Morphological and Molecular Characterization of Hoplolaimus tuberosus n. sp. (Nematoda: Hoplolaimidae) Associated with Potato in Uganda
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19 jul 2025
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Categoría del artículo: Research Paper
Publicado en línea: 19 jul 2025
Recibido: 22 dic 2024
DOI: https://doi.org/10.2478/jofnem-2025-0025
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© 2025 Rose Mwesige et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Comparison of Hoplolaimus tuberosus n_ sp_ with seven Hoplolaimus species reported from Africa, focusing on some key female characteristics and the presence of males_
| 1.2–1.8 | 10–12 | 4 (rarely 3or 5) | 1 (2–3 incomplete) | 45–51 | 6 | Anterior | One anterior and one posterior | 8–10 | Present | 46–58 | |
| 0.95 –1.7 | 18–35 | 4–5 | 1 (2–3) | 38–49 | 3 | Anterior | One anterior and one posterior | 7–15 | Present | 40–57 | |
| 1.2–1.9 | 32–36 | 5 | 4 | 43–52 | 3 | Posterior | One anterior and one posterior | 10–16 | Present | 40–52 | |
| 1–1.6 | 8–12 | 4 | 1 | 40–49 | 6 | Anterior | One anterior and one posterior | 10–15 | Unknown | ||
| 1.3–1.9 | 13–22 | 4 | 1 | 45–50 | 5 (6th obscure) | Anterior | One anterior and one posterior | 17–27 | Present | 54–65 | |
| 1.3–1.8 | 10–15 | 3 | 1 | 40–48 | 6 | Anterior | One anterior and one posterior | 16–22 | Rarely present | 36.6–52.5 | |
| 1.4–1.8 | 18–31 | 4 (rarely 3or 5) | 4 | 46–52.5 | 6 | Posterior | One anterior and one posterior | 20–26 | Present | 58.5 (55.5–61.5) | |
| 1.1–1.6 | 6–20 | 3–4 | 1 or (2–3 incomplete) | 33–47 | 6 | Anterior | One anterior and one posterior | 14 (8–22) | Present | 34–42 |
Morphometrics of Hoplolaimus tuberosus n_ sp_ specimens from Budwale subcounty Eastern Uganda (GPS location: 1° 3′ 36_5394″N; 34° 14′ 55_0674″E)_
| n | 1 | 18 | 11 |
| L | 1273 | 1439 ± 146 (1211–1629) | 1216 ± 92 (1048–1343) |
| a | 22 | 22 ± 1.2 (20.7–23.8) | 23.6 ± 1.5 (22–27.3) |
| b | 10 | 10.2 ± 1.1 (8.6–12.3) | 9 ± 0.8 (8.2–8.4) |
| b′ | 7 | 8 ± 0.61 (6.2–9) | 7 ± 0.6 (6.1–8) |
| c | 93.5 | 99.8 ± 10 (85–122) | 30 ± 2.3 (25–33) |
| c′ | 0.42 | 0.44 ± 0.04 (0.36–0.6) | 1.6 ± 0.1 (1.4–1.8) |
| V | 724 | 823 ± 82 (697–1013) | |
| V(%) | 57 | 57 ± 1.06 (55–59.5) | |
| Max. body diam | 58 | 64 ± 4 (58–70) | 51.5 ± 4 (45–60) |
| Diameter at mid body | 56 | 60 ± 5 (50–66) | 50 ± 4 (43.5–58) |
| Lip annuli | 4–5 | 4–5 | 4 |
| Lip height | 8.3 | 7.5 ± 0.7 (6.7–9) | 8 ± 0.5 (7–8.3) |
| Lip diam. | 15.7 | 16.5 ± 1.1 (15–18) | 15 ± 0.6 (14.2–16.4) |
| Conus | 25.5 | 25 ± 1 (24–26) | 23.6 ± 0.6 (22.3–24.2) |
| Stylet length | 49 | 48 ± 1.6 (45.4–51) | 45.6 ± 1.3 (43–47.3) |
| Knob diam. | 7.7 | 8.6 ± 0.86 (6.8–10) | 7.5 ± 1 (6.7–9) |
| Knob height | 7 | 6.6 ± 0.8 (5–7.5) | 6 ± 0.2 (5.6–6.2) |
| Stylet knobs to end of pharyngeal gland | 131 | 147 ± 10 (130–163) | 137 ± 10 (126–154) |
| Pharynx & glands (anterior to pharyngeal gland tip) | 184 | 184 ± 17 (153–221) | 178 ± 17.7 (142–203) |
| Tail length | 13.6 | 14 ± 1.07 (11.3–16) | 41 ± 3.5 (45.6–46) |
| Anal body diam. | 32 | 32 ± 1.3 (30–36) | 26 ± 2 (22.5–29) |
| Excretory pore (from anterior end) | 93 | 113 ± 10 (93–125) | 104 ± 12 (94–121) |
| DGO | 6.3 | 7 ± 0.5 (5.9–8) | 6 ± 0.4 (5.6–6.6) |
| Spicule length | 52 ± 3.6 (46–58) | ||
| Gubernaculum | 22.6 ± 2 (21.5–27) | ||
| Annulus diam. | 2.5 | 2.7 ± 0.3 (2.1–3) | 2.5 ± 0.2 (2.2–3) |