You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Enzyme Null Alleles in Natural Populations of Drosophila melanogaster: Frequencies in a North Carolina Population
Robert A. Voelker, Charles H. Langley, Andrew J. Leigh Brown, Seido Ohnishi, Barbara Dickson, Elizabeth Montgomery and Sandra C. Smith
Proceedings of the National Academy of Sciences of the United States of America
Vol. 77, No. 2, [Part 2: Biological Sciences] (Feb., 1980), pp. 1091-1095
Published by: National Academy of Sciences
Stable URL: http://www.jstor.org/stable/8387
Page Count: 5
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
A Raleigh, NC, population of Drosophila melanogaster was sampled for the presence of enzyme null alleles at 25 loci. No nulls were found at any of five X-linked loci. Nulls were recovered at 13 of 20 autosomal loci; the weighted mean frequency for all 20 autosomal loci was estimated to be 0.0025. A consideration of the effects of these null alleles on viability strongly suggests that, although they may contribute to so-called polygenic variation, they are not representative of the entire genome.
Proceedings of the National Academy of Sciences of the United States of America © 1980 National Academy of Sciences