Table 1.
Corrected percent sequence divergence among mitochondrial control region sequences (.mt) and homologous nuclear sequences (.N) for taxa in Fig. 2
| Taxa | Mean % distance (range)
|
|||||
|---|---|---|---|---|---|---|
| AM.N | AM.mt | VA/FE.N | VA/FE.mt | |||
| Outgroup | 15.8 | < | 18.4 | 13.5 | < | 18.4 |
| (13.8–18.6) | (14.1–23.0) | (10.3–15.7) | (14.1–23.0) | |||
| CO.mt | 7.9 | < | 12.1 | 10.3 | < | 15.4 |
| (7.4–8.4) | (9.1–14.0) | (9.6–11.0) | (12.9–18.3) | |||
| AM.N | 0 | 7.2 | 8.4 | < | 14.9 | |
| (6.1–8.1) | (11.8–17.2) | |||||
| AM.mt | 1.8* | 12.9 | < | 15.0 | ||
| (0.5–3.7)* | (10.9–14.9) | (11.8–19.0) | ||||
| VA/FE.N | 8.4 | < | 12.9 | 0 | 9.7 | |
| (10.9–14.9) | (7.9–11.5) | |||||
| VA/FE.mt | 14.9 | < | 15.0 | 2.5* | ||
| (11.8–17.2) | (11.8–19.0) | (0.3–5.9)* | ||||
We used a = 0.5 in the distance formula (23). Positions with alignment gaps in one or more taxa (22 of 392) were excluded from all comparisons. Outgroup as in Fig. 2. Mitochondrial sequences for A. valisineria (VA) and A. ferina (FE) were combined in a single group for this analysis. AM, A. americana; CO, A. collaris.
*
Intragroup distances are biased upward by our deliberate selection of divergent mtDNA haplotypes.