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Tang Y, Ma W, Chen X, Nie G, Zhou C. Four new complete mitochondrial genomes of Gobioninae fishes (Teleostei: Cyprinidae) and their phylogenetic implications. PeerJ 2024; 12:e16632. [PMID: 38259668 PMCID: PMC10802160 DOI: 10.7717/peerj.16632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/17/2023] [Indexed: 01/24/2024] Open
Abstract
The subfamily Gobioninae is one of the most diverse fish groups within Cyprinidae. Their taxonomy and phylogenetic relationships are not completely resolved. In this study, the complete mitochondrial genomes (mitogenome) of four Gobioninae species (Microphysogobio elongatus, Microphysogobio chinssuensis, Gobio rivuloides and Rhinogobio nasutus) were sequenced and compared. The mitogenomes of four species ranges from 16603 bp to 16609 bp in length, consisting of 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes, and a control region. Most PCGs had significant codon usage bias. Except for the tRNASer (GCT), all the nucleotide substitutions of tRNA loops higher than the stems could fold into a stable secondary structure. The nucleotide compositions of Gobioninae mitogenome were biased toward A/T, and NAD4 was subjected to low purification selection and had a faster evolution rate among 13 PCGs. Bayesian inference and maximum likelihood phylogenetic analyses showed the consistent results. The four sequenced species clustered together with their congener species. However, more samples and mitogenome data are needed to untangle the phylogenetic relationships among genera Microphysogobio, Romanogobio, Hugobio, Biwia and Platysmacheilus.
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Affiliation(s)
- Yongtao Tang
- College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang, Henan province, The People’s Republic of China
| | - Wenwen Ma
- College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang, Henan province, The People’s Republic of China
| | - Xin Chen
- College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang, Henan province, The People’s Republic of China
| | - Guoxing Nie
- College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang, Henan province, The People’s Republic of China
| | - Chuanjiang Zhou
- College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang, Henan province, The People’s Republic of China
- College of Life Sciences, Henan Normal University, Xinxiang, Henan Province, China
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Ni X, Chen Y, Deng G, Fu C. Pleistocene Landscape Dynamics Drives Lineage Divergence of a Temperate Freshwater Fish Gobio rivuloides in Coastal Drainages of Northern China. Genes (Basel) 2023; 14:2146. [PMID: 38136969 PMCID: PMC10743038 DOI: 10.3390/genes14122146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 12/24/2023] Open
Abstract
Understanding historical processes underlying lineage distribution patterns is a primary goal of phylogeography. We selected Gobio rivuloides (Cypriniformes: Gobionidae) as a model to improve our knowledge about how intraspecific genetic divergence of freshwater fishes arises in coastal drainages of northern China via statistical analysis using cytochrome b gene. The time-calibrated phylogeny of G. rivuloides showed the divergence of two major lineages (I and II) at ~0.98 Ma (million years ago). Lineage I can be divided into two sub-lineages (I-A and I-B) with a divergence time of ~0.83 Ma. Sub-lineage I-A inhabits the Amur River, and sub-lineage I-B lives in the Luan River and Liao River. Lineage II is distributed in the Yellow River and Hai River, with close genetic relationships between the two drainages, and can be split into two sub-lineages (II-C and II-D) with a divergence time of ~0.60 Ma. Our findings indicate that the splitting of lineages and sub-lineages could be attributed to geographic isolation caused by the formation of the Bohai Sea, river capture, and the episodic hydrologic closing of a paleolake during the late Lower-Middle Pleistocene. It is also the first report we know of displaying a clear phylogeographic break for freshwater fishes across coastal drainages in northern China.
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Affiliation(s)
| | | | | | - Cuizhang Fu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of the Yangtze River Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai 200438, China; (X.N.); (Y.C.); (G.D.)
