Skip to main content
SpringerLink
Log in

Dissimilar patterns of genetic variation in two insular endemic plants sharing species characteristics, distribution, habitat, and ecological history

  • Published:
Conservation Genetics Aims and scope Submit manuscript

Abstract

Camssonia guadalupensis ssp. clementina (Onagraceae) and Cryptantha traskiae (Boraginaceae) share many species characteristics that affect levels and pattern of genetic variation. In addition, they have a similar distribution, are found in the same habitat, and share ecological history by virtue of co-occurring at nearly all of the locations at which they are found. All populations of the two taxa on San Clemente Island were surveyed for genotypes at 16 allozyme loci, revealing generally low levels of genetic variation. However, Cam. g. clementina has more genetic variation than Cryp. traskiae at the taxon level (P = 37.5 versus 18.8, A = 1.69 versus 1.31, and HE = 0.088 versus 0.003) and significantly more alleles and higher heterozygosity within populations (A = 1.09 versus 1.03, AE = 1.02 versus 1.00; HO = 0.013 versus 0.001 and HE = 0.017 versus 0.003). Some populations of each taxon are monomorphic at all loci. Much greater differentiation among populations occurs in Cam. g. clementina (GST = 0.810) than in Cryp. traskiae (GST = 0.042). Locations of the more variable populations of each taxon do not coincide, and the pattern of genetic similarity of localities differs in the two taxa. Striking population genetic differences exist between these taxa despite shared species characteristics, distribution, habitat, and recent history.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • SA Bekessy RA Ennos MA Burgman AC Newton PK Ades (2003) ArticleTitleNeutral DNA markers fail to detect genetic divergence in an ecologically important trait Biol. Conserv. 110 267–275

    Google Scholar 

  • AHD Brown (1979) ArticleTitleEnzyme polymorphism in plant populations Theor. Popul. Biol. 15 1–42

    Google Scholar 

  • CT Cole (2003) ArticleTitleGenetic variation in rare and common plants Annu. Rev. Ecol. Syst. 34 213–237

    Google Scholar 

  • CC Constantine RP Hobbs AJ Lymbery (1994) ArticleTitleFORTRAN programs for analyzing population structure from multilocus genotypic data J. Hered. 85 336–337

    Google Scholar 

  • SC Dodd K Helenurm (2002) ArticleTitleGenetic diversity in Delphinium variegatum (Ranunculaceae): a comparison of two insular endemic subspecies and their widespread mainland relative Am. J. Bot. 89 613–622

    Google Scholar 

  • MA Gitzendanner PS Soltis (2000) ArticleTitlePatterns of genetic variation in rare and widespread plant congeners Am. J. Bot. 87 783–792

    Google Scholar 

  • LD Gottlieb (1981) ArticleTitleElectrophoretic evidence and plant populations Progress in Phytochemistry 7 1–46

    Google Scholar 

  • JL Hamrick YB Linhart JB Mitton (1979) ArticleTitleRelationships between life history characteristics and electrophoretically detectable genetic variation in plants Annu. Rev. Ecol. Syst. 10 173–200

    Google Scholar 

  • JL Hamrick (1983) The distribution of genetic variation within and among natural plant populations CM Schonewald-Cox SM Chambers B MacBryde WL Thomas (Eds) Genetics and Conservation Benjamin/Cummings Menlo Park, CA 335–348

    Google Scholar 

  • JL Hamrick MJW Godt (1989) Allozyme diversity in plant species AHD Brown MT Clegg AT Kahler BS Weir (Eds) Plant Population Genetics, Breeding, and Genetic Resources Sinauer Associates Sunderland, MA 43–63

    Google Scholar 

  • JL Hamrick MJW Godt (1996a, b) ArticleTitleEffects of life history traits on genetic diversity in plant species Philos. T. Roy. Soc. Lond. B. 351 1291–1298

    Google Scholar 

  • JL Hamrick MJW Godt (1996a, b) Conservation genetics of endemic plant species JC Avise JL Hamrick (Eds) Conservation genetics: Case histories from nature Chapman and Hall New York 281–304

    Google Scholar 

  • H Harris (1966) ArticleTitleEnzyme polymorphism in man Proc. R. Soc. Lond. B. 164 298–310

    Google Scholar 

  • DL Hartl AG Clark (1989) Principles of population genetics Sinauer Associates, Inc. Sunderland, MA

    Google Scholar 

  • K Helenurm (2001) ArticleTitleHigh levels of genetic polymorphism in the insular endemic herb Jepsonia malvifolia J. Hered. 92 427–432

    Google Scholar 

  • K Helenurm (2003) ArticleTitleGenetic diversity in the rare, insular endemic Sibara filifolia (Brassicaceae) Madrono 50 181–186

    Google Scholar 

  • Helenurm K, West R, Burckhalter SJ (2005) Allozyme variation in the endangered insular endemic Castilleja grisea. Ann Bot-London, In press.

