New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China
A new nematode species, Parapharyngodon stoliczkana sp. nov. (Nematoda: Pharyngodonidae), is described from the cecum of Laudakia stoliczkana (Agamidae) in China's Turpan-Hami Basin, marking the first documentation of intestinal helminths in this host. Specimens were analyzed via integrative ta...
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Elsevier
2025-08-01
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| Series: | International Journal for Parasitology: Parasites and Wildlife |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213224425000720 |
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| author | Tao Wang Xiaofei Yan Ziqi Jiang Jiayi Xu Yiyang Zhao Chong Liu Yi Ba |
| author_facet | Tao Wang Xiaofei Yan Ziqi Jiang Jiayi Xu Yiyang Zhao Chong Liu Yi Ba |
| author_sort | Tao Wang |
| collection | DOAJ |
| description | A new nematode species, Parapharyngodon stoliczkana sp. nov. (Nematoda: Pharyngodonidae), is described from the cecum of Laudakia stoliczkana (Agamidae) in China's Turpan-Hami Basin, marking the first documentation of intestinal helminths in this host. Specimens were analyzed via integrative taxonomy, combining morphological (light and scanning electron microscopy) and molecular approaches (18S, 28S rRNA and COI genes). Males exhibited four labial papillae, three pairs of caudal papillae, a single spicule (67.16–77.82 μm), and lateral alae. Females possessed six labial papillae, operculated eggs (150–156 × 37–39 μm), and post-bulbar ovaries. Phylogenetic analyses of concatenated sequences (18S + 28S + COI) placed P. stoliczkana sp. nov. as a sister lineage to P. echinatus + P. micipsae (BPP = 1, BS = 99), with genetic divergences exceeding interspecific thresholds (COI p-distance: 36.34–49.53 %). Infection prevalence was 100 % (8 hosts), mean intensity 360.1 ± 41.2 helminths/host. Morphologically, the species differs from congeners in caudal papillation, spicule length, and ovarian positioning. This study resolves taxonomic ambiguities in Parapharyngodon, provides diagnostic keys, and establishes foundational molecular data for future studies on reptile-parasite coevolution in arid ecosystems. |
| format | Article |
| id | doaj-art-85c7428eff8b4cfbad4be396bca61d19 |
| institution | Kabale University |
| issn | 2213-2244 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal for Parasitology: Parasites and Wildlife |
| spelling | doaj-art-85c7428eff8b4cfbad4be396bca61d192025-08-20T03:44:58ZengElsevierInternational Journal for Parasitology: Parasites and Wildlife2213-22442025-08-012710110710.1016/j.ijppaw.2025.101107New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, ChinaTao Wang0Xiaofei Yan1Ziqi Jiang2Jiayi Xu3Yiyang Zhao4Chong Liu5Yi Ba6Xinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, ChinaXinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, China; Corresponding author.Xinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, ChinaXinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, ChinaCollege of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, ChinaXinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, ChinaXinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, ChinaA new nematode species, Parapharyngodon stoliczkana sp. nov. (Nematoda: Pharyngodonidae), is described from the cecum of Laudakia stoliczkana (Agamidae) in China's Turpan-Hami Basin, marking the first documentation of intestinal helminths in this host. Specimens were analyzed via integrative taxonomy, combining morphological (light and scanning electron microscopy) and molecular approaches (18S, 28S rRNA and COI genes). Males exhibited four labial papillae, three pairs of caudal papillae, a single spicule (67.16–77.82 μm), and lateral alae. Females possessed six labial papillae, operculated eggs (150–156 × 37–39 μm), and post-bulbar ovaries. Phylogenetic analyses of concatenated sequences (18S + 28S + COI) placed P. stoliczkana sp. nov. as a sister lineage to P. echinatus + P. micipsae (BPP = 1, BS = 99), with genetic divergences exceeding interspecific thresholds (COI p-distance: 36.34–49.53 %). Infection prevalence was 100 % (8 hosts), mean intensity 360.1 ± 41.2 helminths/host. Morphologically, the species differs from congeners in caudal papillation, spicule length, and ovarian positioning. This study resolves taxonomic ambiguities in Parapharyngodon, provides diagnostic keys, and establishes foundational molecular data for future studies on reptile-parasite coevolution in arid ecosystems.http://www.sciencedirect.com/science/article/pii/S2213224425000720Laudakia stoliczkanaParasitePharyngodonidaeNew speciesTurpan-Hami Basin |
| spellingShingle | Tao Wang Xiaofei Yan Ziqi Jiang Jiayi Xu Yiyang Zhao Chong Liu Yi Ba New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China International Journal for Parasitology: Parasites and Wildlife Laudakia stoliczkana Parasite Pharyngodonidae New species Turpan-Hami Basin |
| title | New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China |
| title_full | New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China |
| title_fullStr | New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China |
| title_full_unstemmed | New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China |
| title_short | New species of Parapharyngodon (Nematoda: Pharyngodonidae) parasite of Laudakia stoliczkana (Lacertilia: Agamidae) from Turpan-Hami Basin, China |
| title_sort | new species of parapharyngodon nematoda pharyngodonidae parasite of laudakia stoliczkana lacertilia agamidae from turpan hami basin china |
| topic | Laudakia stoliczkana Parasite Pharyngodonidae New species Turpan-Hami Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2213224425000720 |
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