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.
Genetic Diversity in Colonizing Parthenogenetic Cockroaches
E. Davis Parker, Jr., Robert K. Selander, Robert O. Hudson and L. J. Lester
Vol. 31, No. 4 (Dec., 1977), pp. 836-842
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2407445
Page Count: 7
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
Ten clones of Pyconoscelus surinamensis were identified on the basis of variation at five enzyme loci. Clonal variation can be attributed to multiple origin from the bisexual ancestor, P. indicus. Average heterozygosity over 13 loci was .1077 in five diploid clones, .1847 in five triploid clones, and .1073 in a sample of the sexual form, P. indicus. It is suggested that selection occurring prior to colonization events among rarely produced clones in a normally sexual population may favor general purpose genotypes that have sufficient phenotypic adaptability to win in colonizing competition with sexual individuals. Genetic diversity among relatively flexible colonizing clones may further increase the probability of colonizing success of a parthenogenetic race over a sexual population in areas where several habitat types are available.
Evolution © 1977 Society for the Study of Evolution