ◽  
W. Royal Chen ◽  
Michael R. Rose
Keyword(s):  
Drosophila Melanogaster ◽  
Life History ◽  
Genetic Correlations ◽  
Laboratory Evolution ◽  
Trade Off

scholarly journals Trade-off between age of first reproduction and survival in a female primate

2009 ◽  
Vol 5 (3) ◽  
pp. 339-342 ◽  
Author(s):  
Gregory E. Blomquist
Keyword(s):  
Life History ◽  
Life History Theory ◽  
Rhesus Macaques ◽  
Human Study ◽  
Genetic Correlations ◽  
Adult Survival ◽  
Trade Off ◽  
Trade Offs ◽  
Female Life History ◽  
First Reproduction

Trade-offs are central to life-history theory but difficult to document. Patterns of phenotypic and genetic correlations in rhesus macaques, Macaca mulatta —a long-lived, slow-reproducing primate—are used to test for a trade-off between female age of first reproduction and adult survival. A strong positive genetic correlation indicates that female macaques suffer reduced adult survival when they mature relatively early and implies primate senescence can be explained, in part, by antagonistic pleiotropy. Contrasts with a similar human study implicate the extension of parental effects to later ages as a potential mechanism for circumventing female life-history trade-offs in human evolution.

scholarly journals RAPID LABORATORY EVOLUTION OF ADULT LIFE-HISTORY TRAITS IN DROSOPHILA MELANOGASTER IN RESPONSE TO TEMPERATURE

Evolution ◽  
1995 ◽  
Vol 49 (3) ◽  
pp. 538-544 ◽  
Author(s):  
Linda Partridge ◽  
Brian Barrie ◽  
Nicholas H. Barton ◽  
Kevin Fowler ◽  
Vernon French
Keyword(s):  
Drosophila Melanogaster ◽  
Life History ◽  
Life History Traits ◽  
Adult Life ◽  
Laboratory Evolution ◽  
Response To Temperature ◽  
Rapid Laboratory

scholarly journals GENETICS OF LIFE HISTORY IN DROSOPHILA MELANOGASTER. I. SIB ANALYSIS OF ADULT FEMALES

Genetics ◽  
1981 ◽  
Vol 97 (1) ◽  
pp. 173-186 ◽  
Author(s):  
Michael R Rose ◽  
Brian Charlesworth
Keyword(s):  
Drosophila Melanogaster ◽  
Life History ◽  
Genetic Variance ◽  
Genetic Correlations ◽  
Adult Life ◽  
Egg Laying ◽  
Environmental Variance ◽  
Dominance Variance ◽  
Adult Females ◽  
Early Fecundity

ABSTRACT A sib analysis of adult life-history characters was performed on about twelve hundred females from a laboratory Drosophila melanogaster population that had been sampled from nature and cultured so as to preserve its genetic variability. The following results were found. There was no detectable trend with age in additive or dominance genetic variances for age-specific fecundity. Environmental variance for age-specific fecundity increased with age. The genetic variance for fecundity characters was primarily additive. The genetic variance for longevity was primarily dominance variance. There were negative genetic correlations between early fecundity and lifespan, as well as between mean egg-laying rate and longevity.

Harvest selection, genetic correlations, and evolutionary changes in recruitment: one less thing to worry about?

2005 ◽  
Vol 62 (4) ◽  
pp. 802-810 ◽  
Author(s):  
S B Munch ◽  
M R Walsh ◽  
D O Conover
Keyword(s):  
Life History ◽  
Early Life ◽  
Genetic Correlations ◽  
Early Life History ◽  
Menidia Menidia ◽  
Recruitment Success ◽  
Evolutionary Changes ◽  
Using Data ◽  
Indirect Impacts

Harvest selection may lead to detrimental evolutionary changes in exploited populations. Few studies have considered the indirect impacts that harvest selection may have arising through genetic correlations. Using data from a long-term fishing experiment on Atlantic silversides (Menidia menidia), we show that there are significant genetic correlations between adult length at harvest and several early life history characters known to influence recruitment success. Based on this analysis, we estimate the magnitude of the change in recruitment success that may arise indirectly from selection on adults. In contrast with studies of harvest selection on adult characteristics, we find the response of characters in the early life history to be relatively slow and that impacts on recruitment, if any, are likely to be driven by selective changes in fecundity.

Rapid Laboratory Evolution of Adult Life-History Traits in Drosophila melanogaster in Response to Temperature

Evolution ◽  
1995 ◽  
Vol 49 (3) ◽  
pp. 538 ◽  
Author(s):  
Linda Partridge ◽  
Brian Barrie ◽  
Nicholas H. Barton ◽  
Kevin Fowler ◽  
Vernon French
Keyword(s):  
Drosophila Melanogaster ◽  
Life History ◽  
Life History Traits ◽  
Adult Life ◽  
Laboratory Evolution ◽  
Response To Temperature ◽  
Rapid Laboratory
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