Table 2.
Estimation of the evolutionary parameters in CDS of SWEET genes in monocot-specific (M) and dicot-specific (D) families.
| Subfamilies | Breakpoint | average dN/dS | Positive selected sites | ||
|---|---|---|---|---|---|
| PAML | MEGA | PAML | REL | ||
| D1 (n = 24) | 2 | kappa (ts/tv) = 2.22573 | 0.27 | 0 | 1 |
| omega (dN/dS) = 0.17350 | |||||
| D2 (n = 17) | 1 | kappa (ts/tv) = 2.34758 | 0.27 | 3 | 0 |
| omega (dN/dS) = 0.20566 | |||||
| D3 (n = 48) | 0 | kappa (ts/tv) = 2.09627 | 0.22 | 0 | 0 |
| omega (dN/dS) = 0.17602 | |||||
| D4 (n = 26) | 0 | kappa (ts/tv) = 1.94345 | 0.24 | 0 | 0 |
| omega (dN/dS) = 0.20298 | |||||
| D5 (n = 27) | 1 | kappa (ts/tv) = 1.76817 | 0.25 | 0 | 0 |
| omega (dN/dS) = 0.23493 | |||||
| D6 (n = 55) | 1 | kappa (ts/tv) = 2.12555 | 0.28 | 0 | 0 |
| omega (dN/dS) = 0.25548 | |||||
| D7 (n = 51) | 2 | kappa (ts/tv) = 1.77940 | 0.26 | 0 | 0 |
| omega (dN/dS) = 0.23949 | |||||
| D8 (n = 82) | — | kappa (ts/tv) = 1.81571 | 0.25 | 0 | 0 |
| omega (dN/dS) = 0.16717 | |||||
| D9 (n = 27) | 2 | kappa (ts/tv) = 1.63182 | 0.25 | 0 | 1 |
| omega (dN/dS) = 0.23613 | |||||
| D10 (n = 10) | 2 | kappa (ts/tv) = 1.84935 | 0.2 | 0 | 2 |
| omega (dN/dS) = 0.13327 | |||||
| D11 (n = 34) | — | kappa (ts/tv) = 2.32344 | 0.3 | 0 | 0 |
| omega (dN/dS) = 0.25915 | |||||
| M1 (n = 12) | 2 | kappa (ts/tv) = 1.95556 | 0.18 | 0 | 0 |
| omega (dN/dS) = 0.04435 | |||||
| M2 (n = 12) | 2 | kappa (ts/tv) = 2.26036 | 0.17 | 1 | 1 |
| omega (dN/dS) = 0.06837 | |||||
| M3 (n = 7) | 1 | kappa (ts/tv) = 2.81331 | 0.29 | 7 | 3 |
| omega (dN/dS) = 0.20874 | |||||
| M4 (n = 17) | 1 | kappa (ts/tv) = 2.26629 | 0.29 | 0 | 1 |
| omega (dN/dS) = 0.06631 | |||||
| M5 (n = 22) | 2 | kappa (ts/tv) = 1.66804 | 0.3 | 0 | 2 |
| omega (dN/dS) = 0.06220 | |||||
| M6 (n = 21) | 2 | kappa (ts/tv) = 1.95398 | 0.18 | 0 | 0 |
| omega (dN/dS) = 0.09371 | |||||
| M7 (n = 17) | 2 | kappa (ts/tv) = 1.69771 | 0.31 | 4 | 2 |
| omega (dN/dS) = 0.11889 | |||||
| M8 (n = 8) | 2 | kappa (ts/tv) = 2.24502 | 0.28 | 1 | 1 |
| omega (dN/dS) = 0.13685 | |||||
| M9 (n = 6) | 4 | kappa (ts/tv) = 2.89785 | 0.26 | 0 | 0 |
| omega (dN/dS) = 0.08899 | |||||
| M10 (n = 7) | 7 | kappa (ts/tv) = 3.46399 | 0.25 | 0 | 0 |
| omega (dN/dS) = 0.18943 | |||||
| HUS1-D | 1 | kappa (ts/tv) = 2.00941 | 0.11 | 0 | 0 |
| omega (dN/dS) = 0.13757 | |||||
| HUS1-M | 0 | kappa (ts/tv) = 1.85000 | 0.13 | 0 | 0 |
| omega (dN/dS) = 0.09842 | |||||
n represent sequence numbers within these families;ts/tv means transition/transversion rate; dN/ds means non-synonymous/synonymous rate.