The genetic load in a northern marginal population of Drosophila subobscura
| Autor: | Diether Sperlich, Anssi Saura, Maija R.J. Kohonen-Corish, Juhani Lokki |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
0106 biological sciences
Genetics 0303 health sciences education.field_of_study Range (biology) Population Zoology Environmental pollution General Medicine Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Drosophila subobscura Genetic load 03 medical and health sciences 13. Climate action Polymorphism (computer science) Inversion polymorphism education Drosophila 030304 developmental biology |
| Zdroj: | Hereditas. 102:255-258 |
| ISSN: | 0018-0661 |
| DOI: | 10.1111/j.1601-5223.1985.tb00624.x |
| Popis: | Wild 0 chromosomes of Drosophila suhohsruru were isolated from three populations in southern Finland. The populations are on the northern margin of the distribution of the species. Lethal frequencies and viabllity effects of wild chromosomes were studied in homozygous and random heterozygous combinations. Thc percentage of chromosomes with lethals was 9.2 70 and with semilethals 10.5 70, These are the lightest loads reported for the species over its range of distrihution; the central populations may have loads about two and a half times heavier. The presence of a light load in a marginal population contmts to the high amount of enzyme polymorphism but agrees with the low amount of inversion polymorphism. Exact measurements of the load are important at the present stage of environmental pollution. |
| Databáze: | OpenAIRE |
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