Table 1 Sampling locations, codes, sample size (mitochondrial/microsatellite), haplotype and nucleotide diversity of mtDNA and microsatellite diversity indices. Average number alleles/locus (A), mean allelic richness (A_R) per population, expected (H_E) and observed (H_O) heterozygosities

Zhejiang-Fujian subregion

33/33

0.835

0.122

0.196

9.308

7.029

1.Jian’ou (JO)

118.18

27.02

13/13

0.859

0.075

0.085

7.385

6.283

0.905

0.790

−0.153

2.Huaan (HA)

117.31

25.00

20/20

0.816

0.134

0.179

11.231

7.774

0.896

0.863

−0.039

Pearl River subregion

52/52

0.986

0.391

0.762

12.128

8.587

3.Heyuan (HY)

114.41

23.44

9/9

1.000

0.384

0.565

8.154

7.697

0.755

0.851

0.119

4.Jinxiu (JX)

110.10

24.07

23/23

0.980

0.333

0.657

14.308

9.085

0.919

0.905

−0.016

5.Chunxi (CX)

111.56

22.27

20/20

0.989

0.468

0.488

13.923

8.980

0.732

0.900

0.191

Hainan Island subregion

72/71

0.960

0.777

0.689

13.461

8.271

6.Qionghai (QH)

110.18

19.09

24/23

0.953

0.250

0.284

14.385

8.704

0.886

0.872

−0.016

7.Basha (BS)

109.26

19.13

24/24

0.920

0.197

0.284

15.077

9.056

0.922

0.885

−0.044

8.Ledong (LD)

109.10

18.44

24/24

0.801

0.257

0.312

10.923

7.054

0.767

0.780

0.041

Total

157/156

0.981

0.744

1.064

11.923

10.001