Abstract
Twenty enzyme loci were examined in the diploid species ofTriticum andAegilops for allelic variation by starch gel electrophoresis. SectionSitopsis, including the five species,Ae. speltoides, Ae. lingissima, Ae. sharonensis, Ae. bicornis andAe. searsii form a close subgroup withAe. speltoides slightly removed from the others.T. monococcum s. lat., was found to be closest to the species of theSitopsis group.Ae. comosa, Ae. umbellulata andAe. uniaristata form a second subgroup withAe. caudata most closely related to these species.Ae. squarrosa appears almost equally related to all of the species, showing no special affinity for any one species group. Nineteen out of twenty loci examined were polymorphic with a mean of 6.7 alleles per locus. Species could be, for most loci, characterized by the presence of predominant alleles. A conspicious genetic characteristic ofTriticum-Aegilops is the sharing of these predominant alleles between species. Within species variation is characterized by a diffuse distribution of secondary alleles.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Brewer, G. J., Sing, C. F., Sears, E. R., 1969: Studies of isozyme patterns in nullisomic-tetrasomic combinations of hexaploid wheat. — Proc. Natl. Acad. Sci. U.S.A.64, 1224–1229.
Eig, A., 1929: Monographisch-kritische Übersicht der GattungAegilops. — Feddes Repert. Spec. Nov.1, 1–228.
Feldman, M., Kislev, M., 1977:Aegilops searsii, a new species of sectionSitopsis (Platystachys). — Isr. J. Bot.26, 190–201.
Hart, G. E., Langston, P. J., 1977: Chromosomal location and evolution of isozyme structural genes in hexaploid wheat. — Heredity39, 263–277.
Johnson, B. L., 1972: Seed protein profiles and the origin of the hexaploid wheats. — Proc. Natl. Acad. Sci.69, 1398–1402.
Johnson, B. L., Dhalinal, H. S., 1976: Reproductive isolation ofTriticum boeticum andT. urartu and the origin of tetraploid wheats. — Am. J. Bot.63, 1088–1094.
Kasarda, D. D., Barnardin, J. E., Qualset, C. D., 1976: Relationship of Gliadin protein components to chromosomes in hexaploid wheats (Triticum aesticum L.). — Proc. Natl. Acad. Sci.73, 3646–3650.
Kihara, H., 1947: Definierung und Klassifikation derAegilops-Arten auf Grund der Genomanalyse. — Seiken Ziho3, 11–23.
—, 1954: Considerations on the evolution and distribution ofAegilops species based on the analyzer-method. — Cytologia (Tokyo)19, 336–357.
Kornfield, I., 1974: Evolutionary genetics of endemic cichlid fishes (Pisces: Cichlidae) in Lake Malawi, Africa. — Doctoral Thesis, State University of New York at Stony Brook.
Lakovaara, S., Saura, A., Lankinen, P., Zokki, J., 1976: The use of isozymes in tracing evolution and in classifyingDrosophilidae. — Zool. Scripta5, 173–179.
Marshall, D. R., Allard, R. W., 1970: Maintenance of isozyme polymorphisms in natural populations ofAvena barbata. — Genetics66, 393–399.
Morris, R., Sears, E. R., 1967: The cytogenetics of wheat and it's relatives. — In Wheat and Wheat Improvement (Eds.Quisenbury,0.,Reitz, L. P.). — Amer. Soc. Agron. Monograph13.
Nakai, Y., Tsunewaki, K., 1971: Isozyme variations inAegilops andTriticum. I. Esterase isozymes inAegilops studied using gel isoelectrofocusing method. — Jap. J. Genetics46, 321–336.
Nevo, A., Kim, J., Shaw, C., Thaeler, C., 1974: Genetic variation, selection and adaptation inThomomys talpoides Gophers. — Evolution28, 1–23.
Riley, R., 1965: Cytogenetics and the evolution of wheat. In Essays on Crop Plant Evolution (Ed. Hutchinson, J. R.), 103–118. — Cambridge: Univ. Press.
Schiemann, E., 1948: Weizen, Roggen, Gerste: Systematik, Geschichte und Verwendung. — Jena.
Symeonidis, L., Karataglis, S., Tsekos, I., 1979: Electrophoretic variation in esterases and peroxidases of native Greek diploidAegilops species (Ae. caudata andAe. comosa, Poaceae). — Pl. Syst. Evol.131, 1–15.
Waines, J. G., 1969: Electrophoretic-systematic studies inAegilops. — Doctoral Thesis: University of California, Riverside.
Zohary, D., 1965: Colonizer species in the wheat group. — In The Genetics of Colonizing Species (Eds.Baker, H. G., Stebbins, G. L.), 403–419. — New York: Academic Press.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Brody, T., Mendlinger, S. Species relationships and genetic variation in the diploid wheats (Triticum, Aegilops) as revealed by starch gel electrophoresis. Pl Syst Evol 136, 247–258 (1980). https://doi.org/10.1007/BF01004629
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01004629