上面 那个是分析原理,20个基因 对应这个minspan;
cscore :C-score is defined by the ratio of LAST hit to the best BLAST hits to either the query and hit. A C-score cutoff of .99 effectively filters the LAST hit to contain reciprocal best hit (RBH).
minspan: 这个值越大 得到的结果中共线性区域的长度越大,也就是筛选掉哪些小片段的共线性区域;
参考:https://github.com/tanghaibao/jcvi/wiki/MCscan-(Python-version)