Table 1.
Table of various summary statistics generated in Arlequin for both STR and mt, and for “world” and “Réunion” datasets (see Methods). A subset of these statistics were used in DIYABC to compare simulated with observed datasets
| “World” lineages | “Réunion” populations | |||||||
|---|---|---|---|---|---|---|---|---|
| Statistic | A | B | C | D | A | B | C | D |
| mtDNA | ||||||||
| No. of gene copies | 58 | 29 | 163 | 33 | 22 | 29 | 30 | 16 |
| No. of haplotypes | 37 | 12 | 43 | 21 | 8 | 12 | 16 | 10 |
| No. of polymorphic sites | 91 | 22 | 72 | 57 | 15 | 22 | 40 | 30 |
| Haplotype diversity (S.D.) | 0.943 (0.023) | 0.882 (0.038) | 0.899 (0.014) | 0.945 (0.025) | 0.758 (0.078) | 0.882 (0.038) | 0.924 (0.031) | 0.917 (0.049) |
| Nucleotide diversity (S.D.) | 0.019 (0.009) | 0.007 (0.004) | 0.011 (0.006) | 0.016 (0.008) | 0.008 (0.004) | 0.007 (0.004) | 0.011 (0.006) | 0.014 (0.007) |
| Mean no. of pairwise differences (S.D.) | 13.672 (6.230) | 5.039 (2.520) | 8.153 (3.802) | 11.949 (5.545) | 5.982 (2.965) | 5.039 (2.520) | 7.834 (3.751) | 10.033 (4.843) |
| Tajima's D | −1.060 | −0.356 | −1.110 | −0.551 | 1.637 | −0.356 | −0.825 | 0.454 |
| P-value | (0.122) | (0.397) | (0.134) | (0.328) | (0.957) | (0.404) | (0.208) | (0.721) |
| Mean no. of alleles (S.D.) | 1.132 (0.362) | 1.030 (0.170) | 1.106 (0.333) | 1.080 (0.282) | 1.022 (0.155) | 1.030 (0.170) | 1.058 (0.251) | 1.042 (0.208) |
| FST* | ||||||||
| -B | 0.754 | 0.876 | ||||||
| -C | 0.695 | 0.787 | – | – | 0.784 | 0.815 | – | |
| -D | 0.674 | 0.761 | 0.731 | – | 0.811 | 0.808 | 0.748 | |
| STR | ||||||||
| No. of gene copies | 116 | 58 | 326 | 66 | 44 | 58 | 60 | 32 |
| No. of haplotypes | 56 | 23 | 149 | 31 | 21 | 22 | 29 | 14 |
| No. of polymorphic loci | 14 | 14 | 10 | 11 | 15 | 13 | 11 | 13 |
| Mean no. of alleles (S.D.) | 11.421 (3.322) | 3.053 (1.580) | 11.632 (10.683) | 7.737 (3.263) | 3.062 (1.237) | 3.375 (1.500) | 7.250 (4.669) | 3.812 (2.228) |
| Mean allelic range (S.D.) | 37.474 (21.054) | 9.471 (7.787) | 23.667 (23.607) | 21.211 (23.129) | 8.188 (9.669) | 10.000 (7.720) | 18.938 (20.352) | 9.812 (10.426) |
| Garza-Williamson statistic (S.D.) | 0.395 (0.226) | 0.518 (0.335) | 0.556 (0.181) | 0.583 (0.305) | 0.608 (0.337) | 0.488 (0.321) | 0.573 (0.301) | 0.508 (0.260) |
| Mean genic diversity (S.D.) | 0.707 (0.361) | 0.415 (0.308) | 0.438 (0.240) | 0.562 (0.300) | 0.343 (0.188) | 0.383 (0.210) | 0.517 (0.279) | 0.480 (0.260) |
| Expected heterozygosity (S.D.) | 0.741 (0.132) | 0.371 (0.318) | 0.563 (0.315) | 0.633 (0.214) | 0.362 (0.266) | 0.425 (0.315) | 0.638 (0.281) | 0.490 (0.228) |
| FST* | ||||||||
| -B | 0.163 | – | – | – | 0.795 | – | – | – |
| -C | 0.562 | 0.680 | 0.694 | 0.772 | – | – | ||
| -D | 0.078 | 0.321 | 0.515 | 0.556 | 0.806 | 0.533 | ||
| Δμ2 | ||||||||
| -B | 90.618 | – | – | – | 242.931 | – | – | – |
| -C | 90.635 | 187.302 | – | – | 242.086 | 209.792 | – | – |
| -D | 14.416 | 125.063 | 73.209 | – | 58.074 | 177.643 | 106.579 | – |
*
Significance indicated with italics