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The complete chloroplast DNA sequences of the charophycean green algae Staurastrum and Zygnema reveal that the chloroplast genome underwent extensive changes during the evolution of the Zygnematales

Overview of attention for article published in BMC Biology, October 2005
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Title
The complete chloroplast DNA sequences of the charophycean green algae Staurastrum and Zygnema reveal that the chloroplast genome underwent extensive changes during the evolution of the Zygnematales
Published in
BMC Biology, October 2005
DOI 10.1186/1741-7007-3-22
Pubmed ID
Authors

Monique Turmel, Christian Otis, Claude Lemieux

Abstract

The Streptophyta comprise all land plants and six monophyletic groups of charophycean green algae. Phylogenetic analyses of four genes from three cellular compartments support the following branching order for these algal lineages: Mesostigmatales, Chlorokybales, Klebsormidiales, Zygnematales, Coleochaetales and Charales, with the last lineage being sister to land plants. Comparative analyses of the Mesostigma viride (Mesostigmatales) and land plant chloroplast genome sequences revealed that this genome experienced many gene losses, intron insertions and gene rearrangements during the evolution of charophyceans. On the other hand, the chloroplast genome of Chaetosphaeridium globosum (Coleochaetales) is highly similar to its land plant counterparts in terms of gene content, intron composition and gene order, indicating that most of the features characteristic of land plant chloroplast DNA (cpDNA) were acquired from charophycean green algae. To gain further insight into when the highly conservative pattern displayed by land plant cpDNAs originated in the Streptophyta, we have determined the cpDNA sequences of the distantly related zygnematalean algae Staurastrum punctulatum and Zygnema circumcarinatum.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 77 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 2 3%
Brazil 2 3%
Pakistan 1 1%
Colombia 1 1%
Canada 1 1%
New Zealand 1 1%
Mexico 1 1%
Czechia 1 1%
United States 1 1%
Other 0 0%
Unknown 66 86%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 17 22%
Researcher 15 19%
Student > Master 10 13%
Professor 9 12%
Student > Doctoral Student 7 9%
Other 12 16%
Unknown 7 9%
Readers by discipline Count As %
Agricultural and Biological Sciences 53 69%
Biochemistry, Genetics and Molecular Biology 11 14%
Environmental Science 2 3%
Linguistics 1 1%
Arts and Humanities 1 1%
Other 4 5%
Unknown 5 6%