Digitale Medien
Oxford, UK
:
Blackwell Science Inc
The @journal of eukaryotic microbiology
52 (2005), S. 0
ISSN:
1550-7408
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Biologie
Notizen:
The genome size of marine phytoplankton is in the order of 106–1011 base pairs. Within the phytoplankton it has often been assumed that dinoflagellates have extraordinarily large genomes that significantly contribute to their nutrient requirements. We test this hypothesis by compiling cell size and genome size data from across many phytoplankton lineages, and apply a simple regression model. Our results suggest that dinoflagellates do not have anomalously large genomes, but instead scale with cell size with the same slope and intercept as many other diverse phytoplankton taxa. Based on the known correlations of genome size and genome content in diverse taxa, we model the approximate expected genome structure in unsequenced lineages of marine phytoplankton. Based on this model, we hypothesize that retrotransposons play a significant role in genome size in marine phytoplankton.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1550-7408.2005.05202003_1_64.x
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