Table 3. Results of Tajima relative rate test.

Ingroup1	Ingroup2	Outgroup	Identical sites	Divergent sites	Ingroup1 specific a	Ingroup2 specific	Outgroup specific	Chi-square statistic	p-value	Slow
Gossypium hirsutum	Tilia mandshurica	Theobroma cacao	125,627	113	2456	725	1801	941.96	< 0.001	Tilia mandshurica
Gossypium hirsutum	Tilia paucicostata	Theobroma cacao	125,624	112	2458	727	1801	940.77	< 0.001	Tilia paucicostata
Gossypium hirsutum	Tilia amurensis	Theobroma cacao	125,670	104	2452	694	1813	982.38	< 0.001	Tilia amurensis
Gossypium hirsutum	Tilia oliveri	Theobroma cacao	125,625	112	2451	720	1804	944.93	< 0.001	Tilia oliveri

^a These nucleotide sites were identical in ingroup2 and outgroup but not in ingroup1, and the same idea applies for ingroup2 and outgroup specific.