Table 2

Summary of evolutionary models (chosen by Modeltest) and character states for all individual and combined data sets
1. 2. 3. 4. 5. 6.
No. Taxa included 33 20 55 13 17 3
Model TrN+I+G GTR+I+G GTR+I+G GTR+I+G GTR+I+G TrN+I+G
-lnL 10368.3486 6458.2769 7311.2354 5725.9985 5393.957 3020.6091
I 0.4608 0.5560 0.6009 0.5228 0.5774 0.8131
G 0.6376 0.7144 0.6856 0.5791 0.6728 -
Base frequencies
A 0.2545 0.2598 0.2338 0.2436 0.2595 equal rates
C 0.2280 0.2067 0.2439 0.2354 0.2077
G 0.2665 0.2657 0.2871 0.2808 0.2651
T 0.2510 0.2678 0.2351 0.2403 0.2677
G-C 0.4945 0.4724 0.5310 0.5162 0.4728
Rate matrix
[A<->C] 1.0000 1.0169 1.4341 1.7371 1.2473 1.0000
[A<->G] 1.8721 1.9209 2.6641 2.7392 1.8624 2.1626
[A<->T] 1.0000 1.2931 1.2357 1.3361 1.5619 1.0000
[C<->G] 1.0000 0.7339 1.6993 1.8149 0.6646 1.0000
[C<->T] 4.5252 5.9738 5.2526 5.9522 7.1560 5.2068
[G<->T] 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000
Character status
aligned nt 1720 1720 1645 1720 1720 1720
constant nt 1136 1320 1258 1351 1393 1607
MP-informative 479 256 330 269 177 0
MP-uninformative 105 144 57 100 150 113

Data sets used: 1. Zygnematophyceae and 12 Spirogyra sequences (same as in combined SSU alignment used in Figure  1). 2. Zygnematophyceae. 3. All Spirogyra sequences (same as Spirogyra alignment used in Figure  2). 4. 12 Spirogyra sequences (same Spirogyra sequences as data set 1.). 5. Zygnematophyceae without Spirotaenia. 6. Spirotaenia.

Chen et al.

Chen et al. BMC Evolutionary Biology 2012 12:77   doi:10.1186/1471-2148-12-77

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