Karyotypic differences and evolutionary tendencies of some species from the subgenus Obliquodesmus Mlad. of genus Scenedesmus Meyen (Chlorophyta, Chlorococcales)

Balik Dzhambazov, R Mladenov, Ivanka Teneva, D Belkinova

Research output: Contribution to journalArticlepeer-review

1 Citation (SciVal)

Abstract

Karyotype structures of Scenedesmus acuminatus (Lagerch.) Chod. and Scenedesmus pectinatus Meyen are compared. The karyotype of S. acuminatus (n = 5) is described for the first time. It reveals four large metacentric and one large submeta centric 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 from S. pectinatus towards S. regularis through S. 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 view S. pectinalus, S. acuminatus and S. regularis are separate biological species.
Original languageEnglish
Pages (from-to)39-44
JournalJournal of Genetics
Volume85
Issue number1
Publication statusPublished - 2006

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Medical Inflammation Research (013212019)

Subject classification (UKÄ)

  • Immunology in the medical area

Keywords

  • clonal cultures
  • variability
  • taxonomy
  • Scenedesmus
  • karyotype

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