Published February 21, 2025
| Version v1
Journal article
Open
A new species of the rib-degenerated loach, genus Protocobitis (Cypriniformes, Cobitidae), from Guangxi, China
Authors/Creators
- 1. Guangxi Normal University, Guilin, China
- 2. Guangxi University, Nanning, China
- 3. Institute of Zoology, Chinese Academy of Sciences, Beijing, China|Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
- 4. Zhejiang Forestry Survey Planning and Design Company Limited, Hangzhou, China|Zhejiang Forest Resource Monitoring Center, Hangzhou, China
Description
A new species of the genus Protocobitis is described based on morphological comparisons and molecular analyses from specimens of a subterranean tributary of the Hongshui River, Lingyun County, Baise City, and a cave in Jinya Township, Fengshan County, Hechi City, Guangxi, China. Both morphological and molecular data support the validity of Protocobitis longibarba sp. nov. The new species can be distinguished from congeners by the following combination of characteristics: whole body except for head and area between pectoral-fin and pelvic-fin origin sparsely covered with minute scales; barbels elongate; five or six branched pectoral-fin rays and four branched pelvic-fin rays; vertebrae 4+42. Maximum-likelihood and Bayesian-inference phylogenetic trees exhibited congruent topological structures, exhibiting high node support for the monophyly of Protocobitis longibarba (BPP = 1; BS = 100), which was clustered with the other congeners.
Files
ZK_article_131341.pdf
System files
(89.0 kB)
| Name | Size | |
|---|---|---|
|
md5:547588bb2fe2b85a72266f97a3cfa2e4
|
89.0 kB | Download |
Linked records
Additional details
References
- Chen YR, Yang JX, Zhu ZG (1994) A new fish of the genus Sinocyclocheilus from Yunnan with comments on its characteristic adapation (Cypriniformes: Cyprinidae). Acta Zootaxonomica Sinica 19(2): 246–253. [In Chinese]
- Fan C, Wang M, Wang JJ, Luo T, Zhou JJ, Xiao N, Zhou J (2024) Sinocyclocheilus xiejiahuai (Cypriniformes, Cyprinidae), a new cave fish with extremely small population size from western Guizhou, China. ZooKeys 1214: 119–141. https://doi.org/10.3897/zookeys.1214.127629
- Jeffery WR (2001) Cavefish as a Model System in Evolutionary Developmental Biology. Developmental Biology 231(1): 1–12. https://doi.org/10.1006/dbio.2000.0121
- Jeffery WR (2009) Regressive evolution in Astyanax cavefish. Annual Review of Genetics 43: 25–47. https://doi.org/10.1146/annurev-genet-102108-134216
- Kumar S, Stecher G, Tamura K (2016) MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Molecular Biology and Evolution 33(7): 1870–1874. https://doi.org/10.1093/molbev/msw054
- Lan JH, Gan X, Wu TJ, Yang J (2013) Cave Fishes of Guangxi. Science Press, Beijing. [In Chinese]
- Liang XF, Cao L, Zhang CG (2011) Molecular phylogeny of the Sinocyclocheilus (Cypriniformes: Cyprinidae) fishes in northwest part of Guangxi, China. Environmental Biology of Fishes 92: 371–379. https://doi.org/10.1007/s10641-011-9847-6
- Librado P, Rozas J (2009) DnaSP v5: a software for comprehensive analysis of DNA polymorphism data. Bioinformatics 25: 1451–1452. https://doi.org/10.1093/bioinformatics/btp187
- Longley LG (1993) Morphological adaptations of the Texas blind catfishes Trogloglanis pattersoni and Satan eurystomus (Siluriformes: Ictaluridae) to their underground environment. Copeia 1993(4): 976–986. https://doi.org/10.2307/1447075
- Miller MA, Pfeiffer W, Schwartz T (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. In: Proceedings of the Gateway Computing 349 Environments Workshop (GCE), 14 Nov. 2010, New Orleans, LA, 1–8. https://doi.org/10.1109/GCE.2010.5676129
- Myhre F, Klepaker T (2009) Body armour and lateral-plate reduction in freshwater three-spined stickleback Gasterosteus aculeatus: adaptations to a different buoyancy regime? Journal of Fish Biology 75: 2062–2074. https://doi.org/10.1111/j.1095-8649.2009.02404.x
- Rambaut A (2009) FigTree. Version 1.4.4. http://tree.bio.ed.ac.uk/software/figtree
- Ronquist F, Teslenko M, van der Mark P, Ayres DL, Darling A, Höhna S, Larget B, Liu L, Suchard MA, Huelsenbeck JP (2012) MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology 61(3): 539–542. https://doi.org/10.1093/sysbio/sys029
- Stamatakis A (2014) RAxML Version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30(9): 1312–1313. https://doi.org/10.1093/bioinformatics/btu033
- Yang JX, Chen YR, Lan JH (1994) Protocobitis typhlops, a new genus and species of cave loach from China (Cypriniformes: Cobitidae). Ichthyological Exploration of Freshwaters 5: 91–96.
- Zhao YH, Zhang CG (2006) Cavefishes: concept, diversity and research progress. Biodiversity Science 5: 451–460. [In Chinese] https://doi.org/10.1360/biodiv.050226
- Zhao Y, Zhang C (2009) An Endemic Cavefish Genus Sinocyclocheilus in China—Species Diversity, Systematics and Zoogeography (Cypriniformes: Cyprinidae). Science press, Beijing. [In Chinese]
- Zhou JJ, Qin ZX, Du LN, Wu HY (2024) A new species of the blind cave loach genus Protocobitis (Cypriniformes: Cobitidae), Protocobitis longicostatus sp. nov., from Guangxi, China. Zoological Science 41(2): 210–215. https://doi.org/10.2108/zs230104
- Zhu Y, Lv YJ, Yang JX, Zhang S (2008) A new blind underground species of the genus Protocobitis (Cobitidae) from Guangxi, China. Zoological Science 29: 452–454. https://doi.org/10.3724/SP.J.1141.2008.00452