Population differentiation and genetic diversity of endangered
            <i>Brachymystax tsinlingensis</i>
            Li between Yangtze River and Yellow River in China based on mtDNA

Shao, Jian; Xiong, Dongmei; Chu, Zhipeng; Wu, Jin‐Ming; Du, Hao; Wang, Feng; Wen, Shaoqing; Wei, Qiwei

doi:10.1080/24701394.2019.1572130

Cited by 3 publications

(6 citation statements)

References 29 publications

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“…The AMOVA indicated that geographic structuring and the percentage of variation were the lowest among lineages and the highest between populations. Thus, this pattern corresponds to the high genetic differentiation among populations of R. lagowskii, which is similar to results obtained in another amphibian and fish species in this region owing to the lower dispersal ability with the restricted gene flow and high differentiation (Blasco-Costa et al, 2012;Hardouin et al, 2018;Meng et al, 2014;Shao et al, 2019;Yu et al, 2014).…”

Section: The Geological Barrier Drove the Differentiation And Phyloge...supporting

confidence: 86%

“…tsinlingensis , and populations with a star‐shaped haplotype network, such as that observed for R . lagowskii , are indicative of a classic postglacial expansion after a period of low effective population size, with rapid population growth enhancing the retention of new mutations, accumulating haplotype diversity, but lacking enough time to accumulate nucleotide diversity (Grant & Bowen, 1998; Hewitt, 1996; Liu et al, 2015; Shao et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…LGM (Hewitt, 1996;Rowe et al, 2004). The high altitude region in the Qinling Mountains was also affected by Taibai glaciation (0.019 Ma) (Shi, 2002); however, the genetic diversity of R. lagowskii did not show the significant latitude and altitude decreasing trend often observed with other mussel, fish, amphibian, and mammal species in the Qinling Mountains and other regions of China (Hardouin et al, 2018;Li et al, 2021;Liu et al, 2015Liu et al, , 2017Shao et al, 2019;Wang et al, 2012;Xue et al, 2017;Yu et al, 2014) evolution (Kimura, 1977;Yang & Bielawski, 2000). Our study also showed the mean dN/dS value was 0.028 for Cytb.…”

Section: Geographic Distance (Km)mentioning

confidence: 99%

“…The Qinling Mountains represent a natural boundary between the northern and southern regions of the country and separate the Chinese temperate and subtropical climatic zones (Ding et al, 2013), resulting in differentiated terrestrial and freshwater fauna (Li, 1981;Zhang, 2011). Meanwhile, the rapid uplift of these mountains and climatic oscillation were influenced by the Qinghai-Tibet Plateau movement from the Miocene to the Pleistocene and have played important roles in influencing the phylogeographical patterns of a variety of organisms, including parasite, amphibian, fish, and mammal species (Chen et al, 2020;Hardouin et al, 2018;He et al, 1992;Hu et al, 2021;Huang et al, 2017;Li et al, 2021;Liu et al, 2015;Meng et al, 2014;Shao et al, 2019;Shi, 2002;Wang et al, 2012Wang et al, , 2013Yu et al, 2014;Zhang & Fang, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Bowen, 1998;Hewitt, 1996;Liu et al, 2015;Shao et al, 2019).TA B L E 4Note: Significant level *p < .05, **p < .01.Abbreviations: h, haplotype diversity; HRI, Harpending's raggedness index; Mya, million years ago; SSD, sum of squared deviation; t, beginning time of expansion; tau, expansion parameter; π, nucleotide diversity.…”

mentioning

confidence: 99%

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The phylogeographical pattern of the Amur minnow Rhynchocypris lagowskii (Cypriniformes: Cyprinidae) in the Qinling Mountains