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Mu X, Yang Y, Sun J, Yi liu, Xu M, Shao C, Chu KH, Li W, Liu C, Gu D, Fang M, Zhang C, Liu F, Song H, Wang X, Chen J, Ma KY. FishPIE: a universal phylogenetically informative exon markers set for ray-finned fishes. iScience 2022; 25:105025. [PMID: 36105587 PMCID: PMC9464953 DOI: 10.1016/j.isci.2022.105025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 07/11/2022] [Accepted: 08/23/2022] [Indexed: 11/25/2022] Open
Abstract
Understanding the evolutionary history of the highly diverse ray-finned fishes has been challenging, and the development of more universal primers for phylogenetic analyses may help overcoming these challenges. We developed FishPIE, a nested PCR primer set of 82 phylogenetically informative exon markers, and tested it on 203 species from 31 orders of Actinopterygii. We combined orthologous sequences of the FishPIE markers obtained from published genomes and transcriptomes and constructed the phylogeny of 710 species belonging to 190 families and 60 orders. The resulting phylogenies had topologies comparable to previous phylogenomic studies. We demonstrated that the FishPIE markers could address phylogenetic questions across broad taxonomic levels. By incorporating the newly sequenced taxa, we were able to shed new light on the phylogeny of the highly diverse Cypriniformes. Thus, FishPIE holds great promise for generating genetic data for broad taxonomic groups and accelerating our understanding of the fish tree of life. FishPIE is a nested PCR primer set of 82 markers for fish phylogenetic analysis The markers can be broadly applied to all orders of ray-finned fishes Their phylogenetic performance is comparable to that of genomic analyses
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Zhang Z, Li S, Zhang J, Song W, Yang J, Mu J. The complete mitochondrial genome of an endangered minnow Aphyocypris lini (Cypriniformes: Xenocyprididae): genome characterization and phylogenetic consideration. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00811-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Areces-Berazain F, Wang Y, Hinsinger DD, Strijk JS. Plastome comparative genomics in maples resolves the infrageneric backbone relationships. PeerJ 2020; 8:e9483. [PMID: 32742784 PMCID: PMC7365138 DOI: 10.7717/peerj.9483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 06/15/2020] [Indexed: 12/28/2022] Open
Abstract
Maples (Acer) are among the most diverse and ecologically important tree genera of the north-temperate forests. They include species highly valued as ornamentals and as a source of timber and sugar products. Previous phylogenetic studies employing plastid markers have not provided sufficient resolution, particularly at deeper nodes, leaving the backbone of the maple plastid tree essentially unresolved. We provide the plastid genome sequences of 16 species of maples spanning the sectional diversity of the genus and explore the utility of these sequences as a source of information for genetic and phylogenetic studies in this group. We analyzed the distribution of different types of repeated sequences and the pattern of codon usage, and identified variable regions across the plastome. Maximum likelihood and Bayesian analyses using two partitioning strategies were performed with these and previously published sequences. The plastomes ranged in size from 155,212 to 157,023 bp and had structure and gene content except for Acer palmatum (sect. Palmata), which had longer inverted repeats and an additional copy of the rps19 gene. Two genes, rps2 and rpl22, were found to be truncated at different positions and might be non-functional in several species. Most dispersed repeats, SSRs, and overall variation were detected in the non-coding sequences of the LSC and SSC regions. Fifteen loci, most of which have not been used before in the genus, were identified as the most variable and potentially useful as molecular markers for barcoding and genetic studies. Both ML and Bayesian analyses produced similar results irrespective of the partitioning strategy used. The plastome-based tree largely supported the topology inferred in previous studies using cp markers while providing resolution to the backbone relationships but was highly incongruous with a recently published nuclear tree presenting an opportunity for further research to investigate the causes of discordance, and particularly the role of hybridization in the diversification of the genus. Plastome sequences are valuable tools to resolve deep-level relationships within Acer. The variable loci and SSRs identified in this study will facilitate the development of markers for ecological and evolutionary studies in the genus. This study underscores the potential of plastid genome sequences to improve our understanding of the evolution of maples.
