期刊
GENETICA
卷 135, 期 2, 页码 209-219出版社
SPRINGER
DOI: 10.1007/s10709-008-9270-x
关键词
Cayo Santiago; Censored data; Coefficient of variation; Fundamental theorem of natural selection; Heritability; Life history; Macaca mulatta; Rhesus macaque; Morphology; Variance components
资金
- National Center for Research Resources (NCRR) [CM-5 P40 RR003640-20]
- National Institutes of Health (NIH)
- University of Illinois Graduate College
The patterning of quantitative genetic descriptions of genetic and residual variation for 15 skeletal and six life history traits was explored in a semi-free-ranging group of rhesus macaques (Macaca mulatta Zimmerman 1780). I tested theoretical predictions that explain the magnitude of genetic and residual variation as a result of 1. strength of a trait's association with evolutionary fitness, or 2. developmental and physiological relationships among traits. I found skeletal traits had higher heritabilities and lower coefficients of residual variation than more developmentally and physiologically dependent life history traits. Total lifetime fertility had a modest heritability (0.336) in this population, and traits with stronger correlations to fitness had larger amounts of residual variance. Censoring records of poorly-performing individuals on lifetime fertility and lifespan substantially reduced their heritabilities. These results support models for the fitness-related patterning of genetic variation based on developmental and physiological relationships among traits rather than the action of selection eroding variation.
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