Table 3. Genetic bottleneck of Mikania micrantha populations from six introduced regions in southern China.

	SMM		IAM
Region	He/Hd	P	He/Hd	P
HK81	268/45	0.00000	268/45	0.00000
HK82	230/43	0.00000	230/43	0.00000
HK84	101/24	0.00000	102/23	0.00000
HK85	156/32	0.00000	156/32	0.00000
HK87	75/20	0.00000	75/20	0.00000
HK88	172/33	0.00000	172/33	0.00000
HK89	202/41	0.00000	202/41	0.00000
HK90	175/28	0.00000	175/28	0.00000
Hong Kong	277/165	0.00000	302/140	0.00000
MA101	177/60	0.00000	177/60	0.00000
MA105	138/35	0.00000	138/35	0.00000
MA106	30/9	0.00448	30/9	0.00007
Macao	199/119	0.00000	242/76	0.00000
SZ34	149/27	0.00000	149/27	0.00000
SZ35	72/13	0.00000	72/13	0.00000
SZ64	174/38	0.00000	174/38	0.00000
SZ72	52/6	0.00000	52/6	0.00000
SZ75	230/37	0.00000	230/37	0.00000
SZ77	212/31	0.00000	212/31	0.00000
Shenzhen	243/123	0.00000	289/77	0.00000
NLD1	171/25	0.00000	171/25	0.00000
NLD10	41/11	0.00032	41/11	0.00000
NLD15	149/31	0.00000	149/31	0.00000
NLD26	50/9	0.00000	50/9	0.00000
NLD29	186/37	0.00000	186/37	0.00000
NLD30	42/5	0.00000	42/5	0.00000
NLD31	119/22	0.00000	119/22	0.00000
Neilingding	222/128	0.00000	238/112	0.00000
ZH43	250/40	0.00000	250/40	0.00000
ZH50	221/46	0.00000	221/46	0.00000
Zhuhai	311/65	0.00000	323/53	0.00000
DG91	146/38	0.00000	146/38	0.00000
DG92	113/58	0.00000	115/56	0.00000
Dongguan	201/40	0.00000	214/27	0.00000
Total	309/174	0.00000	337/146	0.00000

P values are determined by a sign test under the stepwise mutation model (SMM) and the infinite allele model (IAM). H_e/H_d, the heterozygosity excess/deficiency ratio.