Table 1

General features of cpDNAs from Staurastrum, Zygnema, other streptophytes and Mesostigma

Feature

Mesostigma

Staurastrum

Zygnema

Chaetosphaeridium

Marchantia


Sizea (bp)

IR

6,057

-

-

12,431

10,058

SSC

22,619

-

-

17,639

19,813

LSC

83,627

-

-

88,682

81,095

Genome

118,360

157,089

165,372

131,183

121,024

A+T content (%)

69.9

67.5

68.9

70.4

71.2

Gene contentb

136

121

125

125

120

Introns

Group I

0

1

1

1

1

Group II

Cis-spliced

0

6

11

16

18

Trans-spliced

0

1

1

1

1


a Because Staurastrum and Zygnema cpDNAs lack an IR, only the genome size is given for each of these cpDNAs. SSC, small single-copy region; LSC, large single-copy region.

b Unique ORFs, intron ORFs and pseudogenes were not taken into account. Note that Chaetosphaeridium tufA was considered to be a functional gene.

Turmel et al. BMC Biology 2005 3:22   doi:10.1186/1741-7007-3-22

Open Data