使用示例数据。请注意，由于复制和粘贴选项卡占用空格(因此使用sep ='\ s +'，iso'\ t')并且我已将数据的第一行设置为列名(不使用header = None)。可以使用join将一列连接到字符串。

In [20]: from StringIO import StringIO

In [21]: data = """\

....: POSITION REF AR_DM1005 AR_DM1015 AR_DM1050 AR_DM1056 AR_DM1088 AR_KB635 AR_KB652 AR_KB754 AR_KB819 AR_KB820 AR_KB827 AR_KB945 AR_MSH126 AR_MSH51 PP_BdA1134-13 PP_BdA1137-10 PP_DM1038 PP_DM1049 PP_DM1054 PP_DM1065 PP_DM1081 PP_DM1084 PP_JR83 ST_JR138 ST_JR158 ST_JR209 ST_JR72 ST_JR84 ST_JR91 ST_MSH177 ST_MSH217 CH_JR198 CH_JR20 CH_JR272 CH_JR356 CH_JR377 CH_KB888 CH_MSH202 TL_MA1959 TL_MSH130 TL_SCI12-2 TL_SPE123_2-3 TL_SPE123_5-1 TL_SPE123_6-3 TL_SPE123_7-1 TL_SPE123_8-1 CU_SPE123_1-2 CU_SPE123_4-1 Dmir_SP138

....: 55 C T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T C

....: 380 G G A A G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G A G G G G G G G G G

....: 391 A A G A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A

....: 402 G A A A A G A A A A A A A A A G A A A A A A A A A A A A A A A A A A A G A A A G A A A A G A A A A G

....: 422 A C C C C C C C C C C C C C C A A C C C C C C C C C C C C C C C C C C A C C C A C C C C A C C C C A

....: 564 G G G G G G G G G G G G G G G G G G G G G G G G A A G G G G G G A G G G G G G G G G G G G G G G G G

....: """

In [22]: import pandas as pd

In [23]: SNP_df = pd.read_csv(StringIO(data), sep='\s+', index_col=None, nrows=101)

In [24]: SNP_df['AR_DM1005']

Out[24]:

0 T

1 G

2 A

3 A

4 C

5 G

Name: AR_DM1005, dtype: object

In [25]: ''.join(SNP_df['AR_DM1005'])

Out[25]: 'TGAACG'