Paraqianlabeo lineatus, a new genus and species of labeonine fishes (Teleostei: Cyprinidae) from South China

Abstract

Paraqianlabeo, new genus, is described from the Chishui-He and Wu-Jiang rivers of the Yangtze River basin in Guizhou Province, South China. This new genus is distinguished from all other labeonine genera by a combination of morphological and molecular evidence. It is distinguished from all other Asian garrains by a unique oromandibular morphology; i.e., an arched, wide, rudimentary sucker formed by raised front and lateral margins of lower lip, postlabial groove and mental groove between middle and lateral lobes of lower lip chevron-shaped; anteroventral margin of rostral cap arched, thin and papillose; rostral cap not overlying upper lip, upper lip connected with lower lip around corners of mouth; well developed upper lip free from upper jaw; lower lip divided into two lateral fleshy lobes and one central plate, these two lateral fleshy lobes small and short, median lobe of lower lip large; anterior and anterolateral edges of upper and lower lip finely papillose; shallow, straight groove between lower lip and lower jaw; lower jaw bears thin, cornified cutting edge. Additionally, scales on mid-ventral region from pectoral fins to pelvic fins subcutaneous and half-hidden; dorsal fin with 3 simple and 7½-8 branched rays. Paraqianlabeo lineatus, new species, type species of this genus, has longitudinal dark stripe along side of body. Analyses of mitochondrial DNA data indicate that this new genus forms a highly diverged lineage within the Garraina group of Labeoninae.

Isolation and characterization of 21 polymorphic microsatellite markers for a new labeonine fish (Paraqianlabeo lineatus Zhao et al. 2014) using illumina paired-end sequencing

“…single nucleotide polymorphisms [SNPs) and microsatellites (SSRs)] development (e.g. Wang et al., ; Zeng et al., ; Li et al., ; Mccracken et al., ; Zhao et al., b; Igawa et al., ). Here, we present the development of 21 polymorphic microsatellite markers for P. lineatus based on the illumina paired‐end sequencing technology and further characterized using a sample from a wild population consisting of 36 individuals.…”

“…Paraqianlabeo lineatus is a newly described cyprinid fish species belonging to the subfamily Labeoninae (Zhao et al., ). Currently, it is only found in some tributary streams with clear water and sluggish flow along the Wu‐Jiang and Chishui‐He rivers of the upper Yangtze River basin in China (Zhao et al., ). With the global climate change and the intensification of human activities, its habitat has begun to be gradually destroyed.…”

Molecular systematics of the Labeonini inhabiting the karst regions in southwest China (Teleostei, Cypriniformes)

“…Hongshuia , Cophecheilus , Sinigarra , Stenorynchoacrum and Paraqianlabeo were described recently (Zhang et al 2008; Zhu et al 2011; Zhang and Zhou 2012; Huang et al 2014; Zhao et al 2014). The phylogenetic positions of Cophecheilus and Sinigarra have never been verified.…”

Complete mitochondrial genome of Guigarra cailaoensis Wang, Chen & Zheng, 2022 (Cypriniformes, Cyprinidae) and its phylogenetic implications

“…Previous research on the subfamily Labeoninae has predominantly focused on taxonomy, particularly the description of new genera and species, as well as molecular phylogenetics. In recent years, various new Labeoninae genera and species from the karst region of southwestern China have been described, including Sinigarra Zhang & Zhou, 2012, Paraqianlabeo Zhao, Sullivan, Zhang & Peng, 2014, Prolixicheilus Zheng, Chen & Yang, 2016, Zuojiangia Zheng, He, Yang & Wu, 2018, Lanlabeo Yao, He & Peng, 2018, and Guigarra Wang, Chen & Zheng, 2022 ( Zhang and Zhou 2012 ; Zhao et al 2014 ; Zheng et al 2016 , 2018 ; Yao et al 2018 ; Wang et al 2022 ), highlighting the rich species diversity in this subfamily. Furthermore, molecular phylogenetic studies have elucidated the phylogenetic relationships within the subfamily and validated the classification of genera ( Yang and Mayden 2010 ; Zheng et al 2010 , 2012 ; Yang et al 2012 ).…”