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Affiliation(s)
- Fabiola Areces-Berazain
- Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, Guangxi, China
- Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, Luang Prabang, Laos
| | - Yixi Wang
- Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - Damien D. Hinsinger
- Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, Luang Prabang, Laos
- Génomique Métabolique, Genoscope, Institut de Biologie François Jacob, Commisariat à l’Énergie Atomique (CEA), CNRS, Université Évry, Université Paris-Saclay, Évry, France
| | - Joeri S. Strijk
- Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, Guangxi, China
- Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, Luang Prabang, Laos
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Forestry, Guangxi University, Nanning, Guangxi, China
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Phylogenetic relationships of Cypriniformes and plasticity of pharyngeal teeth in the adaptive radiation of cyprinids. SCIENCE CHINA-LIFE SCIENCES 2019; 62:553-565. [DOI: 10.1007/s11427-019-9480-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/01/2018] [Indexed: 12/23/2022]
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Stout CC, Tan M, Lemmon AR, Lemmon EM, Armbruster JW. Resolving Cypriniformes relationships using an anchored enrichment approach. BMC Evol Biol 2016; 16:244. [PMID: 27829363 PMCID: PMC5103605 DOI: 10.1186/s12862-016-0819-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/28/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cypriniformes (minnows, carps, loaches, and suckers) is the largest group of freshwater fishes in the world (~4300 described species). Despite much attention, previous attempts to elucidate relationships using molecular and morphological characters have been incongruent. In this study we present the first phylogenomic analysis using anchored hybrid enrichment for 172 taxa to represent the order (plus three out-group taxa), which is the largest dataset for the order to date (219 loci, 315,288 bp, average locus length of 1011 bp). RESULTS Concatenation analysis establishes a robust tree with 97 % of nodes at 100 % bootstrap support. Species tree analysis was highly congruent with the concatenation analysis with only two major differences: monophyly of Cobitoidei and placement of Danionidae. CONCLUSIONS Most major clades obtained in prior molecular studies were validated as monophyletic, and we provide robust resolution for the relationships among these clades for the first time. These relationships can be used as a framework for addressing a variety of evolutionary questions (e.g. phylogeography, polyploidization, diversification, trait evolution, comparative genomics) for which Cypriniformes is ideally suited.
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Affiliation(s)
- Carla C. Stout
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
| | - Milton Tan
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
| | - Alan R. Lemmon
- Department of Scientific Computing, Florida State University, Tallahassee, FL 32306 USA
| | - Emily Moriarty Lemmon
- Department of Biological Sciences, Florida State University, Tallahassee, FL 32306 USA
| | - Jonathan W. Armbruster
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
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Ahnelt H, Herdina AN, Metscher BD. Unusual pharyngeal dentition in the African Chedrin fishes (Teleostei: Cyprinindae): Significance for phylogeny and character evolution. ZOOL ANZ 2015. [DOI: 10.1016/j.jcz.2015.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Partitioning is a commonly used method in phylogenetics that aims to accommodate variation in substitution patterns among sites. Despite its popularity, there have been few systematic studies of its effects on phylogenetic inference, and there have been no studies that compare the effects of different approaches to partitioning across many empirical data sets. In this study, we applied four commonly used approaches to partitioning to each of 34 empirical data sets, and then compared the resulting tree topologies, branch-lengths, and bootstrap support estimated using each approach. We find that the choice of partitioning scheme often affects tree topology, particularly when partitioning is omitted. Most notably, we find occasional instances where the use of a suboptimal partitioning scheme produces highly supported but incorrect nodes in the tree. Branch-lengths and bootstrap support are also affected by the choice of partitioning scheme, sometimes dramatically so. We discuss the reasons for these effects and make some suggestions for best practice.
