Karyology of the genus Cyclotella Kutz. (Bacillariophyta)

Four freshwater centric diatom taxa, Cyclotella glomerata, C. striata, C. meneghiniana f. unipunctata and C. catenata were investigated karyologically and their important karyological features have been described and discussed. First two taxa contained same chromosome number 2n=12 while C. meneghini...

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Veröffentlicht in:	CYTOLOGIA 1991/12/25, Vol.56(4), pp.491-494
Hauptverfasser:	Giri, B.S, Chowdary, Y.B.K
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences chromosome morphology chromosome number chromosomes Cyclotella cyclotella catenata cyclotella glomerata Cyclotella meneghiniana cyclotella striata Cytogenetics Fundamental and applied biological sciences. Psychology Genetics of eukaryotes. Biological and molecular evolution Pteridophyta, spermatophyta Vegetals and fungi
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Beschreibung
Zusammenfassung:	Four freshwater centric diatom taxa, Cyclotella glomerata, C. striata, C. meneghiniana f. unipunctata and C. catenata were investigated karyologically and their important karyological features have been described and discussed. First two taxa contained same chromosome number 2n=12 while C. meneghiniana f. unipunctata and C. catenata revealed 2n=18 and 24 chromosomes, respectively. Chromosomes did not show structural organization and appear like either small or large dots ranging from 0.25 to 1.8μm in size. Chromosomes organize into either a ring or plate at metaphase in the equatorial region.
ISSN:	0011-4545 1348-7019
DOI:	10.1508/cytologia.56.491