Plant genetic diversity and the struggle to measure selection
Article Abstract:
The combination of coalescence theory and nucleotide sequence data provides a method of measuring selection and plant genetic diversity in population genetics. The method gives an estimate of the extent of genetic diversity. The role of genetic random drift and mutation are considered crucial in molecular evolution. Estimation of the effective population size is possible when genealogy is consistent with the neutral process. Coalescence framework gives a theoretical basis for integration of long evolutionary time periods.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Genetic correlation between genetic and parental effects on growth in pigeon squabs
Article Abstract:
Experimental analysis indicates a positive correlation between the parental and genetic effects in pigeon squabs. A low genetic correlation exists between these effects at 28 days due to an enhanced interaction between the parent and the offspring. There is a 0.14 to 0.85 correlation for body weight traits and 0.06 to 0.71 for weight gain traits. Improving the body weight of squabs such that a marketable weight is attained in 21 days enables better production of squabs without affecting parental effects.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Genetic and environmental impacts on litter size and early infant survival in three species of callitrichids
Article Abstract:
Environmental factors reduce the repeatability of traits in the anthropoid primates, callitrichids. The estimates of heritability for litter size at birth are high in the species S. fuscicollis, though the heritability estimates at two weeks of age are almost nil. Husbandry changes increase the litter size in C. jacchus. Small sample size and high residual variance reduce heritability estimates. C. jacchus exhibit substantial negative environmental association between litter size and age.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Potential reproductive rates and the operation of sexual selection. Sexual selection for moral virtues
- Abstracts: Treating genetic diseases today. Betting on better organs. A schizophrenia in childhood
- Abstracts: Exhaled nitric oxide decreases upon acute exposure to high-altitude hypoxia. A new protocol for evaluating putative causes for multiple variables in a spatial setting, illustrated by its application to European cancer rates
- Abstracts: Non-genomic transgenerational inheritance of disease risk. Gender, immunity and the regulation of longevity. Determination and stability of sex
- Abstracts: Rutgers University - Camden: anchoring bioscience research in Camden and the Delaware Valley