Table 3 The variability and discrimination rates of cp genomes, specific and universal barcodes
No | Markers | Aligned length | Polymorphic sites | Parsimony informative sites (PICs) | Mean K2P distance | Discrimination rates by tree-based method | ||
|---|---|---|---|---|---|---|---|---|
Numbers | % | Numbers | % | |||||
| Â | Complete cp genomes | 136,352 | 4664 | 3.42% | 2175 | 1.60% | 0.00824 | 100% |
| Â | Specific barcodes | |||||||
1 | trnH(GUG)-psbA | 506 | 65 | 12.85% | 30 | 5.93% | 0.03880 | 100% |
2 | trnE(UUC)-trnT(GGU) | 1155 | 118 | 10.22% | 58 | 5.02% | 0.02759 | 35.29% |
3 | psbZ-trnG(GCC) | 1189 | 138 | 11.61% | 55 | 4.63% | 0.03028 | 64.71% |
4 | trnF(GAA)-ndhJ | 977 | 157 | 16.07% | 108 | 11.05% | 0.04316 | 70.59% |
5 | petA-psbL | 1580 | 129 | 8.16% | 69 | 4.37% | 0.03071 | 64.71% |
6 | ccsA-ndhD | 300 | 46 | 15.33% | 24 | 8.00% | 0.04475 | 41.18% |
7 | ndhF-trnL(UAG) | 1923 | 222 | 11.54% | 93 | 4.84% | 0.03428 | 47.06% |
|  | Combination (1–2-3) | 2850 | 321 | 11.26% | 143 | 5.02% | 0.03034 | 100% |
| Â | Universal barcodes | |||||||
1 | psbK-psbI | 424 | 25 | 5.90% | 17 | 4.01% | 0.02121 | 41.18% |
2 | atpF-atpH | 625 | 46 | 7.36% | 15 | 2.40% | 0.01793 | 47.06% |
|  | Combination (1–2) | 1049 | 71 | 6.77% | 32 | 3.05% | 0.01929 | 47.06% |