Document Detail

Patterns of molecular variation. II. associations of electrophoretic mobility and larval substrate within species of the Drosophila mulleri complex.
MedLine Citation:
PMID:  838268     Owner:  NLM     Status:  MEDLINE    
Electromorphic variation among populations of Drosophila mojavensis, D. arizonensis and D. longicornis was examined for seven genetic loci. The average electrophoretic mobility for a population was used as the metric. D. mojavensis and D. arizonensis use larval substrates in different parts of their geographic ranges, while D. longicornis is more narrowly restricted to different species of the cactus Opuntia in different localities. There is marked electromorphic variation among populations of either D. mojavensis of D. arizonensis, and the bulk of this variation is accounted for by differences in laval substrate. There is somewhat less variation among populations of D. longicornis, and only a moderate portion of this is accounted for by larval substrate differences. There appears to be an association between the taxonomic diversity of the larval substrates and the electromorphic diversity of the Drosophila populations utilizing those substrates. Evidence is reviewed that suggests physiological mechanisms for these possibly adaptive associations.
R H Richardson; P E Smouse; M E Richardson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Genetics     Volume:  85     ISSN:  0016-6731     ISO Abbreviation:  Genetics     Publication Date:  1977 Jan 
Date Detail:
Created Date:  1977-04-30     Completed Date:  1977-04-30     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0374636     Medline TA:  Genetics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  141-54     Citation Subset:  IM    
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MeSH Terms
Alcohol Oxidoreductases / metabolism
Aldehyde Oxidoreductases / metabolism
Aspartate Aminotransferases / metabolism
Drosophila / enzymology*
Esterases / metabolism
Malate Dehydrogenase / metabolism
Phosphoglucomutase / metabolism
Polymorphism, Genetic*
Species Specificity
Reg. No./Substance:
EC 1.1.-/Alcohol Oxidoreductases; EC Dehydrogenase; EC 1.2.-/Aldehyde Oxidoreductases; EC Aminotransferases; EC 3.1.-/Esterases; EC

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