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TREE-PUZZLE
Input file name: qp-pure-bin.bin
Type of analysis: tree reconstruction
Parameter estimation: approximate (faster)
Parameter estimation uses: neighbor-joining tree (for substitution process and rate variation)
Standard errors (S.E.) are obtained by the curvature method.
The upper and lower bounds of an approximate 95% confidence interval
for parameter or branch length x are x-1.96*S.E. and x+1.96*S.E.
SEQUENCE ALIGNMENT
Input data: 5 sequences with 895 binary state sites
Number of constant sites: 825 (= 92.2% of all sites)
Number of site patterns: 16
Number of constant site patterns: 2 (= 12.5% of all site patterns)
SUBSTITUTION PROCESS
Model of substitution: Two-state model (Felsenstein 1981)
Binary state frequencies (estimated from data set):
pi(0) = 41.8%
pi(1) = 58.2%
AMBIGUOUS CHARACTERS IN THE SEQUENCE (SEQUENCES IN INPUT ORDER)
gaps wildcards sum % sequence
Gibbon 0 0 0 0.00%
Human 0 0 0 0.00%
Chimpanzee 0 0 0 0.00%
Gorilla 0 0 0 0.00%
Orangutan 0 0 0 0.00%
-------------------------------------------------------
Sum 0 0 0 0.00%
The table above shows the amount of gaps ('-') and other 'wildcard'
characters ('X', '?', etc.) and their percentage of the 895 columns
in the alignment.
Sequences with more than 50% ambiguous characters are marked with a '!' and
should be checked, whether they have sufficient overlap to other sequences.
Sequences with 100% ambiguous characters do not hold any phylogenetic
information and had to be discarded from the analysis.
SEQUENCE COMPOSITION (SEQUENCES IN INPUT ORDER)
5% chi-square test p-value
Gibbon passed 41.61%
Human passed 73.47%
Chimpanzee passed 68.43%
Gorilla passed 94.60%
Orangutan passed 100.00%
The chi-square tests compares the binary state composition of each sequence
to the frequency distribution assumed in the maximum likelihood model.
IDENTICAL SEQUENCES
The sequences in each of the following groups are all identical. To speed
up computation please remove all but one of each group from the data set.
All sequences are unique.
MAXIMUM LIKELIHOOD DISTANCES
Maximum likelihood distances are computed using the selected model of
substitution and rate heterogeneity.
5
Gibbon 0.00000 0.05300 0.05176 0.05295 0.06171
Human 0.05300 0.00000 0.00563 0.00903 0.04081
Chimpanzee 0.05176 0.00563 0.00000 0.01018 0.03960
Gorilla 0.05295 0.00903 0.01018 0.00000 0.03835
Orangutan 0.06171 0.04081 0.03960 0.03835 0.00000
Average distance (over all possible pairs of sequences): 0.03630
minimum : 0.00563, maximum : 0.06171
variance : 0.00043, std.dev. : 0.02066
RATE HETEROGENEITY
Model of rate heterogeneity: uniform rate
QUARTET STATISTICS (SEQUENCES IN INPUT ORDER)
name | resolved | partly resolved | unresolved | sum
--------------------------------------------------------------------------
Gibbon 4 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 4
Human 4 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 4
Chimpanzee 4 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 4
Gorilla 4 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 4
Orangutan 4 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 4
--------------------------------------------------------------------------
#quartets : 5 [100.00%] 0 [ 0.00%] 0 [ 0.00%] 5
The table shows the occurrences of fully resolved, partially, and
completely unresolved quartets for each sequence and their percentage
relative to the number of times the sequence occurs in the list of
quartets (i.e. 4 quartets out of 5 in total).
In fully resolved quartet one single topology is supported, while for
partially resolved quartets two and for completely unresolved quartets
none of the topologies (AB||CD, AC||BD, AD||BC) are favoured.
Note: Because 4 sequences are involved in one quartet numbers add up
to a four-fold of the existing quartets.
Hint: The overall numbers in the last row give information about the
phylogenetic content of the dataset. The higher the percentage of partially
and unresolved quartets, the lower the content of phylogenetic information.
This can be visualized in more detail by likelihood mapping analysis.
TREE SEARCH
Quartet puzzling is used to choose from the possible tree topologies
and to simultaneously infer support values for internal branches.
Number of puzzling steps: 1000
Analysed quartets: 5
Fully resolved quartets: 5 (= 100.0%)
Partly resolved quartets: 0 (= 0.0%)
Unresolved quartets: 0 (= 0.0%)
Quartet trees are based on exact maximum likelihood values
using the selected model of substitution and rate heterogeneity.
QUARTET PUZZLING TREE
Support for the internal branches of the unrooted quartet puzzling
tree topology is shown in percent.
This quartet puzzling tree is completely resolved.
:---Human
:100:
:100: :---Chimpanzee
: :
: :-------Gorilla
:
:-----------Orangutan
:
:-----------Gibbon
Quartet puzzling tree (in CLUSTAL W notation):
(Gibbon,((Human,Chimpanzee)100,Gorilla)100,Orangutan);
BIPARTITIONS
The following bipartitions occured at least once in all intermediate
trees that have been generated in the 1000 puzzling steps.
Bipartitions included in the quartet puzzling tree:
(bipartition with sequences in input order : number of times seen)
*..** : 1000
*...* : 1000
Congruent bipartitions occurred in 50% or less, not included in
the consensus tree:
(bipartition with sequences in input order : number of times seen)
None (all bipartitions are included)
MAXIMUM LIKELIHOOD BRANCH LENGTHS ON CONSENSUS TREE (NO CLOCK)
Branch lengths are computed using the selected model of
substitution and rate heterogeneity.
:-2 Human
:--6
: :-3 Chimpanzee
:---7
: :-4 Gorilla
:
:---5 Orangutan
:
:----1 Gibbon
branch length S.E. branch length S.E.
Gibbon 1 0.03803 0.00691 6 0.00339 0.00199
Human 2 0.00240 0.00170 7 0.01106 0.00384
Chimpanzee 3 0.00323 0.00196
Gorilla 4 0.00353 0.00206 5 iterations until convergence
Orangutan 5 0.02357 0.00543 log L: -968.78
Consensus tree with maximum likelihood branch lengths
(in CLUSTAL W notation):
(Gibbon:0.03803,((Human:0.00240,Chimpanzee:0.00323)100:0.00339,Gorilla:0.00353)
100:0.01106,Orangutan:0.02357);
TIME STAMP
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