Temperature acclimation in hot-spring snakes and the convergence of cold response
作者机构：CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China University of Chinese Academy of SciencesBeijing 100049China College of Wildlife and Protected AreaNortheast Forestry UniversityHarbin 660223China State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental SciencesBeijing 100085China College of Life ScienceNeijiang Normal UniversityNeijiangSichuan 641100China Center for Excellence in Animal Evolution and GeneticsChinese Academy of SciencesKunming 650223China
出 版 物：《The Innovation》 (创新（英文）)
年 卷 期：2022年第3卷第5期
页 面：97-106页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
基 金：supported by the Strategic Priority Research Program of Chinese Academy of Sciences(CAS)(XDB31000000) the National Natural Science Foundation of China(32100396) the Second Tibetan Plateau Scientific Expedition and Research Program(STEP)(2019QZKK0501) Biodiversity Survey,Monitoring and Assessment Project of Ministry of Ecology and Environment,The People’s Republic of China,China(2019HB2096001006) Key Research Program of Frontier Sciences,CAS(QYZDB-SSW-SMC058) the International Partnership Program of Chinese Academy of Sciences(151751KYSB20190024) the Sichuan Science and Technology Program(2021JDJQ0002 2021YJ0088).
摘 要：Animals have evolved sophisticated temperature-sensing systems and mechanisms to detect and respond to ambient temperature changes.As a relict species endemic to the Qinghai-Tibet Plateau,hot-spring snake(Thermophis baileyi)survived the dramatic changes in climate that occurred during plateau uplift and ice ages,providing an excellent opportunity to explore the evolution of temperature sensation in ectotherms.Based on distributional information and behavioral experiments,we found that T.baileyi prefer hotspring habitats and respond more quickly to warmth than other two snakes,suggesting that T.baileyi may evolve an efficient thermal-sensing system.Using high-quality chromosome-level assembly and comparative genomic analysis,we identified cold acclimation genes experiencing convergent acceleration in high-altitude lineages.We also discovered significant evolutionary changes in thermosensation-and thermoregulation-related genes,including the transient receptor potential(TRP)channels.Among these genes,TRPA1 exhibited three species-specific amino acid replacements,which differed from those found in infrared imaging snakes,implying different temperature-sensing molecular strategies.
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