• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of pnasPNASInfo for AuthorsSubscriptionsAboutThis Article
Proc Natl Acad Sci U S A. Aug 16, 1994; 91(17): 8127–8131.
PMCID: PMC44558

Contrasting the distribution of chloroplast DNA and allozyme polymorphism among local populations of Silene alba: implications for studies of gene flow in plants.

Abstract

The distribution of chloroplast DNA (cp-DNA) length variants was analyzed within and among 10 local populations of Silene alba, a dioecious angiosperm. The populations displayed considerable allele frequency variation, resulting in an estimate of Wright's Fst of 0.67 over a 25 x 25 km portion of the species' range. By contrast, a concurrent analysis of the genetic structure of these same populations based on seven polymorphic allozyme loci yielded an estimate of Fst of 0.13. The two Fst estimates are significantly different from one another when their respective confidence limits are estimated by jackknifing. The results of a breeding study were consistent with maternal inheritance of the cpDNA variants. With maternal inheritance the genetic structure of the cpDNA should reflect seed movement, whereas the genetic structure of the nuclear-encoded allozyme loci should reflect the movement of both seeds and pollen. Comparison of the two markedly different Fst estimates in the context of recent models of the population genetics of organelles suggests that the movement of both seeds and pollen contributes significantly to gene flow.

Full text

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.1M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Images in this article

Click on the image to see a larger version.

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Sears BB. Elimination of plastids during spermatogenesis and fertilization in the plant kingdom. Plasmid. 1980 Nov;4(3):233–255. [PubMed]
  • Birky CW, Jr, Fuerst P, Maruyama T. Organelle gene diversity under migration, mutation, and drift: equilibrium expectations, approach to equilibrium, effects of heteroplasmic cells, and comparison to nuclear genes. Genetics. 1989 Mar;121(3):613–627. [PMC free article] [PubMed]
  • Hong YP, Hipkins VD, Strauss SH. Chloroplast DNA diversity among trees, populations and species in the California closed-cone pines (Pinus radiata, Pinus muricata and Pinus attenuata). Genetics. 1993 Dec;135(4):1187–1196. [PMC free article] [PubMed]
  • Taberlet P, Gielly L, Pautou G, Bouvet J. Universal primers for amplification of three non-coding regions of chloroplast DNA. Plant Mol Biol. 1991 Nov;17(5):1105–1109. [PubMed]
  • Hale LR, Singh RS. Mitochondrial DNA variation and genetic structure in populations of Drosophila melanogaster. Mol Biol Evol. 1987 Nov;4(6):622–637. [PubMed]
  • Karl SA, Avise JC. Balancing selection at allozyme loci in oysters: implications from nuclear RFLPs. Science. 1992 Apr 3;256(5053):100–102. [PubMed]
  • Taylor DR. The genetic basis of sex ratio in Silene alba (= S. latifolia). Genetics. 1994 Feb;136(2):641–651. [PMC free article] [PubMed]
  • Slatkin M. Gene flow and genetic drift in a species subject to frequent local extinctions. Theor Popul Biol. 1977 Dec;12(3):253–262. [PubMed]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

Formats:

Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...

Links

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...