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Evolutionary Dynamics of Cryptophyte Plastid Genomes
  • References (82)
  • Cited By (7)
2002
Karl M. Kadish53
Estimated H-index: 53
,
Kevin M. Smith59
Estimated H-index: 59
,
Roger Guilard38
Estimated H-index: 38
Volume 11: Bioinorganic and Bioorganic Chemistry Volume 12: The Iron and Cobalt Pigments: Biosynthesis, Structure and Degradation Volume 13: Chlorophylls and Bilins: Biosynthesis, Synthesis and Degradation Volume 14: Medical Aspects of Porphyrins Volume 15: Phthalocyanines: Synthesis Volume 16: Phthalocyanines: Spectroscopic and Electrochemical Characterization Volume 17: Phthalocyanines Properties and Materials Volume 18: Multiporphyrins, Multiphthalocyanines and Arrays Volume 19: Applications ...
2,431 Citations Download PDF
2015 in PLOS ONEIF: 2.77
Jong Im Kim5
Estimated H-index: 5
(Chungnam National University),
Hwan Su Yoon19
Estimated H-index: 19
(Sungkyunkwan University)
+ 3 AuthorsWoongghi Shin13
Estimated H-index: 13
(Chungnam National University)
Teleaulax amphioxeia is a photosynthetic unicellular cryptophyte alga that is distributed throughout marine habitats worldwide. This alga is an important plastid donor to the dinoflagellate Dinophysis caudata through the ciliate Mesodinium rubrum in the marine food web. To better understand the genomic characteristics of T. amphioxeia, we have sequenced and analyzed its plastid genome. The plastid genome sequence of T. amphioxeia is similar to that of Rhodomonas salina, and they share significan...
13 Citations Source Cite
2015 in PeerJIF: 2.12
Marie-Mathilde Perrineau4
Estimated H-index: 4
(Rutgers University),
Dana C. Price19
Estimated H-index: 19
(Rutgers University)
+ 1 AuthorsDebashish Bhattacharya63
Estimated H-index: 63
(Rutgers University)
Group II introns are closely linked to eukaryote evolution because nuclear spliceosomal introns and the small RNAs associated with the spliceosome are thought to trace their ancient origins to these mobile elements. Therefore, elucidating how group II introns move, and how they lose mobility can potentially shed light on fundamental aspects of eukaryote biology. To this end, we studied five strains of the unicellular red alga Porphyridium purpureum that surprisingly contain 42 group II introns i...
8 Citations Download PDF Cite
2015 in Current BiologyIF: 9.25
Sven B. Gould23
Estimated H-index: 23
(University of Düsseldorf),
Uwe G. Maier44
Estimated H-index: 44
(Phillips University),
William Martin79
Estimated H-index: 79
(University of Düsseldorf)
The number and nature of endosymbioses involving red algal endosymbionts are debated. Gene phylogenies have become the most popular tool to untangle this issue, but they deliver conflicting results. As gene and lineage sampling has increased, so have both the number of conflicting trees and the number of suggestions in the literature for multiple tertiary, and even quaternary, symbioses that might reconcile the tree conflicts. Independent lines of evidence that can address the issue are needed. ...
45 Citations Download PDF Cite
2000 in NatureIF: 41.58
Claude Lemieux44
Estimated H-index: 44
(Laval University),
Christian Otis34
Estimated H-index: 34
(Laval University),
Monique Turmel41
Estimated H-index: 41
Ancestral chloroplast genome in Mesostigma viride reveals an early branch of green plant evolution
210 Citations Source Cite
Hwan Su Yoon21
Estimated H-index: 21
(University of Iowa),
Jeremiah D. Hackett25
Estimated H-index: 25
(University of Iowa)
+ 1 AuthorsDebashish Bhattacharya63
Estimated H-index: 63
(University of Iowa)
Abstract Algae include a diverse array of photosynthetic eukaryotes excluding land plants. Explaining the origin of algal plastids continues to be a major challenge in evolutionary biology. Current knowledge suggests that plastid primary endosymbiosis, in which a single-celled protist engulfs and “enslaves” a cyanobacterium, likely occurred once and resulted in the primordial alga. This eukaryote then gave rise through vertical evolution to the red, green, and glaucophyte algae. However, some mo...
283 Citations Download PDF Cite
Dallmann Hg6
Estimated H-index: 6
(Anschutz Medical Campus),
Charles S. McHenry41
Estimated H-index: 41
(Anschutz Medical Campus)
Abstract A physical characterization of the τ and γ subunits of the Escherichia coli DNA polymerase III holoenzyme and their complexes with the δ, δ ′, χ, and ψ subunits is presented. The native molecular mass of the τ and γ subunits was determined to be 255,000 and 189,000 Da, respectively, by sedimentation equilibrium analytical ultracentrifugation. Both values indicate a tetrameric quaternary structure. The τ and γ complexes were reconstituted and purified using two different methods. Both co...
