Skip to main content
Log in

Gene variation and gene flow inOrchis morio (Orchidaceae) from Italy

  • Published:
Plant Systematics and Evolution Aims and scope Submit manuscript

Abstract

Data are presented on genetic variation at 27 enzyme loci of the Green-Winged orchid,Orchis morio, in 18 population samples from Italy. The existence in Italy of two subspecies, i.e. subspp.morio andpicta, is not supported by allozyme data. No genetic heterogeneity was found betweenmorio-like andpicta-like samples and specimens. Moreover, morphological transition between the two forms was observed in different Italian populations. The parameters of genetic variability estimated forO. morio populations are consistent with those found among monocotyledon plants, and among those outcrossing, animal-pollinated and with wind-dispersed seeds. Genetic diversity of ItalianO. morio is mostly within populations. Correspondingly, low values of interpopulational genetic distance were found. This appears to be due to high levels of gene flow, which were estimated with different methods. The lack ofO. longicornu from Italian samples, as well as of any hybrid withO. morio (F1, backcrossed or recombinant individuals) is demonstrated on the basis of genetic data. It is concluded that recurrent reports ofO. longicornu from Italy are due to confusion withO. morio or with otherOrchis species.

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

Access this article

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

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Barton, N. H., Slatkin, M., 1986: A quasi-equilibrium theory of the distribution of rare alleles in a subdivided population. — Heredity56: 409–415.

    PubMed  Google Scholar 

  • Baumann, H., Künkele, S., 1982: Die wildwachsenden Orchideen Europas. — Stuttgart: Kosmos, Gesellschaft der Naturfreunde, Frankh'sche Verlagshandlung.

    Google Scholar 

  • Bullini, L., Arduino, P., Cianchi, R., 1989: L'elettroforesi multilocus nello studio della variabilità e della divergenza genetica nelle piante. — Atti Soc. Tosc. Sci. Nat. Mem., Ser. B,96: 267–305.

    Google Scholar 

  • Buttler, K. P., 1986: Orchideen. Die wildwachsenden Arten und Unterarten Europas, Vorderasiens und Nordafrikas. — München: Mosaik Verlag.

    Google Scholar 

  • Corrias, B., Rossi, W., Arduino, P., Cianchi, R., Bullini, L., 1991:Orchis longicornu Poiret in Sardinia: genetic, morphological, and chorological data. — Webbia45: 71–101.

    Google Scholar 

  • Crow, J. F., Aoki, K., 1984: Group selection for a polygenic behavioral trait: estimating the degree of population subdivision. — Proc. Natl. Acad. Sci. U.S.A.81: 6073–6077.

    PubMed  Google Scholar 

  • Davies, P., Davies, J., Huxley, A., 1983: Wild Orchids of Britain and Europe. — London: Chatto & Windus.

    Google Scholar 

  • Delforge, P., Tyteca, D., 1984: Guide des orchidées d'Europe. — Paris-Gembloux: Duculot.

    Google Scholar 

  • Del Prete, C., Tosi, G., 1988: Orchidee spontanee d'Italia. Monografia e iconografia. — Milano: Mursia.

    Google Scholar 

  • Fiori, A., 1923–1925: Nuova flora analitica d'Italia. — Firenze: Ricci.

    Google Scholar 

  • Gölz, P., Reinhard, H. R., 1984: Die Orchideenflora Albaniens. — Mitt. Bl. Arbeitskr. Heim. Orch. Baden-Württ.16: 193–394.

    Google Scholar 

  • Gottlieb, L. D., 1981: Electrophoretic evidence and plant populations. — Prog. Phytochem.7: 1–46.

    Google Scholar 

  • Hamrick, J. L., Linhart, Y. B., Mitton, B., 1979: Relationship between life history characteristics and electrophoretically detectable genetic variation in plants. — Ann. Rev. Ecol. Syst.10: 173–200.

    Google Scholar 

  • —, 1990: Allozyme diversity in plant species. — InBrown, A. D. H., Clegg, M. T., Kahler, A. L., Weir, B. S., (Eds.): Plant population genetics, breeding and genetic resources, pp. 43–63. — London, New York: Sinauer.

    Google Scholar 

  • Johnson, G. B., 1974: Enzyme polymorphism and metabolism. — Science184: 28–37.

    PubMed  Google Scholar 

  • Kruskal, J. B., 1964a: Multidimensional scaling by optimizing goodness of fit to a nonmetric hypothesis. — Psychometrika29: 1–27.

    Google Scholar 

  • —, 1964b: Nonmetric multidimensional scaling: a numerical method. — Psychometrika29: 28–42.

