Analysis of paternity within a natural population of Chamaelirium luteum. 1. Identification of most-likely male parents

The most-likely male parents were identified by using genetic markers and evaluating the statistical likelihoods of paternity for seed collected from known female parents within a natural population of the forest herb Chamaelirium luteum. Likelihoods were determined for a total of 2255 seed, of whic...

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Bibliographic Details
Published in:The American naturalist 1986-08, Vol.128 (2), p.199-215
Main Author: Meagher, T.R
Format: Article
Language:English
Subjects:
ANALISIS ESTADISTICO
ANALYSE STATISTIQUE
COPULA
COPULATION
Evolution
Evolutionary genetics
Genetic loci
GENETICA
GENETICS
GENETIQUE
Genotypes
LILIACEAE
Lod score
Mating behavior
PATERNIDAD
PATERNITE
PATERNITY
Plant reproduction
Plants
Population genetics
Seedlings
STATISTICAL ANALYSIS
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Summary:The most-likely male parents were identified by using genetic markers and evaluating the statistical likelihoods of paternity for seed collected from known female parents within a natural population of the forest herb Chamaelirium luteum. Likelihoods were determined for a total of 2255 seed, of which male parents were assigned for a subset of 575 seed. These 575 seed could thus be sorted into male sibships as well as female sibships. Within these partial sibships, males had a higher variance in the number of mates, showing a potential for sex-specific selection. Intermate (pollen-flow) distances were found to show more nearby matings than expected on the basis of random mating; however, the incidence of long-distance pollen flow was high compared to findings from studies on other insect-pollinated species. Finally, the variance in the distance to mates was greater among females than among males, again showing a potential for sex-specific selection. The unique discriminatory power provided by the identification of paternity thus affords new insights into the reproductive biology of natural populations.
ISSN:0003-0147
1537-5323
DOI:10.1086/284554