Abstract
The Schizothoracinae fishes, endemic species in the Tibetan Plateau, are considered as ideal models for highland adaptation and speciation investigation. Despite several transcriptome studies for highland fishes have been reported before, the transcriptome information of Schizothoracinae is still lacking. To obtain comprehensive transcriptome data for Schizothoracinae, the transcriptome of a total of 183 samples from 14 representative Schizothoracinae species, were sequenced and de novo assembled. As a result, about 1,363 Gb transcriptome clean data was obtained. After the assembly, we obtain 76,602–154,860 unigenes for each species with sequence N50 length of 1,564–2,143 bp. More than half of the unigenes were functionally annotated by public databases. The Schizothoracinae fishes in this work exhibited diversified ecological distributions, phenotype characters and feeding habits; therefore, the comprehensive transcriptome data of those species provided valuable information for the environmental adaptation and speciation of Schizothoracinae in the Tibetan Plateau.
Highlights
Background & SummaryThe Tibetan Plateau, the world’s largest and highest plateau, has unique geographical and climatic characteristics, such as the high altitude, dramatic difference in day and night temperature, strong solar radiation[1]
Several researches on the morphology, archaeology and molecular biology of Schizothoracine fishes on the Tibetan Plateau have shown that there is close correlation between the species diversity and the uplift of the Tibetan Plateau[6,7] and the morphological traits of Schizothoracine fishes is related with specific periods of geological evolution of the Tibetan Plateau such as pharyngeal teeth, scales and whiskers[5]
The Schizothoracine fishes are considered as good model species for the investigations on highland adaptation and speciation
Summary
Background & SummaryThe Tibetan Plateau, the world’s largest and highest plateau, has unique geographical and climatic characteristics, such as the high altitude, dramatic difference in day and night temperature, strong solar radiation[1]. In China, more than 70 species, account for over 80% of the world’s Schizothoracine fishes, are mainly distributed in lakes and rivers of the Tibetan Plateau and adjacent areas[4]. More genomic and transcriptome data are required to decipher the relationship of the speciation and the uplift of the Tibetan Plateau for the Schizothoracine fishes.
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