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- Title
Adaptation of Drosophila melanogaster to increased NaCl concentration due to dominant beneficial mutations.
- Authors
Zhang, Mingcai; Azad, Priti; Woodruff, R.
- Abstract
New beneficial mutations, combined with selection, were responsible for quick adaptation of Drosophila melanogaster to a novel environment. Using a highly inbred homozygous stock of D. melanogaster, we observed that in thirty generations the original stock had evolved to resist a previously toxic level of dietary salt (NaCl) and to produce a significantly higher number of progeny when reared in elevated salt concentrations. Survival in higher salt-stressed environments was due to new dominant genetic changes on the second and third chromosomes.
- Subjects
DROSOPHILA melanogaster; ANIMAL adaptation; ANIMAL mutation; CHROMOSOMES; ANIMAL genetics; ANIMAL breeding
- Publication
Genetica, 2011, Vol 139, Issue 2, p177
- ISSN
0016-6707
- Publication type
Article
- DOI
10.1007/s10709-010-9535-z