70 Citations Source Cite
1998 in NatureIF: 41.58
William Martin79
Estimated H-index: 79
(University of Düsseldorf),
Bettina Stoebe6
Estimated H-index: 6
(Braunschweig University of Technology)
+ 3 AuthorsKlaus V. Kowallik17
Estimated H-index: 17
(Braunschweig University of Technology)
Photosynthetic eukaryotes, particularly unicellular forms, possess a fossil record that is either wrought with gaps or difficult to interpret, or both. Attempts to reconstruct their evolution have focused on plastid phylogeny, but were limited by the amount and type of phylogenetic information contained within single genes1, 2, 3, 4, 5. Among the 210 different protein-coding genes contained in the completely sequenced chloroplast genomes from a glaucocystophyte, a rhodophyte, a diatom, a eugleno...
604 Citations Source Cite
2001 in NatureIF: 41.58
Susan E. Douglas32
Estimated H-index: 32
(National Research Council),
Stefan Zauner22
Estimated H-index: 22
+ 7 AuthorsUwe G. Maier44
Estimated H-index: 44
Chromophyte algae differ fundamentally from plants in possessing chloroplasts that contain chlorophyll c and that have a more complex bounding-membrane topology 1 . Although chromophytes are known to be evolutionary chimaeras of a red alga and a non-photosynthetic host 1 , which gave rise to their exceptional membrane complexity, their cell biology is poorly understood. Cryptomonads are the only chromophytes that still retain the enslaved red algal nucleus as a minute nucleomorph 2-4 . Here we r...
368 Citations Source Cite
1993 in Journal of BacteriologyIF: 3.22
Alexandra Blinkova8
Estimated H-index: 8
(University of Texas at Austin),
C Hervas1
Estimated H-index: 1
(University of Texas at Austin)
+ 3 AuthorsJames R. Walker19
Estimated H-index: 19
(University of Texas at Austin)
Abstract The replicative polymerase of Escherichia coli, DNA polymerase III, consists of a three-subunit core polymerase plus seven accessory subunits. Of these seven, tau and gamma are products of one replication gene, dnaX. The shorter gamma is created from within the tau reading frame by a programmed ribosomal -1 frameshift over codons 428 and 429 followed by a stop codon in the new frame. Two temperature-sensitive mutations are available in dnaX. The 2016(Ts) mutation altered both tau and ga...
58 Citations Download PDF Cite
  • References (82)
  • Cited By (7)
2018
Sishuo Wang (University of British Columbia), Youhua Chen (Chinese Academy of Sciences)
Concerted evolution, where paralogs in the same species show higher sequence similarity to each other than to orthologs in other species, is widely found in many species. However, cases of concerted evolution that last for hundreds of millions of years are very rare. By genome-wide analysis of a broad selection of prokaryotes, we provide strong evidence of recurrent concerted evolution in 26 genes, most of which have lasted more than ~500 million years. We find that most concertedly evolving gen...
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2018 in BMC GenomicsIF: 3.73
Jong Im Kim5
Estimated H-index: 5
(Chungnam National University),
Hwan Su Yoon19
Estimated H-index: 19
(Sungkyunkwan University)
+ 2 AuthorsJohn M. Archibald36
Estimated H-index: 36
(Dalhousie University)
Background Cryptophytes are an ecologically important group of algae comprised of phototrophic, heterotrophic and osmotrophic species. This lineage is of great interest to evolutionary biologists because their plastids are of red algal secondary endosymbiotic origin. Cryptophytes have a clear phylogenetic affinity to heterotrophic eukaryotes and possess four genomes: host-derived nuclear and mitochondrial genomes, and plastid and nucleomorph genomes of endosymbiotic origin.
2 Citations Source Cite
2018 in ProtoplasmaIF: 2.46
Pratishtha Vedalankar (Jawaharlal Nehru University), Baishnab C. Tripathy24
Estimated H-index: 24
(Jawaharlal Nehru University)
The nonhomologous enzymes, the light-independent protochlorophyllide reductase (DPOR) and the light-dependent protochlorophyllide oxidoreductase (LPOR), catalyze the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide) in the penultimate step of biosynthesis of chlorophyll (Chl) required for photosynthetic light absorption and energy conversion. The two enzymes differ with respect to the requirement of light for catalysis and oxygen sensitivity. DPOR and LPOR initially evolved i...
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2018
Jaehee Jung (Hongik University), Gangman Yi (Dongguk University)
An increase in the size of next-generation sequencing (NGS) data owing to the development of the novel computation power has made an automated analysis system increasingly desirable. To automatically predict genes for the unknown sequences, several pipeline steps are required. The first step involves the acquisition of various NGS fragment reads, followed by assembler of the fragment reads of 100 bp to 10 Kbp. Upon accurate assembler of NGS fragment reads of a sufficient size, a de novo assemble...
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2018 in New PhytologistIF: 7.43
Marina Cvetkovska1
Estimated H-index: 1
(University of Western Ontario),
Shane Orgnero (University of Western Ontario)+ 1 AuthorsDavid Roy Smith26
Estimated H-index: 26
(University of Western Ontario)
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View next paperMOLECULAR ORGANIZATION AND DYNAMICS OF PLASTID NUCLEOIDS