Dataset Information

Balitoraanlongensis, the first cavefish species of the genus Balitora (Teleostei, Balitoridae) from Guizhou Province, southwest China.

ABSTRACT: This work describes a new species, Balitoraanlongensissp. nov., collected from a cave at Xinglong Town, Anlong County, Guzihou, China. Phylogenetic trees reconstructed based on two mitochondrial and three nuclear genes show that the new species represents an independent evolutionary lineage with large genetic differences, 7.1%-12.0% in mitochondrial gene cytochrome b and 9.2%-12.1% in cytochrome oxidase subunit 1, from congeners. Morphologically, the new species can be distinguished from the 18 species currently assigned to the genus Balitora by a combination of characters, most clearly by having two pairs of maxillary barbels; 8½ branched dorsal-fin rays; 5½ branched anal-fin rays; pectoral fin not reaching pelvic fin origin; dorsal-fin origin in front of pelvic fin origin; eye small (eye diameter approximately equal to outer maxillary barbel length); and fins lacking pigment in live fish. The new species represents the first record of Balitora inhabiting caves in China and increases the number of species in the genus Balitora in its present concept from 18 to 19. The study suggests that more evidence is needed to further clarify the taxonomic composition of the genus Balitora.

SUBMITTER: Luo T

PROVIDER: S-EPMC10698868 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Balitoraanlongensis, the first cavefish species of the genus Balitora (Teleostei, Balitoridae) from Guizhou Province, southwest China.

Luo Tao T Chen Zhi-Xia ZX Zhao Xin-Rui XR Yu Jing J Lan Chang-Ting CT Zhou Jia-Jun JJ Xiao Ning N Zhou Jiang J

ZooKeys 20231128

This work describes a new species, Balitoraanlongensissp. nov., collected from a cave at Xinglong Town, Anlong County, Guzihou, China. Phylogenetic trees reconstructed based on two mitochondrial and three nuclear genes show that the new species represents an independent evolutionary lineage with large genetic differences, 7.1%-12.0% in mitochondrial gene cytochrome b and 9.2%-12.1% in cytochrome oxidase subunit 1, from congeners. Morphologically, the new species can be disti ...[more]

PMID: 38074905

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Project description:Two new species of the genus Triplophysa from southwestern Guizhou Province, China, are described. These are Triplophysaziyunensis Wu, Luo, Xiao & Zhou, sp. nov. and Triplophysayaluwang Lan, Liu, Zhou & Zhou, sp. nov. from Maoying Town, Ziyun County, Guizhou Province, China. Triplophysaziyunensis Wu, Luo, Xiao & Zhou, sp. nov. is distinguished from other hypogean species of the genus Triplophysa by having a combination of the following characteristics: body naked, scaleless, pigmented markings on surface of body, except ventral; eyes reduced, diameter 2.4-4.9% of head length; pelvic-fin tip extending to anus; tip of pectoral fin not reaching pelvic fin origin; anterior and posterior nostrils closely set, with anterior nostril elongated to a barbel-like tip; tip of outrostral barbel extending backward, not reaching anterior margin of the eye; lateral line complete; posterior chamber of air bladder degenerated; and fin differences. Triplophysayaluwang Lan, Liu, Zhou & Zhou, sp. nov. is distinguished from other hypogean species of the genus Triplophysa by having a combination of the following characteristics: body naked, scaleless, with irregular pale and dark brownish brown markings, except ventrally; eyes reduced, diameter 4.6-6.1% of head length; pelvic-fin tip reaching anus; tip of pectoral fin not reaching to pelvic fin origin; anterior and posterior nostrils closely set, with anterior nostril elongated to a barbel-like tip; tip of outrostral barbel extending backward, not reaching to anterior margin of the eye; lateral line complete; posterior chamber of air bladder degenerated; and fin differences. Mitochondrial Cyt b revealed relatively small genetic differences, 1.4-2.0%, between the two new species and close relatives. Nuclear gene RAG1 indicated that the two new species possessed unique haplotypes with multiple linking mutations. This study emphasizes the importance of utilizing nuclear genes to identify new species in rapidly speciation cave species, with small genetic differences due to mitochondrial introgression occurring interspecies.

Dataset Information

Balitoraanlongensis, the first cavefish species of the genus Balitora (Teleostei, Balitoridae) from Guizhou Province, southwest China.

Publications

<i>Balitoraanlongensis</i>, the first cavefish species of the genus <i>Balitora</i> (Teleostei, Balitoridae) from Guizhou Province, southwest China.

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Dataset Information

Balitoraanlongensis, the first cavefish species of the genus Balitora (Teleostei, Balitoridae) from Guizhou Province, southwest China.

Publications

﻿<i>Balitoraanlongensis</i>, the first cavefish species of the genus <i>Balitora</i> (Teleostei, Balitoridae) from Guizhou Province, southwest China.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

<i>Balitoraanlongensis</i>, the first cavefish species of the genus <i>Balitora</i> (Teleostei, Balitoridae) from Guizhou Province, southwest China.