MDH-polymorphism in Drosophila subobscura: I. Selection and hitch-hiking in laboratory populations
In: Theoretical and Applied Genetics, Jg. 60 (1981-03-01), S. 107-112
Online
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Zugriff:
The interrelation of genic polymorphism at the Malate dehydrogenase (Mdh)-locus and chromosomal polymorphism for superimposed gene arrangements was studied in 5 experimental populations of Drosophila subobscura. It could be shown that chromosomal polymorphism is maintained by balancing selection in favour of the heterozygotes. In contrast, selection at the Mdh-locus itself seems to be of minor importance. The changes of frequency observed for the Mdh-alleles are most probably due to hitch-hiking on the gene blocks enclosed by the chromosomal structures or to selection for tightly linked genes rather than to fitness differences between Mdh-genotypes. The results may be considered as a model for the situation found in natural populations of D. subobscura.
Titel: |
MDH-polymorphism in Drosophila subobscura: I. Selection and hitch-hiking in laboratory populations
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Autor/in / Beteiligte Person: | Pinsker, W. |
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Zeitschrift: | Theoretical and Applied Genetics, Jg. 60 (1981-03-01), S. 107-112 |
Veröffentlichung: | Springer Science and Business Media LLC, 1981 |
Medientyp: | unknown |
ISSN: | 1432-2242 (print) ; 0040-5752 (print) |
DOI: | 10.1007/bf00282426 |
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