Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This 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
Evolution
Vol. 31, No. 4 (Dec., 1977), pp. 836-842
DOI: 10.2307/2407445
Stable URL: http://www.jstor.org/stable/2407445
Page Count: 7
  • Read Online (Free)
  • Download ($4.00)
  • Subscribe ($19.50)
  • Cite this Item
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
Preview not available

Abstract

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.

Page Thumbnails

  • Thumbnail: Page 
836
    836
  • Thumbnail: Page 
837
    837
  • Thumbnail: Page 
838
    838
  • Thumbnail: Page 
839
    839
  • Thumbnail: Page 
840
    840
  • Thumbnail: Page 
841
    841
  • Thumbnail: Page 
842
    842