Disruptive Selection for Sternopleural Chaeta Number in Various Strains of Drosophila melanogaster

1968 ◽  
Vol 102 (928) ◽  
pp. 525-532 ◽  
Author(s):  
Alice J. Chabora
Keyword(s):  
Drosophila Melanogaster ◽  
Disruptive Selection ◽  
Selection For

scholarly journals Disruptive selection on sternopleural chaeta number in Drosophila melanogaster

1967 ◽  
Vol 9 (1) ◽  
pp. 115-118 ◽  
Author(s):  
W. Scharloo ◽  
M. Den Boer ◽  
M. S. Hoogmoed
Keyword(s):  
Drosophila Melanogaster ◽  
Sympatric Speciation ◽  
Disruptive Selection ◽  
Base Population ◽  
Geographical Isolation ◽  
Theoretical Possibility ◽  
Mendelian Population ◽  
Heterogeneous Habitat ◽  
Selection For ◽  
Partial Isolation

It is generally accepted that reproductive isolation leading to the irreversible division of a Mendelian population into two species must be initiated during a period of geographical isolation (see Mayr, 1963). Thoday & Gibson (1962, Gibson & Thoday, 1963) obtained partial isolation within a population of Drosophila melanogaster by artificial disruptive selection for the number of sternopleural chaetae. This occurred in two experiments from the same base population after seven and twelve generations respectively. On the strength of these results they concluded that speciation does not require geographical isolation and that sympatric speciation by disruptive selection in a heterogeneous habitat is at least a theoretical possibility.

Selection for Increased Longevity in Drosophila melanogaster: A Reply to Lints

Gerontology ◽  
1995 ◽  
Vol 41 (2) ◽  
pp. 69-76 ◽  
Author(s):  
Robert Arking ◽  
Steven Buck
Keyword(s):  
Drosophila Melanogaster ◽  
Selection For

scholarly journals Selection for Ethanol Tolerance in Two Populations of Drosophila Melanogaster Segregating Alcohol Dehydrogenase Allozymes

1979 ◽  
Vol 32 (3) ◽  
pp. 387 ◽  
Author(s):  
John B Gibson ◽  
NigeI Lewis ◽  
MichaeI Adena ◽  
Susan R Wilson
Keyword(s):  
Drosophila Melanogaster ◽  
Alcohol Dehydrogenase ◽  
Ethanol Tolerance ◽  
Selection For ◽  
Two Populations

Selection for ethanol tolerance was equally successful in two populations of D. melanogaster in both of which the frequency of AdhF was 0�5 at the start of the experiment.

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