Abstract
Karyotype structures ofScenedesmus acuminatus (Lagerch.) Chod. andScenedesmus pectinatus Meyen are compared. The karyotype ofS. acuminatus (n = 5) is described for the first time. It reveals four large metacentric and one large submetacentric chromosomes (4M + 1SM). The established karyotype differences have been helpful in clarifying the taxonomic position of these two species. The cytological analyses of other related clonal cultures suggest an evolutionary transition fromS. pectinatus towardsS. regularis throughS. pectinatus f.regularis, which correlates with the morphological data about their variability. These results are discussed from the cytogenetic, morphological and evolutionary point of view. On the basis of the karyotypic analysis, it was confirmed that from a taxonomic point of viewS. pectinatus, S. acuminatus andS. regularis are separate biological species.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
An S. S., Friedl T. and Hegewald E. 1999 Phylogenetic relationship ofScenedesmus andScenedesmus-like Coccoid green algae as inferred from ITS-2 rDNA sequence comparisons.Plant Biol. 1, 418–428.
Archibald P. and Bold H. 1970Phycological studies. XL The genus Chlorococcum Meneghini. University of Texas Publication No. 7015, University of Texas, Austin, USA.
Chodat R. and Malinescu O. 1893 Sur le polymorphisme duRaphidium braunii et duScenedesmus caudatus Corda.Bull. Herb. Boiss. 1, 640–643.
Dilov C., Bozkova M. and Staev S. 1972 A practical block for cultivation of microalgae in laboratory conditions.Dokl. Akad. S.-H. NaukBolg. 4, 169–175 (in Russian).
Dzhambazov B., Mladenov R., Belkinova D. and Hegewald E. 2001 Karyotype study ofScenedesmus regularis Svir. andScenedesmus pectinatus Meyen in clonal cultures in vitro.Arch. Hydrobiol. Suppl. Algol. Stud. 101, 121–128.
Dzhambazov B, Mladenov R. and Belkinova D. 2002aScenedesmus nygaardii Hub.-Pest, undScenedesmus bernardii G.M. Smith (Chlorophyta, Chlorococcales) — zwei verschiedene arten.Arch. Hydrobiol. Suppl. Algol. Stud. 106, 131–139.
Dzhambazov B., Belkinova D. and Mladenov R. 2002b SindScenedesmus obtusiusculus Chod. undScenedesmus obliquus (Turp.) Kiitz. (Chlorophyta, Chlorococcales) verschiedene Arten?Arch. Hydrobiol. Suppl. Algol. Stud. 106, 141–150.
Dzhambazov B., Belkinova D. and Mladenov R. 2003 Karyotype analysis of two algal speciesScenedesmus incrassatulus Bohl, andScenedesmus antennatus Breb. (Chlorophyta, Chlorococcales).Hereditas 139, 35–40.
Hegewald E. 1979 Vergleichende Beobachtungen an Herbmaterial und Freilandmaterial vonScenedesmus.Arch. Hydrobiol. Suppl. Algol. Stud. 24, 264–286.
Hegewald E. and Silva P. 1988 Annotated catalogue ofScenedesmus and nomenclaturally related genera, including original descriptions and figures.Bibliogr. Phycol. 80, 1–587.
Hegewald E., Stojkovi-Tadici S., Belkinova D. and Mladenov R. 2001Scenedesmus regularis Svir. (Chlorophyta, Chlorophyceae), its taxonomy and salt stress response.Arch. Hydrobiol. Suppl. Algol. Stud. 102, 147–160.
Hindák F. 1990Studies on the chlorococcal algae (Chlorophyta) V. Publication House of the Slovak Akademy of Sciences, Bratislava, Slovak Republic.
Hoek C. van den Mann D. G. and Jahns H. M. 1997Algae: an introduction to phycology. Cambridge University Press, Cambridge.
