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

Dzhambazov, Balik LU ; Mladenov, R ; Teneva, Ivanka LU and Belkinova, D (2006) In Journal of Genetics 85(1). p.39-44
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... (More)
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. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
clonal cultures, variability, taxonomy, Scenedesmus, karyotype
in
Journal of Genetics
volume
85
issue
1
pages
39 - 44
publisher
Indian Academy of Sciences
external identifiers
  • pmid:16809838
  • wos:000238128300006
  • scopus:33745195024
ISSN
0022-1333
language
English
LU publication?
yes
additional info
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)
id
6d9d6a34-5cbe-41ab-af08-96688619166e (old id 406802)
alternative location
http://www.ias.ac.in/jgenet/Vol85No1/39.pdf
date added to LUP
2016-04-01 15:30:11
date last changed
2021-06-23 04:47:31
@article{6d9d6a34-5cbe-41ab-af08-96688619166e,
  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.},
  author       = {Dzhambazov, Balik and Mladenov, R and Teneva, Ivanka and Belkinova, D},
  issn         = {0022-1333},
  language     = {eng},
  number       = {1},
  pages        = {39--44},
  publisher    = {Indian Academy of Sciences},
  series       = {Journal of Genetics},
  title        = {Karyotypic differences and evolutionary tendencies of some species from the subgenus Obliquodesmus Mlad. of genus Scenedesmus Meyen (Chlorophyta, Chlorococcales)},
  url          = {http://www.ias.ac.in/jgenet/Vol85No1/39.pdf},
  volume       = {85},
  year         = {2006},
}