补充:
A =腺嘌呤
C =胞嘧啶
G =鸟嘌呤
T =胸腺嘧啶
U =尿嘧啶
R = GA(嘌呤)
Y = TC(嘧啶)
K = GT(酮)
M = AC(氨基)
S = GC
W = AT
B = GTC
D = GAT
H = ACT
V = GCA
N = AGCT(任何)
推荐:FASTX-Toolkit:一款用于处理Short-Reads FASTA/FASTQ文件的程序,里面包含了丰富的Fasta/Fastq文件格式转换、统计等命令。
http://hannonlab.cshl.edu/fastx_toolkit/