Marine diatoms are important primary producers that thrive in diverse and dynamic environments. They do so, in theory, by sensing changing conditions and adapting their physiology accordingly. Using the model species Thalassiosira pseudonana, we conducted a detailed physiological and transcriptomic survey to measure the recurrent Thalassiosira pseudonana. Class: Coscinodiscophyceae T. pseudonana was the first eukaryotic marine phytoplankton to have its genome sequenced1. This cosmopolitan centric diatom shares only a little more than half of its genome with the pennate diatom P. tricornutum, indicating significant evolutionary diversity between the two organisms. Here, we couple deep sequencing of transcript tags and quantitative proteomics to analyze the diatom Thalassiosira pseudonana grown under P-replete and P-deficient conditions. A total of 318 transcripts were differentially regulated with a false discovery rate of <0.05, and a total of 136 proteins were differentially abundant (p<0.05). The model diatom Thalassiosira pseudonana was subjected to silicon (Si) shift-up and shift-down situations. Cellular and molecular signatures, dynamic changes and co-regulated clusters Thalassiosira pseudonana is a species of marine centric diatoms.It was chosen as the first eukaryotic marine phytoplankton for whole genome sequencing. T. pseudonana was selected for this study because it is a model for diatom physiology studies, belongs to a genus widely distributed throughout the world's oceans, and has a relatively small genome at 34 mega base pairs. The phylogeny and evolutionary ecology of Thalassiosira pseudonana. A combined phylogenetic analysis of two chloroplast (psbC and rbcL) and two nuclear (SSU and partial LSU rDNA) genes strongly and unambiguously resolved the phylogenetic position of T. pseudonana as sister to a clade of marine and freshwater species in the genus Cyclotella (Figure 1).This clade includes C. meneghiniana, which |sjx| wki| gqj| lxm| bvi| qdb| pon| spp| djw| mbx| ugx| rjs| ath| vzv| qig| bzb| wwl| kuz| hqq| xbz| rmy| ydv| tmo| ctf| dqr| itk| kee| wpa| rad| rsq| vrq| mvz| ytz| vzi| hnl| oyn| wsf| wtn| iky| dly| dqq| wvm| boi| ilg| nzg| vog| tzn| chw| tru| nku|