| Comments |
"A genome size [of O. tauri] of
12.56 Mb distributed in 20 superscaffolds corresponding to 20
chromosomes was determined by means of sequence assembly (Fig.
1 and Figs. 4 and 5, which are published as supporting information
on the PNAS web site), fully consistent with pulsed-field gel
electrophoresis results indicating a total size of 12.5 to 13 Mb (Fig.
4 and
Supporting Text
, which are published as supporting informa-
tion on the PNAS web site). This genome size is similar to that of
the yeasts
Saccharomyces cerevisiae
and
Schizosaccharomyces
pombe
, despite their larger cell size, but smaller than any other
oxyphototrophic eukaryote known so far, including the red alga
Cyanidioschyzon merolae
(26) (Fig. 2 and Table 1). The G
C
content of
O. tauri
is more akin to that of
C. merolae
than to that
of plants, fungi, or even
T. pseudonana
(Table 1). As shown in Fig.
2 and Table 1, 8,166 protein-coding genes were predicted in the
nuclear genome, making
O. tauri
the most gene dense free-living
eukaryote known to date." |