    Google Scholar 

  • Levene, H., 1949: On a matching problem arising in genetics. — Ann. Math. Stat.20: 91–94.

    Google Scholar 

  • Loveless, M. D., Hamrick, J. L., 1984: Ecological determinants of genetic structure in plant populations. — Ann. Rev. Ecol. Syst.15: 65–95.

    Google Scholar 

  • Nei, M., 1972: Genetic distance between populations. — Amer. Naturalist106: 283–292.

    Google Scholar 

  • —, 1973: Analysis of gene diversity in subdivided populations. — Proc. Natl. Acad. Sci. U.S.A.70: 3321–3323.

    PubMed  Google Scholar 

  • —, 1978: Estimation of average heterozygosity and genetic distance from a small number of individuals. — Genetics89: 583–590.

    Google Scholar 

  • Nilsson, L. A., 1984: Anthecology ofOrchis morio (Orchidaceae) at its outpost in the North. — Nova Acta Reg. Soc. Sci. Upsal., Ser. V: C,3: 167–179.

    Google Scholar 

  • Pignatti, S., 1982: Flora d'Italia. — Bologna: Edagricole.

    Google Scholar 

  • Rogers, J. S., 1972: Measures of genetic similarity and genetic distance. — Studies in Genetics VII. — Univ. Texas Publ. (Austin)7213: 145–153.

    Google Scholar 

  • Rossi, W., Bassani, P., 1985: Orchidee spontanee del Lazio. — Roma: Edizioni Coopsit.

    Google Scholar 

  • Sarich, V. M., 1977: Rates, sample sizes and the neutrality hypothesis for electrophoresis in evolutionary studies. — Nature265: 24–28.

    PubMed  Google Scholar 

  • Scacchi, R., De Angelis, G., Lanzara, P., 1990: Allozyme variation among and within elevenOrchis species (fam.Orchidaceae), with special reference to hybridizing aptitude. — Genetica81: 143–150.

    Google Scholar 

  • Schlegel, M., Steinbrück, G., Hahn, K., Röttger, B., 1989: Interspecific relationship of ten European orchid species as revealed by enzyme electrophoresis. — Pl. Syst. Evol.163: 107–119.

    Google Scholar 

  • Slatkin, M., 1981: Estimating levels of gene flow in natural populations. — Genetics99: 323–335.

    Google Scholar 

  • —, 1985a: Gene flow in natural populations. — Ann. Rev. Ecol. Syst.16: 393–430.

    Google Scholar 

  • —, 1985b: Rare alleles as indicators of gene flow. — Evolution39: 53–65.

    Google Scholar 

  • Slatkin, M., Barton, N. H., 1989: A comparison of three indirect methods for estimating average levels of gene flow. — Evolution43: 1349–1368.

    Google Scholar 

  • Sokal, R. R., Rohlf, F. J., 1981: Biometry. 2nd edn. — San Francisco: Freeman.

    Google Scholar 

  • Soó, R. von, 1980:Orchis. — InTutin, T. G., & al. (Eds.): Flora Europaea5: 339. — Cambridge: Cambridge University Press.

    Google Scholar 

  • Sundermann, H., 1980: Europäische und mediterrane Orchideen. Eine Bestimmungsflora, mit Berücksichtigung der Ökologie. — Hildesheim: Brücke-Verlag Kurt Schmersow.

    Google Scholar 

  • Terracciano, N., 1891: Synopsis Plantarum vascularium Montis Pollinii. — Annuario R. Ist. Bot. Roma4 (1889–1890): 1–191.

    Google Scholar 

  • Williams, J. G., Williams, A. E., Arlott, N., 1978: A field guide to the orchids of Britain and Europe with North Africa and the Middle east. — London: Collins.

    Google Scholar 

  • Workman, P. L., Niswander, J. D., 1970: Population studies on southwestern Indian tribes. II. Local genetic differentiation in the Papago. — Amer. J. Hum. Genet.22: 24–49.

    PubMed  Google Scholar 

  • Wright, S., 1931: Evolution in Mendelian populations. — Genetics16: 97–159.

    Google Scholar 

  • —, 1951: The genetical structure of populations. — Ann. Eugen.15: 323–354.

    Google Scholar 

  • —, 1978: Evolution and the genetics of populations, 4. Variability within and among natural populations. — Chicago: University of Chicago Press.

    Google Scholar 

  • Zangheri, P., 1976: Flora italica. — Padova: Cedam.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Rossi, W., Corrias, B., Arduino, P. et al. Gene variation and gene flow inOrchis morio (Orchidaceae) from Italy. Pl Syst Evol 179, 43–58 (1992). https://doi.org/10.1007/BF00938018

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00938018

Key words

Navigation