Skip to main content
SpringerLink
Log in

Hybridisation, genomic constitution and generic delimitation in Elymus s. l. (Poaceae: Triticeae)

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

Abstract

Intergeneric crosses were made between representatives of the genomically-defined generaElymus, Agropyron, Elytrigia, Pseudoroegneria, andThinopyrum. The genomic constitution ofElytrigia repens, the type species ofElytrigia, is shown to be SSH, a genomic combination otherwise found only inElymus. The S genome ofPseudoroegneria has almost always a dominant influence on the morphology of the taxa of which it is a component.Wang (1989) showed that the J genome inThinopyrum and the S genome have considerable homoeology, with a mean c-value of 0.35 in diploid SJ hybrids. A genetic coherence from S to SJe, Je, JeJb, and Jb can be expected, agreeing with the continuous morphologic variation pattern observed. Because of the absence of morphological discontinuities between the taxa,Pseudoroegneria (S),Elymus (SH, SY, sometimes with additional genomes),Elytrigia (SSH, SSHX), andThinopyrum (SJ, SJJ, J) are best treated as a single genus,Elymus, following the generic concept ofMelderis in Flora Europaea and Flora of Turkey. The basic genomic constituents ofElymus will then be the S and/or J genomes.Agropyron, with diploids, tetraploids, and hexaploids based on the P genome is morphologically distinct from other genera inTriticeae. In a few species ofElymus andPseudoroegneria, a P genome is an additional constituent. In these cases the P genome has a negligible morphological influence. Therefore, it seems reasonable to maintainAgropyron as a separate genus.

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

  • Baden, C., 1991: A taxonomic revision ofPsathyrostachys (Poaceae). — Nordic J. Bot.11: 3–26.

    Google Scholar 

  • Barkworth, M. E., Dewey, D. R., Atkins, R. J., 1983: New generic concepts in theTriticeae of the intermountain region: key and comments. — Great Basin Naturalist43: 561–572.

    Google Scholar 

  • Baum, B. R., Estes, J. R., Gupta, P. K., 1987: Assessment of the genomic system of classification in theTriticeae. — Amer. J. Bot.74: 1388–1395.

    Google Scholar 

  • Bentham, G., 1881: Notes onGramineae. — J. Linn. Soc. London Bot.19: 14–134.

    Google Scholar 

  • Bor, N. L., 1970:Gramineae. — InRechinger, K. H., (Ed.): Flora Iranica,70. — Graz: Akademische Druck- u. Verlagsanstalt.

    Google Scholar 

  • Bothmer, R. von, Flink, J., Jacobsen, N., Kotimäki, M., Landström, T., 1983: Interspecific hybridization with cultivated barley (Hordeum vulgare L.). — Hereditas99: 219–244.

    Google Scholar 

  • —, 1991: An ecogeographical study of the genusHordeum. Systematic and ecogeographic studies on crop genepools7. — Rome: Intern. Board for Plant Genetic Resources.

    Google Scholar 

  • -Lu, B.-R., Linde-Laursen, I., 1995: Intergeneric hybridization and C-banding patterns inHordelymus (Triticeae: Poaceae). — Pl. Syst. Evol. (in press.)

  • Cauderon, Y., 1966: Genome analysis in the genusAgropyron. — Hereditas Suppl.2: 218–234.

    Google Scholar 

  • —, 1961: New interspecific and intergeneric hybrids involvingAgropyron. — Wheat Inform. Serv.12: 13–14.

    Google Scholar 

  • Clayton, W. D., Renvoize, S. A., 1986: Genera graminum, grasses of the world. — Kew Bull., addit. ser.,13.

  • Dewey, D. R., 1965: Synthetic hybrids of new world and old world Agropyrons, II.Agropyron riparium ×Agropyron repens. — Amer. J. Bot.52: 1039–1045.

    Google Scholar 

  • —, 1967: Synthetic hybrids of new world and old world Agropyrons, IV. TetraploidAgropyron spicatum f.inerme × tetraploidAgropyron desertorum. — Amer. J. Bot.54: 403–409.

    Google Scholar 

  • —, 1972: The origin ofAgropyron leptorum. — Amer. J. Bot.59: 836–842.

    Google Scholar 

  • —, 1980: Morphological, cytological, and taxonomic relationships betweenAgropyron repens andA. elongatiforme (Gramineae). — Syst. Bot.5: 61–70.

    Google Scholar 

  • —, 1984: The genomic system of classification as a guide to intergeneric hybridization with the perennialTriticeae. — InGustafson, J. P., (Ed.): Gene manipulation in plant improvement. Proc. 16th. Stadler Genetics Symp., Columbia 1984, pp. 209–279. — New York: Plenum.

