TITLE

Evolutionary genomics: Algae's complex origins

AUTHOR(S)
Gould, Sven B.
PUB. DATE
December 2012
SOURCE
Nature;12/6/2012, Vol. 492 Issue 7427, p46
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article presents a report on the nuclear-genome sequences of unicellular algae Guillardia theta and Bigelowiella natans which are derivatives of symbiotic relationship between multiple cells. The genome sequences are the final pieces in a long-standing puzzle enriches the understanding of how this arrangement evolved and how the cells are managing its intricate biochemistry. It also implies that the presence of nucleomorph-plastid complex prevents gene transfer in a cell.
ACCESSION #
83859491

 

Related Articles

  • Re-evaluating the Green versus Red Signal in Eukaryotes with Secondary Plastid of Red Algal Origin. Burki, Fabien; Flegontov, Pavel; Oborník, Miroslav; Cihlář, Jaromír; Pain, Arnab; Lukeš, Julius; Keeling, Patrick J. // Genome Biology & Evolution;Sep2012, Vol. 4 Issue 9, p626 

    The transition from endosymbiont to organelle in eukaryotic cells involves the transfer of significant numbers of genes to the host genomes, a process known as endosymbiotic gene transfer (EGT). In the case of plastid organelles, EGTs have been shown to leave a footprint in the nuclear genome...

  • Analysis of the complete plastid genome of the unicellular red alga Porphyridium purpureum. Tajima, Naoyuki; Sato, Shusei; Maruyama, Fumito; Kurokawa, Ken; Ohta, Hiroyuki; Tabata, Satoshi; Sekine, Kohsuke; Moriyama, Takashi; Sato, Naoki // Journal of Plant Research;May2014, Vol. 127 Issue 3, p389 

    We determined the complete nucleotide sequence of the plastid genome of the unicellular marine red alga Porphyridium purpureum strain NIES 2140, belonging to the unsequenced class Porphyridiophyceae. The genome is a circular DNA composed of 217,694 bp with the GC content of 30.3 %. Twenty-nine...

  • Plant-Like Proteins in Protozoa, Metazoa and Fungi Imply Universal Plastid Endosymbiosis. Shu Yuan; Jian-Hua Guo; Jun-Bo Du; Hong-Hui Lin // Biology Forum / Rivista di Biologia;2010, Vol. 103 Issue 1, p71 

    In recent years, plant-like proteins in protozoa, metazoa and fungi have been identified. Analysis of them suggests that for millions of years universal plastid endosymbiosis and gene transfer occurred in ancestors of metazoa/fungi, and some transferred fragments have been reserved till now even...

  • Complete Genome Structure of the Unicellular Cyanobacterium Synechocystis sp. PCC6803. Kaneko, Takakazu; Tabata, Satoshi // Plant & Cell Physiology;Nov1997, Vol. 38 Issue 11, p1171 

    Cyanobacteria are photoautotrophic organisms capable of oxygen-producing photosynthesis similar to that in eukaryotic algae and plants, and because of this, they have been used as model organisms for the study of the mechanism and regulation of oxygen-producing photosynthesis. To understand the...

  • The Complete Plastid Genome Sequence of the Secondarily Nonphotosynthetic Alga Cryptomonas paramecium: Reduction, Compaction, and Accelerated Evolutionary Rate. Donaher, Natalie; Tanifuji, Goro; Onodera, Naoko T.; Malfatti, Stephanie A.; Chain, Patrick S. G.; Hara, Yoshiaki; Archibald, John M. // Genome Biology & Evolution;Jan2009, Vol. 1, p439 

    The cryptomonads are a group of unicellular algae that acquired photosynthesis through the engulfment of a red algal cell, a process called secondary endosymbiosis. Here, we present the complete plastid genome sequence of the secondarily nonphotosynthetic species Cryptomonas paramecium...

  • Nucleomorph and plastid genome sequences of the chlorarachniophyte Lotharella oceanica: convergent reductive evolution and frequent recombination in nucleomorph-bearing algae. Tanifuji, Goro; Onodera, Naoko T.; Brown, Matthew W.; Curtis, Bruce A.; Roger, Andrew J.; Gane Ka-Shu Wong; Melkonian, Michael; Archibald, John M. // BMC Genomics;2014, Vol. 15 Issue 1, p1 

    Background Nucleomorphs are residual nuclei derived from eukaryotic endosymbionts in chlorarachniophyte and cryptophyte algae. The endosymbionts that gave rise to nucleomorphs and plastids in these two algal groups were green and red algae, respectively. Despite their independent origin, the...

  • Ecological fitness, genomic islands and bacterial pathogenicity. Hacker, Jörg; Carniel, Elisabeth // EMBO Reports;May2001, Vol. 2 Issue 5, p376 

    The compositions of bacterial genomes can be changed rapidly and dramatically through a variety of processes including horizontal gene transfer. This form of change is key to bacterial evolution, as it leads to 'evolution in quantum leaps'. Horizontal gene transfer entails the incorporation of...

  • PCR analysis of pulsed-field gel electrophoresis-purified plastid DNA, a sensitive tool to judge the hetero-/homoplastomic status of plastid transformants. Swiatek, Magdalena; Greiner, Stephan; Kemp, Sabine; Drescher, Anja; Koop, Hans-Ulrich; Herrmann, Reinhold G.; Maier, Rainer M. // Current Genetics;Jan2003, Vol. 43 Issue 1, p45 

    The genetic transformation of plastids of higher plants has developed into a powerful approach for both basic research and biotechnology. Due to the high copy number of the plastid genome per plastid and per cell, repeated cycles of shoot regeneration under conditions selective for the modified...

  • Re-evaluating the Green versus Red Signal in Eukaryotes with Secondary Plastid of Red Algal Origin. Burki, Fabien; Flegontov, Pavel; Oborník, Miroslav; Cihlář, Jaromír; Pain, Arnab; Lukeš, Julius; Keeling, Patrick J. // Genome Biology & Evolution;Jun2012, Vol. 4 Issue 6, p626 

    The transition from endosymbiont to organelle in eukaryotic cells involves the transfer of significant numbers of genes to the host genomes, a process known as endosymbiotic gene transfer (EGT). In the case of plastid organelles, EGTs have been shown to leave a footprint in the nuclear genome...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics