Effect of average heterozygosity on the genetic distance of several Indian tribes from the Amazon region
| Autor: | S.E.B. Dos Santos, João Farias Guerreiro, E. J. M. dos Santos |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Heterozygote
Aging Effective size Physiology Epidemiology Biology Bottleneck Loss of heterozygosity Gene Frequency Genetics Humans Amazon rainforest Indians South American Public Health Environmental and Occupational Health Genetic Variation food and beverages Genetic systems Venezuela Genetics Population Genetic distance Evolutionary biology population characteristics Negative correlation Inbreeding Brazil geographic locations |
| Zdroj: | Annals of Human Biology. 21:589-595 |
| ISSN: | 1464-5033 0301-4460 |
| DOI: | 10.1080/03014469400003592 |
| Popis: | SummaryThe relationship between average heterozygosity and genetic distance estimates was evaluated among 13 Amazonian Indian tribes, using data of 24 genetic systems. The results showed that the genetic distances were negatively correlated with the average heterozygosity for each pair of tribes. The relationship between genetic and geographic distances was also examined, but no significant correlation was observed between these measures. The negative correlation between genetic distance and average heterozygosity may be attributed to the bottleneck effect or inbreeding due to the small effective size of several tribes, reducing the heterozygosity and increasing the genetic distance between them. |
| Databáze: | OpenAIRE |
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