Integrated transcriptome provides resources and insights into the adaptive evolution of colonized brown trout (<scp><i>Salmo trutta</i></scp> fario) in the Tibetan Plateau

Chen, Xiaowen; Wang, Jun; Yue, Wucheng; Lei, Shuangyong; Puqiong,; Dobjay, Solange; Li, Zhihua; Wang, Chenghui

doi:10.1111/jwas.12621

Cited by 7 publications

(5 citation statements)

References 58 publications

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“…Hypoxia in the river system can be assumed to increase with elevation from sea level, resulting from a lower barometric pressure causing a decrease in oxygen levels. Distance from river mouth was very strongly correlated with elevation, and therefore candidate blocks associated with it may include particularly relevant candidate genes involved in altitude and hypoxia adaptation, such as the major regulators of hypoxia responses hif1a and eif5 (Braz-Mota & Almeida-Val, 2021;Tariq, Ito, Ishfaq, Bradshaw, & Yoshida, 2016), and rock2 (Chen et al, 2020).…”

Section: Functional Relevance Of Identified Candidate Genesmentioning

confidence: 99%

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Miettinen,

Dannewitz,

Palm

et al. 2023

Preprint

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Insights into the genetic basis of local adaptation and drivers of population differentiation improve our understanding of evolution and the maintenance of biological diversity. Characterising adaptively important genetic variation also allows more efficient planning of conservation and management actions. We used a genome-wide SNP array to analyse the genetic population structure of a large Atlantic salmon (Salmo salar) population in the interconnected Tornio/Torne and Kalix River system of the Baltic Sea basin, and to identify genomic signatures of fine-scale selection within it. We identified signals of selection and genotype-environment associations (GEA) especially on chromosome (Chr) 9, including on a haploblock containing thesix6gene and other loci that have been earlier suggested to be adaptively important in salmonids. We also detected signals of selection in genome regions including other genes of ecological relevance, such as two known appetite-controlling genes in the melanocortin system (pomcaon Chr 9 andmc4ron Chr 14), and the maturation-associated genetaar13c-like(on Chr 21). Variation in these and other identified candidate genes may potentially reflect differential selective pressures experienced by salmon from different parts of the large river system, regarding traits related to e.g. vision, feeding and growth, age at maturity and/or migratory timing. This indicates a need for management strategies to consider ecologically important genomic regions such as these, in order to protect adaptive genetic diversity in wild salmon populations.

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Section: Functional Relevance Of Identified Candidate Genesmentioning

confidence: 99%

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Miettinen,

Dannewitz,

Palm

et al. 2023

Preprint

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“…56,64 In comparison with other species of salmonids, transcriptome analysis indicated that Tibetan brown trout contains 129 positively selected genes and 126 species-specific gene families showing strong adaptability to high altitude, for example, genes related to energy metabolism, cardiovascular development, ammonium transport and DNA damage and repair. 90 Brown trout is now regarded as a locally naturalized species in Yadong, Tibet, and was even listed as a second-class key aquatic wild animal under protection in Tibet in 1992 (http://www.xizang.gov.cn/zwgk/xxfb/fgwj/ 201902/t20190223_61719.html). As one of the major economic fish species in Tibet, brown trout aquaculture is an important economic resource for local residents.…”

Section: The Outcome Of Non-native Fish Species In Chinamentioning

confidence: 99%

“…This species evolved some unique morphological, physiological and genetic characteristics that can be well adapted to the extreme environment of strong ultraviolet radiation and low temperature in the Yadong River, 88,89 and developed a relatively stable population (as a subspecies S. trutta fario ) 56,64 . In comparison with other species of salmonids, transcriptome analysis indicated that Tibetan brown trout contains 129 positively selected genes and 126 species‐specific gene families showing strong adaptability to high altitude, for example, genes related to energy metabolism, cardiovascular development, ammonium transport and DNA damage and repair 90 . Brown trout is now regarded as a locally naturalized species in Yadong, Tibet, and was even listed as a second‐class key aquatic wild animal under protection in Tibet in 1992 (http://www.xizang.gov.cn/zwgk/xxfb/fgwj/201902/t20190223_61719.html).…”

