Journal Article

Do Chinese cavefish show intraspecific variability in morphological traits?

Lunghi, E. and Zhao, Y.

Record Number:
5158
Year:
2020
Journal:
Ecology and Evolution
Pages:
7723-7730
Volume:
10
Abstract:
Cavefishes represent one of the most bizarre and intriguing life forms inhabiting groundwater environments. One-third of the known cavefishes worldwide is endemic to China, and almost half of those belongs to a single genus, Sinocyclocheilus (Cypriniformes: Cyprinidae). Analyzing the morphometrics of three Sinocyclocheilus species, we aimed to assess whether variability among conspecific populations exists. We predict that populations inhabiting different subterranean habitats (shallow vs. deep) show divergences in specific morphological traits to better cope with the local ecological conditions. Our results showed that the populations showing bigger eyes and reduced humpback were those occurring close to the cave entrance (habitats with light and high food availability), while specimens with smaller eyes and increased humpback were collected from deeper groundwater areas (habitats laying in darkness with food scarcity). This explorative study paves the way for further researches aiming to collect novel data on Chinese cavefishes and highlights the usefulness of these species in evolutionary studies. K E Y W O R D S adaptation, cave biology, China, groundwater, stygofauna, subterranean environment
Times Cited:
2
Related Records:
Li, G. L. (1989)
On a new fish of the genus Sinocyclocheilus from Guangxi, China
Chen, Y.R. and Yang, J.X. (1993)
Species and origin of cave dwelling Sinocyclocheilus fishes
Chen, Y.R. and Yang, J.X. (1993)
A synopsis of cavefishes from China
Wang, D and Chen, YY (1998)
On the diagnosis of Sinocyclocheilus and the taxonomic position of its closely related genus Anchicyclocheilus (Cypriniformes: Cyprinidae: Barbinae)
Xiao, H, Zhang, R, Feng, J, Ou, Y., M, Li, W, Chen, S and Zan, R (2002)
Nuclear DNA content and ploidy of seventeen species of fishes in Sinocyclocheilus
Li, J., Cai, Y. and Clarke, A. (2006)
A new species of troglobitic freshwater prawn of the genus Macrobrachium from southern China (Crustacea: Decapoda: Palaemonidae)
Zhao, YH, Lan, JH and Zhang, CG (2009)
A new cavefish species, Sinocyclocheilus brevibarbatus (Teleostei: Cypriniformes: Cyprinidae), from Guangxi, China
Pan, Y., Hou, Z. and Li, S. (2010)
Description of a new Macrobrachium species (Crustacea: Decapoda: Caridea: Palaemonidae) from a cave in Guangxi, with a synopsis of the stygobiotic Decapoda in China.
Zhang, X.-Y., Huang, Z.-Q., Ning, T., Xiang, X.H. Li, C.-Q. Chen, S.-Y. and Xiao, H. (2018)
Microscopic and submicroscopic gradient variation of olfactory systems among six Sinocyclocheilus species living in different environments
Chen, H., Li, C., Liu, T., Chen, S. and Xiao, H. (2019)
A metagenomic study of intestinal microbial diversity in relation to feeding habits of surface and cave-dwelling Sinocyclocheilus species
Chen, H., Li, C., Liu, T., Chen, S. and Xiao, H. (2019)
A metagenomic study of intestinal microbial diversity in relation to feeding habits of surface and cave-dwelling Sinocyclocheilus species
Lunghi, E., Zhao, Y., Sun, X. and Zhao, Y. (2019)
Morphometrics of eight Chinese cavefish species
Lunghi, E., Zhao, Y., Sun, X. and Zhao, Y. (2019)
Morphometrics of eight Chinese cavefish species
Li, P. and Yang, J. (2019)
Complete mitochondrial genome and phylogenetic analysis of Sinocyclocheilus microphthalmus (Cypriniformes: Cyprinidae)
Xu, G. Li, J., Huang, T., Gu, W., Cui, L., Zhang, Y. and Wang, B. (2019)
The complete mitochondrial genome of Sinocyclocheilus qujingensis (Cyprinoidea: Cyprinidae)
Xu, G., Li, J., Huang, T., Gu, W., Cui, L., Zhang, Y. and Wang, B. (2019)
The complete mitochondrial genome of Sinocyclocheilus huizeensis (Cypriniformes: Cyprinidae)
Mao, T.-R., Liu, Y.-W., Meegaskumbura, M., Yang, J., Ellepola, G., Senevirathne, G., Fu, C.-H., Gross, J.B. and Pie, M.R. (2020)
Evolution in Sinocyclocheilus cavefish is marked by rate shifts, reversals and origin of novel traits
Li, C., Chen, H., Zhao, Y., Chen, S. and Xiao, H. (2020)
Comparative transcriptomics reveals the molecular genetic basis of pigmentation loss in Sinocyclocheilus cavefishes
Lunghi, E. and Zhao, Y. (2020)
Do Chinese cavefish show intraspecific variability in morphological traits?
Lunghi, E. and Zhao, Y. (2020)
Do Chinese cavefish show intraspecific variability in morphological traits?
Zhao, Y., Zhang, C. and Proudlove, G.S. (2021)
Fishes of the Genus Sinocyclocheilus (Cypriniformes: Cyprinidae) in China. Systematics, biology, biogeography and cave adaptation
Zhao, Y., Zhang, C. and Proudlove, G.S. (2021)
Fishes of the Genus Sinocyclocheilus (Cypriniformes: Cyprinidae) in China. Systematics, biology, biogeography and cave adaptation
Wen, H., Tao, L., Wang, Y., Wang, S., Liu, T., Xiao, N. and Zhou, J. (2022)
Molecular phylogeny and historical biogeography of the cave fish genus Sinocyclocheilus (Cypriniformes: Cyprinidae) in southwest China