  • WS Judd CS Campbell EA Kellogg PF Stevens (1999) Plant Systematics: A Phylogenetic Approach Sinauer Associates, Inc. Sunderland, Massachusetts

    Google Scholar 

  • S Junak T Ayers R Scott D Wilken D Young (1995) A Flora of Santa Cruz Island Santa Barbara Botanic Garden Santa Barbara, CA

    Google Scholar 

  • JD Karron (1987) ArticleTitleA comparison of levels of genetic polymorphism and self-compatibility in geographically restricted and widespread plant congeners Evol. Ecol. 1 47–58

    Google Scholar 

  • WA Kelley DH Wilken (1993) Cryptantha JC Hickman (Eds) The Jepson manual: Higher Plants of California University of California Press Berkeley, California 369–377

    Google Scholar 

  • RC Lewontin JH Hubby (1966) ArticleTitleA molecular approach to the study of genic heterozygosity in natural populations. II. Amount of variation and degree of heterozygosity in natural populations of Drosophila pseudoobscura Genetics 54 595–609

    Google Scholar 

  • MD Loveless JL Hamrick (1984) ArticleTitleEcological determinants of genetic structure in plant populations Annu. Rev. Ecol. Syst. 15 65–95

    Google Scholar 

  • N Mantel (1967) ArticleTitleThe detection of disease clustering and a generalized regression approach Cancer Res. 27 209–220

    Google Scholar 

  • J Merila P Crnokrak (2001) ArticleTitleComparison of genetic differentiation at marker loci and quantitative traits J. Evol. Biol. 14 892–903

    Google Scholar 

  • PA Munz (1974) A flora of Southern California University of California Press Berkeley, California

    Google Scholar 

  • RW Murphy JW Sites DB Buth CH Haufler (1990) Proteins I: Isozyme electrophoresis DM Hillis C Moritz (Eds) Molecular Systematics Sinauer Associates Sunderland, MA 45–127

    Google Scholar 

  • M Nei (1973) ArticleTitleAnalysis of gene diversity in subdivided populations Proc. Natl. Acad. Sci. USA 70 3321–3323

    Google Scholar 

  • M Nei (1977) ArticleTitleF-statistics and analysis of gene diversity in subdivided populations Ann. Hum. Genet. 41 225–233

    Google Scholar 

  • M Nei (1978) ArticleTitleEstimation of average heterozygosity and genetic distance from a small number of individuals Genetics 89 583–590

    Google Scholar 

  • PG O’Malley (1994) Animal husbandry on the three southernmost Channel Islands: A preliminary overview, 1820–1950 WL Halvorson GJ Maender (Eds) The Fourth California Islands Symposium: Update on the Status of Resources Santa Barbara Museum of Natural History Santa Barbara, California 157–164

    Google Scholar 

  • Y-L Qiu J Lee F Bernasconi-Quadroni DE Soltis PS Soltis M Zanis EA Zimmer Z Chen V Savolainen MW Chase (1999) ArticleTitleThe earliest angiosperms: evidence from mitochondrial, plastid and nuclear genomes Nature 402 404–407

    Google Scholar 

  • PH Raven (1969) ArticleTitleA revision of the genus Camissonia (Onagraceae). Contributions from the United Sates National Herbarium 37 161–396

    Google Scholar 

  • DH Reed R Frankham (2001) ArticleTitleHow closely correlated are molecular and quantitative measures of genetid variation? A meta-analysis Evolution 55 1095–1103

    Google Scholar 

  • DH Reed R Frankham (2003) ArticleTitleCorrelation between fitness and genetic diversity Conserv. Biol. 17 230–237

    Google Scholar 

  • JS Rogers (1972) ArticleTitleMeasures of genetic similarity and genetic distance. Studies in Genetics VII University of Texas Publication 7213 145–153

    Google Scholar 

  • MJ Sanderson JA Doyle (2001) ArticleTitleSources of error and confidence intervals in estimating the age of angiosperms from rbcL and 18S rDNA data Am. J. Bot. 88 1499–1516

    Google Scholar 

  • M Slatkin (1985) ArticleTitleRare alleles as indicators of gene flow. Evolution 39 53–65

    Google Scholar 

  • M Slatkin (1994) Gene flow and population structure. LA Real (Eds) Ecological Genetics Princeton University Press Princeton, New Jersey, USA 3–17

    Google Scholar 

  • DE Soltis CH Haufler DC Darrow GH Gastony (1983) ArticleTitleStarch gel electrophoresis of ferns: a compilation of grinding buffers, gel and electrode buffers, and staining schedules Am. Fern. J. 73 9–27

    Google Scholar 

  • PS Soltis DE Soltis MW Chase (1999) ArticleTitleAngiosperm phylogeny inferred from multiple genes as a tool for comparative biology Nature 402 402–404

    Google Scholar 

  • Wagner WL, Raven PH (1993) Onagraceae. In: (ed. Hickman JC), pp. 776–804. University of California Press, Berkeley, California

  • GD Wallace (1985) Vascular Plants of the Channel Islands of Southern California and Guadalupe Island, Baja California, Mexico Contributions in Science No. 365. Natural History Museum of Los Angeles County Los Angeles, California

    Google Scholar 

  • MC Whitlock DE McCauley (1999) ArticleTitleIndirect measures of gene flow and migration: FST ≠ 1/(4 Nm+1) Heredity 82 541–550

    Google Scholar 

  • S Wright (1951) ArticleTitleThe genetic structure of populations Ann. Eugenic. 15 323–354

    Google Scholar 

  • AG Young AHD Brown (1996) ArticleTitleComparative population genetic structure of the rare woodland shrub Daviesia suaveolens and its common congener D. mimosoides Conserv. Biol. 10 1220–1228

    Google Scholar 

  • AG Young AHD Brown FA Zich (1999) ArticleTitleGenetic structure of fragmented populations of the endangered daisy Rutidosis leptorrhynchoides Conserv. Biol. 13 256–265

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Biology, University of South Dakota, Vermillion, South Dakota, 57069, USA

    Kaius Helenurm

  2. Department of Biology, San Diego State University, San Diego, California, 92182, USA

    Suzanne S. Hall

Authors
  1. Kaius Helenurm
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Suzanne S. Hall
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Kaius Helenurm.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Helenurm, K., Hall, S.S. Dissimilar patterns of genetic variation in two insular endemic plants sharing species characteristics, distribution, habitat, and ecological history. Conserv Genet 6, 341–353 (2005). https://doi.org/10.1007/s10592-005-4969-z

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10592-005-4969-z

Key words

Search

Navigation