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Affiliation(s)
- David Kainer
- Division of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Robert Lanfear
- Division of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Canberra, ACT, Australia National Evolutionary Synthesis Center, Durham, NC Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
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Kartavtsev YP, Rozhkovan KV, Masalkova NA. Phylogeny based on two mtDNA genes (Co-1, Cyt-B) among Sculpins (Scorpaeniformes, Cottidae) and some other scorpionfish in the Russian Far East. Mitochondrial DNA A DNA Mapp Seq Anal 2014; 27:2225-40. [PMID: 25431818 DOI: 10.3109/19401736.2014.984164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The average scores of p-distances at Co-1 and Cyt-b genes revealed a pattern of increased nucleotide diversity for four categories: (1) intraspecies, (2) intragenus, (3) intrafamily, and (4) intraorder. Scores for Co-1 genes were following: (1) 0.24 ± 0.19% (n = 66), (2) 1.54 ± 0.27% (n = 33), (3) 11.57 ± 0.24% (n = 42), and (4) 12.91 ± 0.16% (n = 102); while for Cyt-b genes, those values were (1) 1.92 ± 0.55% (n = 24), (2) 8.19 ± 0.09% (n = 812), (3) 15.42 ± 0.07% (n = 1573), and (4) 23.13 ± 0.19% (n = 211). A concordant increase in the distance score, as the rank of taxa grows, with the minimum at intraspecies level substantiates the concept that speciation in the order Scorpaeniformes mostly follows a geographic mode. Phylogenetic trees for 40 sequences of scorpionfish and four other fishes belonging to Actinopterigii were developed using Co-1 gene and four different analytical approaches: Bayesian, ML, MP, and NJ. Resolution of the Co-1 trees for the three genera that included different species branches was quite distinct in all approaches. Intrafamily branching for Cyt-b in Cottidae was also supported by all four kinds of trees but only for less numerous genera in the research.
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Affiliation(s)
- Yuri Phedorovich Kartavtsev
- a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation .,b Far Eastern Federal University, Vladivostok, Russian Federation , and
| | | | - Natalya A Masalkova
- a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation
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Chang CH, Li F, Shao KT, Lin YS, Morosawa T, Kim S, Koo H, Kim W, Lee JS, He S, Smith C, Reichard M, Miya M, Sado T, Uehara K, Lavoué S, Chen WJ, Mayden RL. Phylogenetic relationships of Acheilognathidae (Cypriniformes: Cyprinoidea) as revealed from evidence of both nuclear and mitochondrial gene sequence variation: evidence for necessary taxonomic revision in the family and the identification of cryptic species. Mol Phylogenet Evol 2014; 81:182-94. [PMID: 25238947 DOI: 10.1016/j.ympev.2014.08.026] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 08/28/2014] [Accepted: 08/29/2014] [Indexed: 10/24/2022]
Abstract
Bitterlings are relatively small cypriniform species and extremely interesting evolutionarily due to their unusual reproductive behaviors and their coevolutionary relationships with freshwater mussels. As a group, they have attracted a great deal of attention in biological studies. Understanding the origin and evolution of their mating system demands a well-corroborated hypothesis of their evolutionary relationships. In this study, we provide the most comprehensive phylogenetic reconstruction of species relationships of the group based on partitioned maximum likelihood and Bayesian methods using DNA sequence variation of nuclear and mitochondrial genes on 41 species, several subspecies and three undescribed species. Our findings support the monophyly of the Acheilognathidae. Two of the three currently recognized genera are not monophyletic and the family can be subdivided into six clades. These clades are further regarded as genera based on both their phylogenetic relationships and a reappraisal of morphological characters. We present a revised classification for the Acheilognathidae with five genera/lineages: Rhodeus, Acheilognathus (new constitution), Tanakia (new constitution), Paratanakia gen. nov., and Pseudorhodeus gen. nov. and an unnamed clade containing five species currently referred to as "Acheilognathus". Gene trees of several bitterling species indicate that the taxa are not monophyletic. This result highlights a potentially dramatic underestimation of species diversity in this family. Using our new phylogenetic framework, we discuss the evolution of the Acheilognathidae relative to classification, taxonomy and biogeography.
