Enzyme variability in the Drosophila willistoni group. 3. Amounts of variability in the superspecies, D. paulistorum.
Genetics
; 70(1): 87-112, 1972 Jan.
Article
em En
| MEDLINE
| ID: mdl-5013892
ABSTRACT
The semispecies composing the superspecies, Drosophila paulistorum, have been analyzed for genetic variation at 17 enzyme loci. On the average a population of D. paulistorum is polymorphic for 55-67% of its loci and an average individual is heterozygous at 21% of its loci. The pattern of genetic variability found supports the hypothesis that allozyme variation is maintained in natural populations by some form of balancing selection. Evidence is presented which supports the hypothesis that glucose-metabolizing enzymes are less genetically variable than non-glucose-metabolizing enzymes. The known genetic relationships between the semispecies of D. paulistorum are discussed in the light of the frequencies of alleles at allozyme loci.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Variação Genética
/
Drosophila
/
Genética Populacional
Limite:
Animals
País/Região como assunto:
America do sul
Idioma:
En
Ano de publicação:
1972
Tipo de documento:
Article