Section: Representative Fish Species Introduced For Aquaculturementioning

confidence: 99%

Introduction of non‐native fish for aquaculture in China: A systematic review

Kang

Vitule

et al. 2022

Reviews in Aquaculture

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Aquaculture, especially of non-native species and translocated domestic species, is a greatly encouraged way of relieving the conflicts between food and economic demand and resource depletion. We herein summarized the introduction history of non-native fish for aquacultural use in China, including 105 species introduced from abroad and 61 species translocated domestically across river basins, which has brought great economic benefits but high ecological risks. Of these, one-fourth have successfully established wild populations in natural waters and 15% have successfully invaded. We presented specific examples of seven aquaculture species/taxa and three aquarium species/taxa to explain their outcomes. The notable economic benefits, complex species composition and strain selection of tilapias, carps and sturgeons may together facilitate their invasion, and result in fish diversity decline, genetic pollution, and loss of ecosystem service. We specifically reviewed invasion cases in lakes and reservoirs and found that lakes in western China and reservoirs made by major This article is a Sena De Silva paper. The Sena De Silva paper is an honorific title dedicated to the memory of Professor Sena De Silva, who was the founding editor of Reviews in Aquaculture and a globally renowned aquaculture scholar, pioneer and advocate. The title is awarded to high quality articles that excel in one, or more, of the following qualities: i) Novelty and originality; ii) Likelihood of direct positive impacts for the aquaculture sector, with keen focus on any of, or all three: environmental sustainability, economic viability, and social responsibility iii) Overall quality of scientific reasonings coupled with realworld applicability.

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“…Previous studies have mainly focused on the high-altitude adaptability of plateau species, but little is known about the reasons why plain species cannot adapt to the plateau, because it is not clear which plateau stress factors play a major role (Cao et al, 2008;Yang et al, 2015;Xu et al, 2016;Chen et al, 2020). Under such unclear conditions, it may cause some studies to blindly select plain control species.…”

Section: Introductionmentioning

confidence: 99%

Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau

Yuanfu

et al. 2023

Front. Mar. Sci.

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The distribution pattern of species is determined by the environment and their adaptability to the environment. Qinghai-Tibet Plateau has become a natural laboratory for studying adaptive evolution due to its extreme environmental characteristics such as low temperature, low oxygen, high salinity and high ultraviolet radiation (UVR). Fish are sensitive to the environmental stress, so they are ideal materials for studying high-altitude adaptation of animals. Previous studies have mainly focused on the adaptability of plateau species, but the reasons why plain species cannot spread to the plateau have been ignored. In this study, stress experiments and histological experiments were used to compare the tolerance of six Barbini fishes (family: Cyprinidae) distributed at different altitudes and regions to low temperature, low oxygen, salinity and UVR. Results showed that the tolerance of fishes to high-altitude environmental stress factors was closely related to the environmental stress of their main habitats. The high-altitude fish Gymnocypris eckloni had strong tolerance to all stress factors, while the other five fishes from middle and low altitudes could not adapt to single or multiple stress factors, with significant interspecific differences. Among these factors, middle- and low-altitude fishes showed common low tolerance to UVR, suggesting that high UVR, the factor lacking at low altitude areas, plays an important role. Moreover, during the uplift of the Qinghai-Tibet Plateau, Schizothorax fish disappeared from the middle of the plateau. We speculate that this was caused by its intolerance to the increasingly extreme plateau environment, especially salinity.

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Integrated transcriptome provides resources and insights into the adaptive evolution of colonized brown trout (Salmo trutta fario) in the Tibetan Plateau

Cited by 7 publications

References 58 publications

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Introduction of non‐native fish for aquaculture in China: A systematic review

Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau

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