SELECTION FOR KNOCKDOWN RESISTANCE TO HEAT IN DROSOPHILA-MELANOGASTERAT HIGH AND LOW LARVAL DENSITIES

Authors
BUBLI OA IMASHEVA AG LOESCHCKE V
Citation
Oa. Bubli et al., SELECTION FOR KNOCKDOWN RESISTANCE TO HEAT IN DROSOPHILA-MELANOGASTERAT HIGH AND LOW LARVAL DENSITIES, Evolution, 52(2), 1998, pp. 619-625
Citations number
47
Categorie Soggetti
Biology Miscellaneous","Genetics & Heredity",Ecology
Journal title
Evolution → ACNP
ISSN journal
00143820
Volume
52
Issue
2
Year of publication
1998
Pages
619 - 625
Database
ISI
SICI code
0014-3820(1998)52:2<619:SFKRTH>2.0.ZU;2-A
Abstract
Responses to short-term selection for knockdown resistance to heat (37 degrees C) in Drosophila melanogaster reared under stressful thigh la rval density) and nonstressful (low larval density) conditions were co mpared. No difference in selection response between density treatments was found. A test of heat resistance (39 degrees C) after pretreatmen t (37 degrees C) did not reveal an increase in survival for selected l ines as compared to controls. Flies reared at high density had higher knockdown resistance throughout the experiment. Resistance to heat was not associated with body size.