Komárek J. and Fott B. 1983Chlorophyceae (Grünalgen), Ordnung Chlorococcales. InPhytoplankton des SüΒwassers: Systematik und Biologie (series ed. G. Huber-Pestallozi), 7 Teil, 1 HÄlfte. E. Schweizerbartsche Verlagsbuchhandlung, Stuttgart.
Krienitz L. 1987 Studien zur Morphologie und Taxonomie der UntergattungAcutodesmus (Chlorellales).Arch. Hydrobiol. Suppl. Algol. Stud. 46, 1–37.
Levan A., Fredga K. and Sandberg A. 1964 Nomenclature for centromeric position on chromosomes.Hereditas 52, 201–220.
Lürling M. and Van Donk E. 1997 Morphological changes inScenedesmus induced by infochemicals released in situ from Zooplankton grazers.Limnol. Oceanogr. 42, 783–788.
Mladenov R. 1996 Variability and taxonomy of species of the subgenusObliquodesmus Mlad. of genus Scenedesmus Meyen (Chlorophyta). Ph. D. thesis, University of Plovdiv, Plovdiv, Bulgaria (in Bulgarian).
Mladenov R. and Belkinova D. 1997 VariabilitÄt vonScenedesmus acuminatus (Lagerh.) Chod. undScenedesmus pectinatus Meyen in NÄhrlösung mit verschiedenem NaCl-Gehalt.Arch. Protistenkd. 147, 393–399.
Mladenov R. and Furnadzieva S. 1995 Morphologische VerÄnderlichkeit klonaler kulturen vonScenedesmus falcatus Chod. undScenedesmus acuminatus (Lagerh.) Chod.Arch. Hydrobiol. Suppl. Algol. Stud. 79, 93–107.
Mladenov R. and Furnadzieva S. 1997 Morphologische VerÄnderlichkeit klonaler Kulturen vonScenedesmus pectinatus Meyen.Arch. Hydrobiol. Suppl. Algol. Stud. 84, 113–121.
Mladenov R. and Furnadzieva S. 1999 Ontogenetische VerÄnderungen in klonalen Kulturen vonScenedesmus acuminatus (Lagerch.) Chod. undScenedesmus pectinatus Meyen.Arch. Hydrobiol. Suppl. Algol. Stud. 92, 35–46.
Mladenov R. and Stojanov P. 1999 A new form ofScenedesmus Meyen (Chlorophyta).Union of Bulgarian Scientists: Current trends in the development of fundamental and applied sciences 1, 222–225.
Moorhead P. S., Nowell P. C., Mellman W. J., Battips D. M. and Hungerford D. A. 1960 Chromosome preparations of leucocytes cultured from human peripheral blood.Exp. Cell Res. 20: 613–616.
Ooshima K. 1981 Taxonomic studies onScenedesmus in Japan 1. OnScenedesmus acuminatus (Lag.) Chod. and its varieties andS.javanensis Chod.Jpn. J. Phycol. (Sorui) 29, 85–93.
Stein J. 1973Handbook of phycological methods: culture methods and growth measurements. Cambridge University Press, Cambridge.
Trainor F. R. 1992 Cyclomorphosis inScenedesmus communis Hegew. Ecomorph expression at low temperature.Br. Phycol. J. 27, 75–81.
Trainor F. R. 1993 Cyclomorphosis inScenedesmus subspicatus R. Chod. Cell behaviours during the unicell-colony transformation of a phenotypically plastic organism.Arch. Protistenkd. 143, 55–61.
Uherkovich G. 1966Die Scenedesmus-Arten Ungarns. Akademie Kiadö, Budapest.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Dzhambazov, B., Mladenov, R., Teneva, I. et al. Karyotypic differences and evolutionary tendencies of some species from the subgenusObliquodesmus Mlad. of genusScenedesmus Meyen (Chlorophyta, Chlorococcales). J Genet 85, 39–44 (2006). https://doi.org/10.1007/BF02728968
Issue Date:
DOI: https://doi.org/10.1007/BF02728968