谁能帮我看看这个GEDmatch的一对一比较是什么意思？

常染色体比较-V2.1.1(C)Comparing Kit M156912 (*Leo) and W666129 (Zhang zhiyi)

Minimum threshold size to be included in total = 500 SNPs
Mismatch-bunching Limit = 250 SNPs
Minimum segment cM to be included in total = 7.0 cM

Largest segment = 0.0 cM
Total of segments > 7 cM = 0.0 cM
(2181) No shared DNA segments found

412214 SNPs used for this comparison.

Comparison took 0.03876 seconds.
2017年4月23日21：26：52
 
完全看不懂，有人可以分析吗？