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Table 2 Sequence conservation within subfamilies of the PR-10 family among eight Betula species.

From: Characterization of PR-10 genes from eight Betula species and detection of Bet v 1 isoforms in birch pollen

Subfamily

01

02

03

04

05

06

07

Sequences with an intact ORF

       

n =

33

19

39

6

14

0

1

Ka/Ks ratio

0.18

0.27

0.10

0.36

0.09

n. d.

n. d.

Range substitutions

0 – 16

0 – 9

0 – 8

0 – 6

0 – 4

n. d.

n. d.

Average # substitutions

7.0

3.1

2.8

3.3

0.9

n. d.

n. d.

Pseudogene sequences

       

n =

9

5

3

0

0

4

1

Ka/Ks ratio

0.38

0.30

0.20

n. d.

n. d.

0.57

n. d.

  1. n = number of unique sequences. Ka/Ks ratio = ratio between non-synonymous and synonymous mutations. Range substitutions = minimum and maximum number of amino acid substitutions in pair wise comparisons between sequences of the same subfamilies. n. d. = not determined.