Table 3.
Gene flow and genetic differentiation among sugarcane yellow leaf virus (SCYLV) subpopulations based on geographic origins.
| Genomic region | Comparisons | Ks* (P value) | Z* (P value) | Snn (P value) | Fst | Nm |
|---|---|---|---|---|---|---|
| ORFs 0–5 | Asia (n = 23) versus Africa (n = 10) | 5.23017 (0.0000***) | 6.24901 (0.0000***) | 1.00000 (0.0000***) | 0.45497 | 0.60 |
| Asia (n = 23) versus America (n = 14) | 5.54500 (0.0030**) | 6.77899 (0.0000***) | 0.94595 (0.0000***) | 0.05951 | 7.90 | |
| Africa (n = 10) versus America (n = 14) | 5.03290 (0.0000***) | 5.48287 (0.0000***) | 1.00000 (0.0000***) | 0.40116 | 0.75 | |
| ORF0 (P0) | Asia (n = 23) versus Africa (n = 10) | 3.52869 (0.0000***) | 6.18396 (0.0000***) | 1.00000 (0.0000***) | 0.43323 | 0.65 |
| Asia (n = 23) versus America (n = 14) | 3.94367 (0.0130*) | 6.79418 (0.0000**) | 1.00000 (0.0000***) | 0.02270 | 21.52 | |
| Africa (n = 10) versus America (n = 14) | 3.07647 (0.0000***) | 5.48663 (0.0000***) | 1.00000 (0.0000***) | 0.34610 | 0.94 | |
| ORF1 (P1) | Asia (n = 23) versus Africa (n = 10) | 4.25633(0.0000***) | 6.18533 (0.0000***) | 1.00000 (0.0000***) | 0.47999 | 0.54 |
| Asia (n = 23) versus America (n = 14) | 4.57621 (0.0080**) | 6.79286 (0.0000***) | 1.00000 (0.0000***) | 0.05817 | 8.10 | |
| Africa (n = 10) versus America (n = 14) | 3.94750 (0.0000***) | 5.46695 (0.0000***) | 1.00000 (0.0000***) | 0.42363 | 0.68 | |
| ORF1-2 (RdRP) | Asia (n = 23) versus Africa (n = 10) | 4.55296 (0.0000***) | 5.96501 (0.0000***) | 1.00000 (0.0000***) | 0.42196 | 0.68 |
| Asia (n = 23) versus America (n = 14) | 4.83504 (0.0140*) | 6.56737 (0.0030**) | 0.93939 (0.0000***) | 0.01581 | 31.13 | |
| Africa (n = 10) versus America (n = 14) | 4.42390 (0.0000***) | 5.50327 (0.0000***) | 1.00000 (0.0000***) | 0.41083 | 0.72 | |
| ORF3 (CP) | Asia (n = 23) versus Africa (n = 10) | 1.99034 (0.0000***) | 6.42184 (0.0000***) | 0.94805 (0.0000***) | 0.38354 | 0.80 |
| Asia (n = 23) versus America (n = 14) | 2.22958 (0.0120*) | 6.83625 (0.0000***) | 0.85621 (0.0000***) | 0.06444 | 7.26 | |
| Africa (n = 10) versus America (n = 14) | 1.84867 (0.0000***) | 5.74703 (0.0000***) | 0.92024 (0.0000***) | 0.27405 | 1.32 | |
| ORF3-5 (RTD) | Asia (n = 23) versus Africa (n = 10) | 4.22064 (0.0000***) | 6.21377 (0.0000***) | 1.00000 (0.0000***) | 0.46086 | 0.58 |
| Asia (n = 23) versus America (n = 14) | 4.59517 (0.0000***) | 6.78249 (0.0000***) | 0.95045 (0.0000***) | 0.06138 | 7.65 | |
| Africa (n = 10) versus America (n = 14) | 4.06444 (0.0000***) | 5.48591 (0.0000***) | 1.00000 (0.0000***) | 0.40357 | 0.74 | |
| ORF4 (MP) | Asia (n = 23) versus Africa (n = 10) | 1.41525 (0.0000***) | 6.44432 (0.0000***) | 0.81567 (0.0000***) | 0.40385 | 0.74 |
| Asia (n = 23) versus America (n = 14) | 1.76195 (0.0130*) | 6.80554 (0.0060**) | 0.79410 (0.0000***) | 0.08389 | 5.46 | |
| Africa (n = 10) versus America (n = 14) | 1.21246 (0.0000***) | 5.86777 (0.0000***) | 0.80136 (0.0000***) | 0.20976 | 1.88 |
Symbols are showed for three permutation statistical tests of Ks*, Z*, and Snn at different statistical significance levels: *0.01 < P ≤ 0.05; **0.001 < P ≤ 0.01; ***P ≤ 0.001.