    Google Scholar 

  • —, 1975: The crested wheatgrasses of Iran. — Crop Sci.15: 844–849.

    Google Scholar 

  • Farr, E. R., Leussink, J. A., Stafleu, F. A., (Eds), 1979: Index nominum genericorum (plantarum). — Utrecht: Bohm, Scheltema & Holkema.

    Google Scholar 

  • Gould, F. W., 1947: Nomenclatorial changes inElymus with a key to the Californian species. — Madroño9: 120–128.

    Google Scholar 

  • Gupta, P. K., Fedak, G., 1985: Genetic control of meiotic chromosome pairing in polyploids in the genusHordeum. — Canad. J. Genet. Cytol.27: 515–530.

    Google Scholar 

  • Heneen, W. K., 1963: Cytology of the intergeneric hybridElymus arenarius ×Secale cereale. — Hereditas49: 61–77.

    Google Scholar 

  • Holmgren, P. K., Holmgren, N. H., Barnett, L. C., 1990: Index Herbariorum. Part 1. The herbaria of the world. 8th edn. — New York: New York Bot. Gard.

    Google Scholar 

  • Hsiao, C., Wang, R. R.-C., Dewey, D. R., 1986: Karyotype analysis and gene relationships of 22 diploid species in the tribeTriticeae. — Canad. J. Genet. Cytol.28: 109–120.

    Google Scholar 

  • Jarvie, J. K., 1992: Taxonomy ofElytrigia sect.Caespitosae and sect.Junceae (Gramineae: Triticeae). — Nordic J. Bot.12: 155–169.

    Google Scholar 

  • —, 1992: Morphological variation and genome constitution in some perennialTriticeae. — Bot. J. Linn. Soc.108: 167–180.

    Google Scholar 

  • Jensen, K. B., 1990a: Cytology, fertility, and morphology ofElymus kengii (Keng)Tzvelev andE. grandiglumis (Keng)A. Löve (Triticeae: Poaceae). — Genome33: 563–570.

    Google Scholar 

  • —, 1990b: Cytology and taxonomy ofElymus kengii, E. grandiglumis, E. alatavicus, andE. batalinii (Triticeae: Poaceae). — Genome33: 668–673.

    Google Scholar 

  • —, 1992: Cytology and morphology ofPseudoroegneria deweyi (Poaceae: Triticeae): a new species from the foothills of the Caucasus mountains (Russia). — Canad. J. Bot.70: 900–909.

    Google Scholar 

  • Kellogg, E. A., 1989: Comments on genomic genera in theTriticeae (Poaceae). — Amer. J. Bot.76: 796–805.

    Google Scholar 

  • Kihara, H., Nishiyama, I., 1930: Genomanalyse beiTriticum undAegilops. I. Genomaffinitäten in tri-, tetra- und pentaploiden Weizenbastarden. — Cytologia1: 163–284.

    Google Scholar 

  • Linde-Laursen, I., Bothmer, R. von, Jacobsen, N., 1980: Giemsa C-banding in Asiatic taxa ofHordeum sectionStenostachys with notes on chromosome morphology. — Hereditas93: 235–254.

    Google Scholar 

  • Linnaeus, C., 1753: Species plantarum. — Holmiae.

  • Liu, Z. W., Wang, R. R.-C., 1989: Genome analysis ofThinopyrum caespitosum. — Genome32: 141–145.

    Google Scholar 

  • —, 1993: Genome analysis ofElytrigia caespitosa, Lophopyrum nodosum, Pseudoroegneria geniculata ssp.scythica, andThinopyrum intermedium (Triticeae: Gramineae). — Genome36: 102–111.

    CAS  PubMed  Google Scholar 

  • Löve, A., 1984: Conspectus of theTriticeae. — Feddes Repert.95: 425–521.

    Google Scholar 

  • —, 1986: Some taxonomical adjustments in Eurasiatic wheatgrasses. — Veröff. Geobot. Inst. ETH, Stiftung Rübel, Zürich87: 43–52.

    Google Scholar 

  • Lu, B.-R., 1993: Biosystematic investigations of Asiatic wheatgrasses,Elymus L. (Triticeae: Poaceae). — Svalöv.

  • —, 1990: Intergeneric hybridization betweenHordeum and AsiaticElymus. — Hereditas112: 109–116.

    Google Scholar 

  • —, 1992: Interspecific hybridization betweenElymus himalayanus andE. schrenkianus, and otherElymus species (Triticeae: Poaceae). — Genome35: 230–237.

