Table 4

Comparison of the Mesostigma expressed genes with the genomes and ESTs from various organisms. Average identity (AI) of pair wise comparisons of Mesostigma expressed genes with the indicated organismal data set.

Data set (No. of contigs)

Chlamydomonas

Cyanidioschyzon

Porphyra

Thalassiosira

Physcomitrella

Arabidopsis

Oryza

Genome

EST

Genome

EST

Genome

EST

Genome

Genome


All (969)

0.573

0.563

0.522

0.528

0.528

0.590

0.577

0.565

Constrained (314)

0.648

0.653 (n = 244)1)

0.557

0.585 (n = 188)1)

0.569

0.675 (n = 301)1)

0.679

0.671

Evolutionary distance D2)

0.473

0.463

0.658

0.597

0.631

0.425

0.418

0.432


The total data set contains all Mesostigma expressed genes with significant similarity to proteins from other organisms with known or unknown function (see Table 2). The constrained data set contains only Mesostigma expressed genes with significant similarity to proteins in all completely sequenced eukaryotic autotroph organisms.

1) Number of ESTs showing similarity to Mesostigma expressed genes from the constrained data set in a tBLASTX analysis. 2) Evolutionary distances were calculated using the constrained data set and the approximation given by Kimura [28]: D = -ln (1 - p - 0.2 p2), where p is the fraction of amino acid that differs between the two species.

Simon et al. BMC Plant Biology 2006 6:2   doi:10.1186/1471-2229-6-2

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