1. A cooperation-based method of managing DNA sequence data, the method comprising: receiving annotation data inputted by a user for an anchor corresponding to at least one base of a DNA sequence; storing the received annotation data in an annotation data table which comprises one or more columns for annotation data; and displaying annotation contents contained in the annotation data for the anchor corresponding to the at least one base of the DNA sequence, wherein the anchor corresponding to the at least one base of the DNA sequence is displayed on a DNA sequence map, wherein the received annotation data inputted by the user for the anchor corresponding to the at least one base of the DNA sequence comprises at least one of an experimental results memo, a reply to an existing annotation, or a correction/opinion regarding an existing annotation, wherein the columns for the annotation data comprise a contents column which stores a character string representing the content of an annotation and at least one of an annotation type column which stores one of pre-designated annotation types, an annotation evaluation value column which stores an evaluation value calculated based on evaluations by users other than an annotation author, or a keyword column which stores information about a keyword extracted from the character string by comparing the character string with a keyword dictionary, and wherein the displaying of the annotation contents contained in the annotation data for the anchor comprises, when two or more annotations exist for the anchor, arranging and displaying the annotations according to scores calculated based on a similarity between a job of the user and that of an annotation author contained in the annotation data, the similarity between interests of the user and those of the annotation author contained in the annotation data, and an evaluation value of the annotation data.