FN Archimer Export Format PT J TI Metagenomes of the Picoalga Bathycoccus from the Chile Coastal Upwelling BT AF VAULOT, Daniel LEPERE, Cecile TOULZA, Eve DE LA IGLESIA, Rodrigo POULAIN, Julie GABOYER, Frederic MOREAU, Herve VANDEPOELE, Klaas ULLOA, Osvaldo GAVORY, Frederick PIGANEAU, Gwenael AS 1:1,2;2:1,2;3:3,4;4:5,6;5:7;6:1,2;7:3,4;8:8,9;9:5,6;10:7;11:3,4; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:; C1 Univ Paris 06, UPMC, Roscoff, France. CNRS, Biol Stn, UMR 7144, Roscoff, France. CNRS, Banyuls Sur Mer, France. Univ Paris 06, UPMC, OOB, UMR 7232, Banyuls Sur Mer, France. Univ Concepcion, Dept Oceanog, Concepcion, Chile. Univ Concepcion, Ctr Invest Oceanog Pacifico Sur Oriental, Concepcion, Chile. CEA, Inst Genom, Genoscope, Evry, France. VIB, Dept Plant Syst Biol, Ghent, Belgium. Univ Ghent, Dept Plant Biotechnol & Bioinformat, B-9000 Ghent, Belgium. C2 UNIV PARIS 06, FRANCE CNRS, FRANCE CNRS, FRANCE UNIV PARIS 06, FRANCE UNIV CONCEPCION, CHILE UNIV CONCEPCION, CHILE CEA, FRANCE VIB, BELGIUM UNIV GHENT, BELGIUM SI BREST SE CNRS IF 3.73 TC 46 TU Centre national de la recherche scientifique Université Pierre et Marie Curie UR https://archimer.ifremer.fr/doc/00129/23987/21945.pdf LA English DT Article CR BIOSOPE BO L'Atalante AB Among small photosynthetic eukaryotes that play a key role in oceanic food webs, picoplanktonic Mamiellophyceae such as Bathycoccus, Micromonas, and Ostreococcus are particularly important in coastal regions. By using a combination of cell sorting by flow cytometry, whole genome amplification (WGA), and 454 pyrosequencing, we obtained metagenomic data for two natural picophytoplankton populations from the coastal upwelling waters off central Chile. About 60% of the reads of each sample could be mapped to the genome of Bathycoccus strain from the Mediterranean Sea (RCC1105), representing a total of 9 Mbp (sample T142) and 13 Mbp (sample T149) of non-redundant Bathycoccus genome sequences. WGA did not amplify all regions uniformly, resulting in unequal coverage along a given chromosome and between chromosomes. The identity at the DNA level between the metagenomes and the cultured genome was very high (96.3% identical bases for the three larger chromosomes over a 360 kbp alignment). At least two to three different genotypes seemed to be present in each natural sample based on read mapping to Bathycoccus RCC1105 genome. PY 2012 PD JUL SO Plos One SN 1932-6203 PU Public Library Science VL 7 IS 6 UT 000305730900092 DI 10.1371/journal.pone.0039648 ID 23987 ER EF