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Determinants of effective population size for loci with different modes of inheritance.

Publication ,  Journal Article
Storz, JF; Ramakrishnan, U; Alberts, SC
Published in: The Journal of heredity
November 2001

Here we report an assessment of the determinants of effective population size (N(e)) in species with overlapping generations. Specifically, we used a stochastic demographic model to investigate the influence of different life-history variables on N(e)/N (where N = population census number) and the influence of sex differences in life-history variables on N(e) for loci with different modes of inheritance. We applied an individual-based modeling approach to two datasets: one from a natural population of savannah baboons (Papio cynocephalus) in the Amboseli basin of southern Kenya and one from a human tribal population (the Gainj of Papua New Guinea). Simulation-based estimates of N(e)/N averaged 0.329 for the Amboseli baboon population (SD = 0.116, 95% CI = 0.172 - 0.537) and 0.786 for the Gainj (SD = 0.184, 95% CI = 0.498 - 1.115). Although variance in male fitness had a substantial impact on N(e)/N in each of the two primate populations, ratios of N(e) values for autosomal and sex-linked loci exhibited no significant departures from Poisson-expected values. In each case, similarities in sex-specific N(e) values were attributable to the unexpectedly high variance in female fitness. Variance in male fitness resulted primarily from age-dependent variance in reproductive success, whereas variance in female fitness resulted primarily from stochastic variance in survival during the reproductive phase.

Duke Scholars

Published In

The Journal of heredity

DOI

EISSN

1465-7333

ISSN

0022-1503

Publication Date

November 2001

Volume

92

Issue

6

Start / End Page

497 / 502

Related Subject Headings

  • Population Density
  • Papio
  • Humans
  • Genetics, Population
  • Genetics
  • Gene Frequency
  • Fertility
  • Evolutionary Biology
  • Demography
  • Animals
 

Citation

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Storz, J. F., Ramakrishnan, U., & Alberts, S. C. (2001). Determinants of effective population size for loci with different modes of inheritance. The Journal of Heredity, 92(6), 497–502. https://doi.org/10.1093/jhered/92.6.497
Storz, J. F., U. Ramakrishnan, and S. C. Alberts. “Determinants of effective population size for loci with different modes of inheritance.The Journal of Heredity 92, no. 6 (November 2001): 497–502. https://doi.org/10.1093/jhered/92.6.497.
Storz JF, Ramakrishnan U, Alberts SC. Determinants of effective population size for loci with different modes of inheritance. The Journal of heredity. 2001 Nov;92(6):497–502.
Storz, J. F., et al. “Determinants of effective population size for loci with different modes of inheritance.The Journal of Heredity, vol. 92, no. 6, Nov. 2001, pp. 497–502. Epmc, doi:10.1093/jhered/92.6.497.
Storz JF, Ramakrishnan U, Alberts SC. Determinants of effective population size for loci with different modes of inheritance. The Journal of heredity. 2001 Nov;92(6):497–502.
Journal cover image

Published In

The Journal of heredity

DOI

EISSN

1465-7333

ISSN

0022-1503

Publication Date

November 2001

Volume

92

Issue

6

Start / End Page

497 / 502

Related Subject Headings

  • Population Density
  • Papio
  • Humans
  • Genetics, Population
  • Genetics
  • Gene Frequency
  • Fertility
  • Evolutionary Biology
  • Demography
  • Animals