小编给大家分享一下iTOL如何对进化树添加外部标签，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
iTOL对进化树添加外部标签
在画进化树，需要对标签添加一些信息时，可以使用iTOL对其添加外部标签。
准备好要添加信息的注释文件，如下：
DATASET_TEXT #In text datasets, each ID is associated to text label, which can be displayed directly on the node branch, or outside the tree #lines starting with a hash are comments and ignored during parsing #=================================================================# # MANDATORY SETTINGS # #=================================================================# #select the separator which is used to delimit the data below (TAB,SPACE or COMMA).This separator must be used throughout this file (except in the SEPARATOR line, which uses space). #SEPARATOR TAB #SEPARATOR SPACE SEPARATOR COMMA #label is used in the legend table (can be changed later) DATASET_LABEL,example text dataset 2 #dataset color (can be changed later) COLOR,#ff00ff #=================================================================# # OPTIONAL SETTINGS # #=================================================================# #=================================================================# # all other optional settings can be set or changed later # # in the web interface (under 'Datasets' tab) # #=================================================================# #left margin, used to increase/decrease the spacing to the next dataset. Can be negative, causing datasets to overlap. Used only for text labels which are displayed on the outside MARGIN,0 #applies to external text labels only; if set, text labels associated to internal nodes will be displayed even if these nodes are not collapsed. It could cause overlapping in the dataset display. SHOW_INTERNAL,0 #Rotate all labels by the specified angle LABEL_ROTATION,0 #applies to external text labels only; If set to 1, labels will be displayed in arcs aligned to the tree (in circular mode) or vertically (in normal mode). All rotation parameters (global or individual) will be ignored. ALIGN_TO_TREE,0 #font size factor; For external text labels, default font size will be slightly less than the available space between leaves, but you can set a multiplication factor here to increase/decrease it (values from 0 to 1 will decrease it, values above 1 will increase it) SIZE_FACTOR,1 #Internal tree nodes can be specified using IDs directly, or using the 'last common ancestor' method described in iTOL help pages #=================================================================# # Actual data follows after the "DATA" keyword # #=================================================================# #the following fields are possible for each node: #ID,label,position,color,style,size_factor,rotation #position defines the position of the pie chart on the tree: # -1 = external label # a number between 0 and 1 = internal label positioned at the specified value along the node branch (for example, position 0 is exactly at the start of node branch, position 0.5 is in the middle, and position 1 is at the end) #style can be 'normal',''bold','italic' or 'bold-italic' #size factor will be multiplied with the standard font size DATA #Examples 9606,Homo sapiens,-1,#ff0000,bold,0.2,0 4932,Eukaryota,-1,#000000,italic,2,90 160,Bacteria,-1,#0000ff,bold,2,90 2234,Archaea,-1,#0000ff,normal,2,-45 727,Something is here with a long label,-1,#ff0000,bold-italic,0.5,0
DATA之前的部分都是格式声明，照抄即可。之后就是具体标签添加的信息，以","键分隔，第一列为原始标签；第二列是添加的外部标签；第三列是-1，代表外部标签；之后几列分别是颜色、字体、大小以及方向设置。准备好数据后就可以加到进化树中了。
以上是“iTOL如何对进化树添加外部标签”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
