Table:
Gene	Neutrality test	Mismatch distribution
Fu’s FS	Tajima’s D	τ	t (ka)
Siphonaria japonica
COI	northern group	−25.029***	−2.199*	5.750 (4.094-8.898)	440.9 (313.9-682.4)
southern group	−26.964***	−2.781***	2.486 (1.361-3.381)	190.6 (104.4-259.3)
Cellana toreuma
COI	−30.175***	−2.497***	3.000 (0.422-3.213)	502.5 (70.7-538.2.)
Sargassum horneri
COIII	−18.353***	−1.531*	1.875 (0.75-3.072)	119.3 (47.7-195.5)
Atrina pectinata
COI	−26.277***	−2.527***	1.648 (1.295-4.086)	170.1 (133.7-421.7)

What are the following table content in markdown style: | <ROWSPAN=2> Gene | <ROWSPAN=2>  | <COLSPAN=2> Neutrality test | <COLSPAN=2> Mismatch distribution | 
 | Fu’s FS | Tajima’s D | τ | t (ka) | 
 | --- | --- | --- | --- | --- | --- | 
 | <COLSPAN=6> Siphonaria japonica | 
 | COI | northern group | −25.029*** | −2.199* | 5.750 (4.094-8.898) | 440.9 (313.9-682.4) | 
 |  | southern group | −26.964*** | −2.781*** | 2.486 (1.361-3.381) | 190.6 (104.4-259.3) | 
 | <COLSPAN=6> Cellana toreuma | 
 | COI |  | −30.175*** | −2.497*** | 3.000 (0.422-3.213) | 502.5 (70.7-538.2.) | 
 | <COLSPAN=6> Sargassum horneri | 
 | COIII |  | −18.353*** | −1.531* | 1.875 (0.75-3.072) |

119.3 (47.7-195.5) | 
 | <COLSPAN=6> Atrina pectinata | 
 | COI |  | −26.277*** | −2.527*** | 1.648 (1.295-4.086) | 170.1 (133.7-421.7) |