Red and green algal monophyly and extensive gene sharing found in a rich repertoire of red algal genes

Chan, Cheong Xin, Yang, Chan Yang, Banerjee, Titas, Yoon, Hwan Su, Martone, Patrick T., Estevez, Jose M. and Bhattacharya, Debashish (2011) Red and green algal monophyly and extensive gene sharing found in a rich repertoire of red algal genes. Current Biology, 21 4: 328-333. doi:10.1016/j.cub.2011.01.037


Author Chan, Cheong Xin
Yang, Chan Yang
Banerjee, Titas
Yoon, Hwan Su
Martone, Patrick T.
Estevez, Jose M.
Bhattacharya, Debashish
Title Red and green algal monophyly and extensive gene sharing found in a rich repertoire of red algal genes
Journal name Current Biology   Check publisher's open access policy
ISSN 0960-9822
1879-0445
Publication date 2011-02-10
Sub-type Article (original research)
DOI 10.1016/j.cub.2011.01.037
Volume 21
Issue 4
Start page 328
End page 333
Total pages 6
Place of publication Cambridge, MA, United States
Publisher Cell Press
Language eng
Formatted abstract
The Plantae comprising red, green (including land plants), and glaucophyte algae are postulated to have a single common ancestor that is the founding lineage of photosynthetic eukaryotes [1, 2]. However, recent multiprotein phylogenies provide little [3, 4] or no [5, 6] support for this hypothesis. This may reflect limited complete genome data available for red algae, currently only the highly reduced genome of Cyanidioschyzon merolae [7], a reticulate gene ancestry [5], or variable gene divergence rates that mislead phylogenetic inference [8]. Here, using novel genome data from the mesophilic Porphyridium cruentum and Calliarthron tuberculosum, we analyze 60,000 novel red algal genes to test the monophyly of red + green (RG) algae and their extent of gene sharing with other lineages. Using a geneby-gene approach, we find an emerging signal of RG monophyly (supported by w50% of the examined protein phylogenies) that increases with the number of distinct phyla and terminal taxa in the analysis. A total of 1,808 phylogenies show evidence of gene sharing between
Plantae and other lineages.We demonstrate that a rich mesophilic red algal gene repertoire is crucial for testing controversial issues in eukaryote evolution and for understanding the complex patterns of gene inheritance in protists.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Institute for Molecular Bioscience - Publications
 
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Created: Fri, 11 Nov 2011, 00:15:05 EST by Susan Allen on behalf of Institute for Molecular Bioscience