Figure 1
Figure 2
Figure 3
Genetic diversity within populations and genetic differentiation parameters of analysed populations of Betula nana
| Population | P (%) | Na | Ne | I | He |
|---|---|---|---|---|---|
| Abisko | 52.5 | 1.325 | 1.265 | 0.259 | 0.167 |
| Malbo | 72.5 | 1.675 | 1.458 | 0.396 | 0.265 |
| Storlien | 52.5 | 1.300 | 1.177 | 0.200 | 0.121 |
| Gällivare | 30.0 | 0.900 | 1.090 | 0.111 | 0.066 |
| Mean | 51.9 | 1.300 | 1.245 | 0.242 | 0.155 |
| Linje | 66.7 | 1.333 | 1.256 | 0.290 | 0.179 |
Range of length and number of DNA fragments of Betula nana determined by RAPD
| Primer name | Number of polymorphic DNA fragments | Size range of polymorphic DNA fragments (bp) |
|---|---|---|
| OPA09 | 14 | 90–900 |
| OPC14 | 12 | 90–1030 |
| OPC02 | 16 | 120–1200 |
Summary of genetic diversity statistics for all loci in relation to the geographic location of Betula nana populations in the north and south of Sweden
| Ht | Hs | Gst | Nm | |
|---|---|---|---|---|
| All populations | 0.2240 | 0.1548 | 0.3171 | 1.100 |
| Abisko/Gällivare | 0.1428 | 0.1166 | 0.1800 | 2.220 |
| Malbo/Storlien | 0.2559 | 0.1930 | 0.2460 | 1.532 |
Results of an AMOVA showing the distribution of genetic variation among Betula nana populations and within populations based on RAPD
| Source of variations | Degree of freedom | Sum of squares | Variance components | % of total variance | P value |
|---|---|---|---|---|---|
| Among populations | 3 | 126.738 | 1.912 | 32 | <0.001 |
| Within populations | 76 | 304.350 | 4.005 | 68 | <0.001 |
| Total | 79 | 431.088 | 5.917 | 100 |