Mitochondrial cytochrome b Sequence Variation and Phylogenetics of the Highly Specialized Schizothoracine Fishes (Teleostei: Cyprinidae) in the Qinghai-Tibet Plateau

Qi, Di; Li, Taiping; Zhao, Xinquan; Guo, Sheng‐Ping; Li, Junxiang

doi:10.1007/s10528-006-9022-5

Cited by 22 publications

(17 citation statements)

References 25 publications

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“…This confirmed the monophyly of the schizothoracine species (bootstrap value [BP] = 98, Bayesian posterior probability [BPP] = 100), with 1 clade including members of the morphologically specialized and highly specialized subgroups with partial or complete scale-loss phenotypes (BP = 100, BPP = 100) and another clade containing members of the morphologically primitive subgroup with normal scales (BP = 100, BPP = 100). This is largely congruent with previous schizothoracine molecular phylogenies (Qi et al 2006;Qi et al 2012). However, both BPs in ML topology and BPPs in Bayesian topology were higher at internal nodes compared with the external nodes, in which several branches collapsed into polytomy.…”

Section: Phylogenetic Relationshipssupporting

confidence: 89%

Signatures of functional constraint atFgfr1aGenes in schizothoracine fishes (Pisces: Cypriniformes): The dermal skeleton variation adapted to high-altitude environments

Guo

Xie

Zhang

et al. 2016

Integrative Zoology

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Fishes harbor a huge resource of phenotypic diversity and are useful for understanding the genetic basis of morphological variation. However, it is difficult to transfer classical genetic mapping to most non-model species. In this study, we performed a comparative sequence analysis of Fgfr1a to first interpret the evolution of this candidate scale-loss gene in 15 schizothoracine fishes with various scale phenotypes. While considerable amino acid (AA) substitutions were observed, molecular evolution analysis indicates that the overall coding regions were subject to functional constraint. We also identified extra copies of Fgfr1a in 4 scale-loss fishes and detected accelerated evolution in one AA substitution specific to these duplicates. We speculate that Fgfr1a had accumulated mutations in the ancestral lineage of scale-loss schizothoracine fishes before experiencing duplication events, which was further followed by the diversification of species. In silico mutation analysis predicted deleterious effects of the mutations while no disruptive molecular mechanism was detected. Collectively, our results highlight the important role of Fgfr1a gene in the adaptive evolution of schizothoracine fishes during their radiation in the Qinghai-Tibetan Plateau.

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Section: Phylogenetic Relationshipssupporting

confidence: 89%

Signatures of functional constraint atFgfr1aGenes in schizothoracine fishes (Pisces: Cypriniformes): The dermal skeleton variation adapted to high-altitude environments

Guo

Xie

Zhang

et al. 2016

Integrative Zoology

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“…Indeed, this would be consistent with a relatively recent speciation event occurring sometime during the separation of the Yellow River and Lake Qinghai Zhao et al, 2005;Qi et al, 2006).…”

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confidence: 78%

Phylogeography and conservation genetics of scaleless carp (Gymnocypris przewalskii) of Lake Qinghai, China.

O'Bryan¹

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“…The haplotype sharing was a common phenomenon in schizothoracines (Qi et al. 2006; He and Chen 2007; Duan et al. 2009).…”

Section: Discussionmentioning

confidence: 99%

Comparative phylogeography and evolutionary history of schizothoracine fishes in the Changtang Plateau and their implications for the lake level and Pleistocene climate fluctuations

Chen

Liu

et al. 2016

Ecology and Evolution

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The water level oscillation of endorheic lakes and extent change of glaciers associated with the Asian monsoon are known as prominent representatives of climatic and environmental events in the Tibetan Plateau during the Quaternary. However, details process in spatial and temporal changes are still debated. We use the schizothoracines as a palaeoclimatic proxy to test two hypotheses concerning the evolution of Quaternary glaciations and lakes of the Changtang Plateau: (1) the Tibetan glaciations generally tended to decrease since the middle Pleistocene; (2) the lakes expansion was driven by summer monsoon rainfall. Based on a wide range‐wide sampling throughout in the Changtang Plateau and its adjacent drainages, we constructed phylogeny and demographic histories of schizothoracines in the Changtang Plateau. Our results showed that the populations of the exorheic rivers and lakes in southern Tibet possessed higher genetic variability, earlier coalescent and expansion times than those of the endorheic lakes in the Changtang Plateau. Population expansions are highly consistent with phases of strong summer monsoon and high lake level during interglacial stages. The maximum growth rate intervals showed three pulses from 64.7 to 54.8, 39.6 to 31.0, and 14.9 to 2.4 kya respectively. The significant positive correlations were found between regional precipitation and genetic diversity, as well as coalescence time of populations in the endorheic lakes. We suggested that the demographic history of the schizothoracines reflects the spatial and temporal changes in climate and lake level, in particular, in regional precipitation gradients associated with changes of the South Asian monsoon, and supports the climatic hypothesis of a general diminishing tend in Tibetan glaciations in the Tibetan Plateau since the middle Pleistocene.

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Mitochondrial cytochrome b Sequence Variation and Phylogenetics of the Highly Specialized Schizothoracine Fishes (Teleostei: Cyprinidae) in the Qinghai-Tibet Plateau

Cited by 22 publications

References 25 publications

Signatures of functional constraint atFgfr1aGenes in schizothoracine fishes (Pisces: Cypriniformes): The dermal skeleton variation adapted to high-altitude environments

Signatures of functional constraint atFgfr1aGenes in schizothoracine fishes (Pisces: Cypriniformes): The dermal skeleton variation adapted to high-altitude environments

Phylogeography and conservation genetics of scaleless carp (Gymnocypris przewalskii) of Lake Qinghai, China.

Comparative phylogeography and evolutionary history of schizothoracine fishes in the Changtang Plateau and their implications for the lake level and Pleistocene climate fluctuations

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