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Affiliation(s)
- Chia-Hao Chang
- Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan; Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30068, Taiwan; Department of Biology, Saint Louis University, St. Louis, MO 63103, USA
| | - Fan Li
- Department of Oceanography, National Sun Yet-sen University, Kaohsiung 80424, Taiwan; Institute of Biodiversity Science, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Fudan University, Shanghai 200433, China
| | - Kwang-Tsao Shao
- Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yeong-Shin Lin
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30068, Taiwan; Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu 30068, Taiwan
| | | | - Sungmin Kim
- School of Biological Sciences, Seoul National University, Seoul 151-747, Republic of Korea
| | - Hyeyoung Koo
- Department of Biological Science, Sangji University, Wonju 220-702, Republic of Korea
| | - Won Kim
- School of Biological Sciences, Seoul National University, Seoul 151-747, Republic of Korea
| | - Jae-Seong Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Shunping He
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Carl Smith
- School of Biology, University of St Andrews, St Andrews, Fife KY16 8LB, UK; Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65 Brno, Czech Republic
| | - Martin Reichard
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65 Brno, Czech Republic
| | - Masaki Miya
- Natural History Museum & Institute, Chiba 260-8682, Japan
| | - Tetsuya Sado
- Natural History Museum & Institute, Chiba 260-8682, Japan
| | - Kazuhiko Uehara
- Aquatic Life Conservation Research Center, Research Institute of Environment, Agriculture and Fisheries, Osaka 572-0088, Japan
| | - Sébastien Lavoué
- Institute of Oceanography, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Jen Chen
- Institute of Oceanography, National Taiwan University, Taipei 10617, Taiwan.
| | - Richard L Mayden
- Department of Biology, Saint Louis University, St. Louis, MO 63103, USA
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Wang M, Yang JX, Chen XY. Molecular phylogeny and biogeography of percocypris (Cyprinidae, Teleostei). PLoS One 2013; 8:e61827. [PMID: 23750199 PMCID: PMC3672144 DOI: 10.1371/journal.pone.0061827] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 03/18/2013] [Indexed: 12/05/2022] Open
Abstract
Fierce predatory freshwater fishes, the species of Percocypris (Cyprinidae, Teleostei) inhabit large rivers or lakes, and have a specific distribution pattern. Only a single species or subspecies occurs in each large-scale drainage basin of the Southeastern Tibetan Plateau. In this study, the molecular phylogenetic relationships for all but one of the described subspecies/species of Percocypris were investigated based on three mitochondrial genes (16S; COI; Cyt b) and one nuclear marker (Rag2). The results of Maximum Likelihood and Bayesian Inference analyses show that Percocypris is a strongly supported monophyletic group and that it is the sister group of Schizothorax. Combined with analyses of morphological characters, our results suggest that Percocypris needs to be reclassified, and we propose that six species be recognized, with corresponding distributions in five main drainages (including one lake). In addition, based on the results of the estimation of divergence times and ancestral drainages, we hypothesize that Percocypris likely originated in the early Miocene from a paleo-connected drainage system containing the contemporary main drainages of the Southeastern Tibetan Plateau. This study suggests that vicariance (due to the uplift of the Tibetan Plateau modifying the large-scale morphologies of drainage basins in the Southeastern Tibetan Plateau) has played an important role in the speciation of the genus. Furthermore, external morphological characters (such as the length of the fins) and an internal trait (the position of pterygiophore) appear to be correlated with different habitats in rivers and the lake.
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Affiliation(s)
- Mo Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jun-Xing Yang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- * E-mail: (XYC); (JXY)
| | - Xiao-Yong Chen
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- * E-mail: (XYC); (JXY)
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