    Google Scholar 

  • Melderis, A., 1978: Taxonomic notes on the tribeTriticeae (Gramineae) with special reference to the generaElymus L. sensu lato andAgropyron sensu lato. — Bot. J. Linn. Soc.76: 369–384.

    Google Scholar 

  • —, 1980:Elymus. — InTutin, T. G., & al., (Eds): Flora Europaea,5, pp. 192–198. — Cambridge, U.K.: Cambridge University Press.

    Google Scholar 

  • —, 1985:Elymus. — InDavis, P. H., (Ed.): Flora of Turkey,9, pp. 206–227. — Edinburgh: Edinburgh University Press.

    Google Scholar 

  • Nevski, S. A., 1933: Agrostologische Studien, IV. Über das System der TribeHordeaeBenth. — Trud. Bot. Inst. Akad. Nauk. SSSR. ser. 1, Fl. et Syst. Pl. Vasc.1: 9–32.

    Google Scholar 

  • - 1934:HordeaeBenth. — InKomarov, V. L., (Ed.): Flora of the URSS,2: 590–728. — Leningrad.

  • —, 1936: Verzeichnis der Gräser aus den TribenLolieae, Nardeae, Leptureae undHordeae der USSR. — Trud. Bot. Inst. Akad. Nauk. SSSR. ser. 1, Fl. et Syst. Pl. Vasc.2: 33–90.

    Google Scholar 

  • Pienaar, R. de V., Littlejohn, G. M., Sears, E. R., 1988: Genomic relationships inThinopyrum. — S African J. Bot.54: 541–550.

    Google Scholar 

  • Runemark, H., Heneen, W. K., 1968:Elymus undAgropyron, a problem of generic delimitation. — Bot. Not.121: 51–79.

    Google Scholar 

  • Seberg, O., 1989: Genome analysis, phylogeny, and classification. — Pl. Syst. Evol.166: 159–171.

    Google Scholar 

  • —, 1991:Peridictyon, a new genus from the Balkan Peninsula, and its relationship withFestucopsis (Poaceae). — Willdenowia21: 87–104.

    Google Scholar 

  • Smith, D. C., 1942: Intergeneric hybridization of cereals and other grasses. — J. Agric. Res.64: 33–47.

    Google Scholar 

  • Snow, R., 1963: Alcoholic hydrochloric acid-carmine as a stain for chromosome squash preparation. — Stain Technol.38: 9–13.

    CAS  PubMed  Google Scholar 

  • Stebbins, G. L., 1956: Taxonomy and the evolution of genera, with special reference to the familyGramineae. — Evolution10: 235–245.

    Google Scholar 

  • Torabinejad, J., Mueller, R. J., 1993: Genome constitution of the Australian hexaploid grassElymus scabrus (Poaceae: Triticeae). — Genome36: 147–151.

    CAS  PubMed  Google Scholar 

  • Tzvelev, N. N., 1974:Triticeae. — InFedorov, A. A., (Ed.): Flora Part. Eur. URSS1, pp. 136–172. — Leningrad.

    Google Scholar 

  • —, 1976: InFedorov, A. A., (Ed.):Poaceae URSS. — Leningrad, Nauk Publication House. English version bySharma, B. R., 1984: InKothekar, V. S., (Ed.): Grasses of the Soviet Union. — Rotterdam: Balkema.

    Google Scholar 

  • Wang, R. R.-C., 1989: An assessment of genome analysis based on chromosome pairing in hybrids of perennialTriticeae. — Genome32: 179–189.

    Google Scholar 

  • —, 1986: Genome analysis of the tetraploidPseudoroegneria tauri. — Crop Sci.26: 723–727.

    Google Scholar 

  • Yang, J.-L., Yen, C., Baum, B. R., 1992:Kengyilia: synopsis and key to species. — Hereditas116: 25–28.

    Google Scholar 

  • Yen, C., Yang, J.-L., 1990:Kengyilia gobicola, a new taxon from West China. — Canad. J. Bot.68: 1894–1897.

    Google Scholar 

Download references

Author information

Author notes

  1. M. Assadi

    Present address: Research Institute of Forests and Rangelands, P.O. Box 13185-116, Tehran, Iran

Authors and Affiliations

  1. Department of Systematic Botany, University of Lund, Ö. Vallgatan 20, S-223 61, Lund, Sweden

    M. Assadi & H. Runemark

Authors
  1. M. Assadi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. Runemark
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Assadi, M., Runemark, H. Hybridisation, genomic constitution and generic delimitation in Elymus s. l. (Poaceae: Triticeae). Pl Syst Evol 194, 189–205 (1995). https://doi.org/10.1007/BF00982855

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00982855

Key words

Search

Navigation