Genetic studies in a tropical pine - Pinus kesiya III. The mating system in four populations from northern Thailand
Single and multilocus estimates of outcrossing rates in four populations of Pinus kesiya from northern Thailand were obtained using isozyme data. Multilocus estimates ranged from 0.68 to 0.97, which are comparable with estimates for other coniferous species. Comparisons of expected and observed inbr...
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| Principais autores: | , , |
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| Formato: | Journal Contribution |
| Idioma: | English |
| Publicado em: |
2017
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| Assuntos: | |
| Acesso em linha: | http://agris.upm.edu.my:8080/dspace/handle/0/12371 |
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| Resumo: | Single and multilocus estimates of outcrossing rates in four
populations of Pinus kesiya from northern Thailand were obtained using isozyme
data. Multilocus estimates ranged from 0.68 to 0.97, which are comparable with
estimates for other coniferous species. Comparisons of expected and observed
inbreeding coefficients indicated excesses of heterozygotes over the frequencies
expected from random mating in two populations. Evidence for spatial
heterogeneity in allele frequencies was strongest in the same two populations,
suggesting the possibility of matings occurring among trees in genetically distinct
groups. In one population (Samoeng) there was an excess of homozygotes,
compared with the equilibrium frequency expected from the estimated outcrossing
rate. |
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