Chen

2022

Ecology and Evolution

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In this study, the phylogeographical pattern of the Amur minnow (Rhynchocypris lagowskii) widely distributed in the cold freshwaters of the Qinling Mountains was examined. A total of 464 specimens from 48 localities were sequenced at a 540bp region of the mitochondrial cytochrome b (Cytb) gene, and 69 haplotypes were obtained. The mean ratio of the number of synonymous and nonsynonymous substitutions per site (dN/dS) was 0.028 and indicated purifying selection. Haplotype diversity (h) and nucleotide diversity (π) of natural populations of R. lagowskii varied widely between distinct localities. Phylogenetic trees based on Bayesian inference (BI), maximum likelihood (ML), and maximum parsimony (MP) methods, and network analysis showed five well-differentiated lineages, but these did not completely correspond to localities and geographic distribution. Meanwhile, analysis of molecular variances (AMOVA) indicated the highest proportion of genetic variation was attributed to the differentiation between populations rather than by our defined lineages.In addition, there was no significant correlation between the pairwise Fst values and geographic distance (p > .05). Based on the molecular clock calibration, the time to the most recent common ancestor (TMRCA) was estimated to have emerged from the Late Miocene to the Early Pleistocene. Finally, the results of demographic history based on the neutrality test, mismatch distribution, and Bayesian skyline plot (BSP) analyses showed that collectively, the populations were stable during the Pleistocene while one lineage (lineage E) probably underwent a slight contraction during the Middle Pleistocene and a rapid expansion from the Middle to the Late Pleistocene.Therefore, the study suggests the current phylogeographical pattern of R. lagowskii was likely shaped by geological events that led to vicariance followed by dispersal and secondary contact, river capture, and climatic oscillation during the Late Miocene to the Early Pleistocene in the Qinling Mountains.

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Section: The Geological Barrier Drove the Differentiation And Phyloge...supporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Section: Geographic Distance (Km)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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The phylogeographical pattern of the Amur minnow Rhynchocypris lagowskii (Cypriniformes: Cyprinidae) in the Qinling Mountains

Chen

2022

Ecology and Evolution

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High genetic differentiation in the endemic and endangered freshwater fish Achondrostoma salmantinum Doadrio and Elvira, 2007 from Spain, as revealed by mitochondrial and SNP markers

2021

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Intestinal Tissue, Digestive Enzyme, and Antioxidant Enzyme Activities in the Early Development Stage of Endangered Brachymystax tsinlingensis

Song,

Wang,

Lin

et al. 2024

Animals

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This work explores the digestive system characteristics of Brachymystax tsinlingensis during early developmental stages and aims to solve the problem of high lethality of fry during the transgression period, which is crucial for the artificial propagation and population conservation of endangered fishes. This study was carried out on intestinal tissue, digestive enzymes, and antioxidant enzyme activities in the early development stage of Brachymystax tsinlingensis. Ten random samples during endogenous nutrition (7, 10, and 11 days after hatching), mixed nutrition (13 and 19 DAH), and exogenous nutrition (31, 33, 39, 45, and 73 DAH) were collected by histological and biochemical analysis methods. The results showed that the intestine of Brachymystax tsinlingensis already has four layers initially at 7 DAH, and the intestinal gland tissue is evident at 73 DAH. The contents of total protein (TP) and the activities of lipase (LPS) and trypsin (TPS) were maximal at 39 DAH, and the activities were 3.20 ± 0.26 mg/mL, 2.52 ± 0.69 U/g, and 2717.45 ± 295.26 U/mg, respectively. Catalase (CAT) and glutathione peroxidase (GSH-PX) activities both showed the lowest values at 39 DAH, which were 0.57 ± 0.11 U/mg and 3.35 ± 0.94 U/mg, respectively. The activity of amylase (AMS) and the content of malonaldehyde (MDA) increased, and the highest values were reached at 45 DAH (1.32 ± 0.41 U/mg) and 73 DAH (1.29 ± 0.43 nmoL/mg), respectively. Superoxide dismutase (SOD) and GSH-PX activities both showed a peak value at 7 DAH (126.58 ± 20.13 U/mg and 6.47 ± 1.86 U/mg). Overall, the changes in intestinal tissue, digestive enzymes, and antioxidant enzyme activities at 39 DAH of Brachymystax tsinlingensis are inseparable from different vegetative stages during the developmental period, and these results can provide a reference for the proliferation and cultivation of Brachymystax tsinlingensis resources.

show abstract

Population differentiation and genetic diversity of endangered Brachymystax tsinlingensis Li between Yangtze River and Yellow River in China based on mtDNA

Cited by 3 publications

References 29 publications

The phylogeographical pattern of the Amur minnow Rhynchocypris lagowskii (Cypriniformes: Cyprinidae) in the Qinling Mountains

The phylogeographical pattern of the Amur minnow Rhynchocypris lagowskii (Cypriniformes: Cyprinidae) in the Qinling Mountains

High genetic differentiation in the endemic and endangered freshwater fish Achondrostoma salmantinum Doadrio and Elvira, 2007 from Spain, as revealed by mitochondrial and SNP markers

Intestinal Tissue, Digestive Enzyme, and Antioxidant Enzyme Activities in the Early Development Stage of Endangered Brachymystax tsinlingensis

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