Cladogram和Phylogram这两种系统发生树,有什么相同和不同

Question

Cladogram 和Phylogram这两种系统发生树,有什么相同和不同

Answer 1

　　引自维基百科：
　　A dendrogram/phylogenetic tree （系统树图/树状图） is a broad term for the diagrammatic representation of a
phylogenetic tree.
　　A cladogram （分支图） is a phylogenetic tree formed using cladistic methods.This type of
　　tree only represents a branching pattern; i.e.,its branch spans do not
represent time or relative amount of character change.
　　A phylogram （谱系图/系统发生）图 is a phylogenetic tree that has branch spans proportional to the
amount of character change.
　　A chronogram/ultrametric tree （时序图） is a phylogenetic tree that explicitly represents evolutionary time
through its branch spans.
简而言之,
cladogram仅有拓扑结构
phylogram各分枝长度表示碱基替换数
chronogram各分枝长度表示时间
dendrogram泛指树状图,包含以上三者.