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Figure 2 | BMC Evolutionary Biology

Figure 2

From: The evolutionary history of Cytochrome P450 genes in four filamentous Ascomycetes

Figure 2

Inference the origin of each clan or family on the branches of a species cladogram. A. A species cladogram of the four fungi. The three internal nodes of the cladogram are named as LCA, Node 1 and Node 2 and leaf nodes are named corresponding to the four fungi. Branches connecting these nodes are named as '0,'1','2','A','F','M','N' as shown in the square embedded in each branch. Colour codes are explained below. B. Inference of the origin of standard families or clans corresponding to each of the 15 possible character state patterns. a, Number '1' in the colour area represents the presence of a certain family or clan in a fungus while '0' refers to its absence. b. The number or letters correspond to the branches shown in panel A, indicating the branch a particular pattern associated clans originated. Question mark "?" represents the origin is ambiguous as inferred by Wagner parsimony (see text for details). c. Based on the assumption that if members of a particular family or clan were present in 2 separate lineages, they were present in the LCA of those lineages (see text), the origin ambiguity were further resolved. "|" represents 'or'. d. Numbers of P450 families with particular character state pattern. e. Number of P450 clans with particular character state pattern. Colour codes: The fifteen character state patterns were classified into seven categories based on 'Assumption' and colour coded, representing the origin of family or clans associated with a particular pattern. Red: originated on branch 0; Brown: either originated on branch 0 or branch 1; Green: originated on branch 2; Blue: originated on branch 0 or branch A; Yellow: originated on branch F; Pink: originated on branch M; Grey: originated on branch N.

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