Table 1.
Summary of average chromosome number and genome size (mean ± SD) values for all Machilis populations sampled in this study, including additional information on reproductive mode, number of individuals per population, and sex
| Species name | Repr. mode | Sampling location | Number of specimens | Number of chromosomes | FN | Mean relative genome size (±SD) | Ploidy level | |||
|---|---|---|---|---|---|---|---|---|---|---|
| F | M | F (2n) | M (n) | F | M | |||||
| Machilis helleri | S | ADM (AT) | 2 | 2 | 52 | 26 | 124 | 1.49 ± 0.01 | 1.46 ± 0.02 | 2n |
| S | EIS (AT) | 4 | 1 | 52 | 26 | 124 | 1.56 ± 0.3 | 1.45 | 2n | |
| S | GIE (AT) | 5 | 4 | n/a | 25, 511 | n/a | 1.60 ± 0.01 | 1.60 ± 0.01 | 2n | |
| S | HWD (AT) | 8 | 3 | 50 | 25 | 124 | 1.60 ± 0.02 | 1.57 ± 0.01 | 2n | |
| S | RAX (AT) | 3 | 1 | n/a | 25 | n/a | 1.55 ± 0.04 | 1.49 | 2n | |
| S | UST (CZ) | 4 | 0 | 52 | n/a | n/a | 1.45 ± 0.02 | n/a | 2n | |
| Machilis hrabei | S | BRN (CZ) | 4 | 6 | 52 | 26 | 140 | 1.90 ± 0.02 | 1.89 ± 0.02 | 2n |
| S | KNB (AT) | 3 | 5 | 52 | 26 | 140 | 1.83 ± 0.01 | 1.77 ± 0.02 | 2n | |
| S | VIE (AT) | 4 | 2 | 52 | 26 | 140 | 1.86 ± 0.02 | 1.85 ± 0.03 | 2n | |
| Machilis lehnhoferi | S | GLK (AT) | 4 | 1 | 52 | 26, 521 | 128 | 1.73 ± 0.3 | 1.77 | 2n |
| S | HAI (AT) | 3 | 0 | 52 | n/a | 128 | 5.82 ± 0.03 | n/a | 2n | |
| S | HUN (AT) | 1 | 1 | 52 | 26, 521 | n/a | 1.7 | 1.77 | 2n | |
| S | OBE (DE) | 3 | 2 | 52 | 26 | n/a | 1.76 ± 0.02 | 1.76 ± 0.08 | 2n | |
| S | OBL (AT) | 4 | 0 | 52 | n/a | 128 | 1.71 ± 0.05 | n/a | 2n | |
| S | SAA (AT) | 0 | 3 | n/a | 26 | n/a | n/a | 1.77 ± 0.01 | 2n | |
| S | SAL (AT) | 0 | 4 | n/a | 26 | n/a | n/a | 1.76 ± 0.02 | 2n | |
| S | STZ (AT) | 3 | 0 | 52 | n/a | n/a | 1.72 ± 0.02 | n/a | 2n | |
| Machilis distincta | P | EIS (AT) | 10 | 50 | 140 | 1.73 ± 0.03 | 2n | |||
| P | KRK (AT) | 1 | 50 | n/a | 1.73 | 2n | ||||
| P | LDC (IT) | 1 | 50 | n/a | 1.74 | 2n | ||||
| P | MUR (AT) | 9 | 50 | n/a | 1.73 ± 0.01 | 2n | ||||
| P | NIK (AT) | 8 | 50 | n/a | 1.72 ± 0.02 | 2n | ||||
| P | SAA (AT) | 2 | 50 | n/a | 1.74 ± 0.00 | 2n | ||||
| P | SLD (AT) | 4 | 50 | 140 | 1.74 ± 0.02 | 2n | ||||
| P | SMT (IT) | 4 | 50 | 140 | 1.72 ± 0.02 | 2n | ||||
| P | STA (IT) | 2 | 50 | n/a | 1.73 ± 0.03 | 2n | ||||
| P | TOB (IT) | 1 | 50 | n/a | 1.73 | 2n | ||||
| Machilis fuscistylis | P | FOT (AT) | 3 | 54 | 148 | 1.46 ± 0.02 | 2n | |||
| P | HIN (AT) | 6 | 56 | 156 | 1.50 ± 0.01 | 2n | ||||
| P | MAR (IT) | 1 | 54 | 148 | 1.47 | 2n | ||||
| P | OBG (AT) | 4 | 54 | 148 | 1.47 ± 0.03 | 2n | ||||
| P | SRK (AT) | 1 | 54 | n/a | 1.46 | 2n | ||||
| Machilis pallida | P | MAD (IT) | 8 | 78 | n/a | 2.30 ± 0.03 | 3x | |||
| P | SEI (IT) | 4 | 78 | 186 | 2.29 ± 0.02 | 3x | ||||
| P | TRI (AT) | 5 | 78 | n/a | 2.31 ± 0.03 | 3x | ||||
| Machilis tirolensis | P | EBK (AT) | 4 | 75 | 198 | 2.54 ± 0.03 | 3x | |||
| P | KRK (AT) | 2 | 75 | n/a | 2.54 ± 0.04 | 3x | ||||
| P | LDC (IT) | 6 | 50 | 132 | 1.61 ± 0.02 | 2n | ||||
| P | LDL (IT) | 3 | 50 | 132 | 1.62 ± 0.02 | 2n | ||||
| P | RAU (AT) | 1 | 75 | n/a | 2.54 | 3x | ||||
| P | SAR (IT) | 3 | 75 | n/a | 2.54 ± 0.02 | 3x | ||||
| P | STA (IT) | 3 | 50 | n/a | 1.60 ± 0.01 | 2n | ||||
| Machilis ticinensis | P | BRA (AT) | 2 | 46 | 128 | 1.67 ± 0.06 | 2n | |||
| P | KRK (AT) | 1 | 46 | n/a | 1.65 | 2n | ||||
| P | NEN (AT) | 7 | 46 | 128 | 1.69 ± 0.01 | 2n | ||||
| P | RAN (AT) | 1 | 46 | n/a | 1.67 | 2n | ||||
| P | RAU (AT) | 2 | 46 | 128 | 1.68 ± 0.02 | 2n | ||||
| S | MIR (CH) | 8 | 2 | 46, 46 + Bs | 23 | 128 | 2.01 ± 0.06 | 1.95 ± 0.01 | 2n | |
| Total | 41 | 172 | 37 | |||||||
FN, fundamental number of arms; F, females; M, males; S, sexual; P, parthenogenetic; n/a, not available (or not applicable); AT, Austria; CZ, Czech Republic; DE, Germany; IT, Italy; CH, Switzerland; Bs, B chromosomes.
1
2n chromosome numbers are additionally given in males when mitotic chromosomes were found.