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Phylogenetic position of the diatom genus Geissleria Lange-Bertalot & Metzeltin and description of two new species from Siberian mountain lakes

Kulikovskiy, Maxim; Gusev, Evgeniy; Andreeva, Svetlana and Annenkova, Nataliia LU (2014) In Phytotaxa 177(5). p.249-260
Abstract
Two new Geissleria species from Siberian mountain lakes Baikal and Frolikha are described based on molecular and morphological data. The two new species are Geissleria baicalosimilis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. and G. frolikhiensis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. According to partial 18S rDNA and rbcL gene fragment analyses, Geissleria does not belong to the large catch-all genus Navicula as it was previously thought. Morphological features such as slit like areolae without hymenes, presence of one isolated pore near the central nodule and presence of props in areolae and an annulus structure support this conclusion. Plastid morphology of Geissleria species is typical for the Cymbellales,... (More)
Two new Geissleria species from Siberian mountain lakes Baikal and Frolikha are described based on molecular and morphological data. The two new species are Geissleria baicalosimilis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. and G. frolikhiensis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. According to partial 18S rDNA and rbcL gene fragment analyses, Geissleria does not belong to the large catch-all genus Navicula as it was previously thought. Morphological features such as slit like areolae without hymenes, presence of one isolated pore near the central nodule and presence of props in areolae and an annulus structure support this conclusion. Plastid morphology of Geissleria species is typical for the Cymbellales, with one large chloroplast divided into two plates lying one against each valve, connected by a broad column. All of our data show that Geissleria is most closely to the genus Placoneis, with which they share naviculoid symmetry. Given these results, Geissleria should be included in the order Cymbellales. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cymbellales diatoms, Geissleria, morphology, phylogenetic position, new, species, lakes, Baikal, Frolikha
in
Phytotaxa
volume
177
issue
5
pages
249 - 260
publisher
Magnolia Press
external identifiers
  • wos:000341354000001
ISSN
1179-3163
language
English
LU publication?
yes
id
c123376e-f3a2-4746-8a8e-c889dfd7a3c6 (old id 4713915)
alternative location
http://www.mapress.com/phytotaxa/content/2014/f/p00177p260f.pdf
date added to LUP
2014-11-06 13:50:06
date last changed
2016-04-15 14:26:02
@article{c123376e-f3a2-4746-8a8e-c889dfd7a3c6,
  abstract     = {Two new Geissleria species from Siberian mountain lakes Baikal and Frolikha are described based on molecular and morphological data. The two new species are Geissleria baicalosimilis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. and G. frolikhiensis Kulikovskiy, Gusev, Andreeva & Annenkova sp. nov. According to partial 18S rDNA and rbcL gene fragment analyses, Geissleria does not belong to the large catch-all genus Navicula as it was previously thought. Morphological features such as slit like areolae without hymenes, presence of one isolated pore near the central nodule and presence of props in areolae and an annulus structure support this conclusion. Plastid morphology of Geissleria species is typical for the Cymbellales, with one large chloroplast divided into two plates lying one against each valve, connected by a broad column. All of our data show that Geissleria is most closely to the genus Placoneis, with which they share naviculoid symmetry. Given these results, Geissleria should be included in the order Cymbellales.},
  author       = {Kulikovskiy, Maxim and Gusev, Evgeniy and Andreeva, Svetlana and Annenkova, Nataliia},
  issn         = {1179-3163},
  keyword      = {Cymbellales diatoms,Geissleria,morphology,phylogenetic position,new,species,lakes,Baikal,Frolikha},
  language     = {eng},
  number       = {5},
  pages        = {249--260},
  publisher    = {Magnolia Press},
  series       = {Phytotaxa},
  title        = {Phylogenetic position of the diatom genus Geissleria Lange-Bertalot & Metzeltin and description of two new species from Siberian mountain lakes},
  volume       = {177},
  year         = {2014},
}