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Asian Herpetological Research 2023年第2期14卷 167-174页

作者： Yangyang ZHAO Cui YANG Yongxing HE Yue QI Shuhui CAO Xue BIAN Wei ZHAO Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution School of Life SciencesLanzhou UniversityLanzhou 730000GansuChina

The environmental characteristics of hypothermia and hypoxia exert great selective pressure on the energy metabolism of high-altitude animals,especially the ectotherms.Current research on energy-limited adaptation of high-altitude ectotherms has focused on energy expenditures.However,the mechanisms of increasing energy intake in high-altitude ectotherms have been studied rarely.In order to investigate the adaptation mechanism of the small intestine,the key part of energy acquisition for animals,to energy limitation at high altitude in ectotherms,the gut proteins of phrynocephalus vlangalii from high-and low-altitude populations were compared using label free proteomics.GO enrichment and KEGG pathway analysis showed that proteins associated with energy intake,such as those involved in oxidation-reduction processes,glutathione metabolism,oxidoreductase activity,cofactor binding,catalytic activity and metabolic pathways,were significantly up-regulated in high-altitude populations;while proteins associated with energy expenditure,such as immune responses and processes,membrane attack complexes,natural killer pathway and other immune-related processes,were significantly down-regulated in expression.

关键词： energy intake energy limitation high altitude label-free proteomic analysis lipid metabolism phrynocephalus vlangalii

Tail Waving Speed Affects Territorial Response in the Toad-headed Agama phrynocephalus vlangalii

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Asian Herpetological Research 2018年第3期9卷 182-187页

作者： Xia QIU Jinzhong FU Yin QI Chengdu Institute of Biology Chinese Academy of Sciences

Territorial response affects a resident＇s access to resources and mates, but the response level is likely flexible

关键词： tail display territorial response 3D animation playback phrynocephalus vlangalii

An Ethogram of the Toad-headed Lizard phrynocephalus vlangalii during the Breeding Season

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Asian Herpetological Research 2011年第2期2卷 110-116页

作者： Yin QI Shasha LI Langduoerji SUO Hua LI Yuezhao WANG Chengdu Institute of Biology Chinese Academy of Sciences College of Life Sciences Sichuan University Management Bureau of Zoige Wetland Nature Reserve

In this study, we intended to construct an ethogram of the toad-headed lizard phrynocephalus vlangalii by classifying and describing its behaviors using the Posture-act-environment （PAE） method. Through direct field observation and video recording, we obtained eight postures, sixty-two acts and ten environments, and thus we formed an ethogram consisting of eighty-three behaviors encoded with PAE. A complete ethogram for a species could provide systematic behavioral information which helps to understand the connections among related behaviors and provides background information for specific behavioral study, hence the present ethogram will be greatly useful for future behavioral studies on P. vlangalii as well as other phrynocephalus species.

关键词： reproductive behavior phrynocephalus vlangalii PAE coding posture-act-environment tail curling

Impact of the Qinghai-Tibet Railway on Population Genetic Structure of the Toad-Headed Lizard,phrynocephalus vlangalii

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Asian Herpetological Research 2012年第4期3卷 280-287页

作者： Dun HU Jinzhong FU Fangdong ZOU Yin QI Key Laboratory of Bio-resources and Eco-environment (Ministry of Education) College of Life SciencesSichuan University Chengdu Institute of Biology Chinese Academy of Sciences Department of Integrative Biology University of Guelph

Using data from nine microsatellite DNA loci and a population genetic approach,we evaluate the barrier effect of the Qinghai-Tibet Railway on toad-headed lizard,phrynocephalus vlangalii. The study area is along a 20 km stretch of the railway on northern Qinghai-Tibet Plateau,and this section of the railway was constructed between 1958–1979. Both assignment tests and analysis of molecular variance(AMOVA) were used for data analysis. We found significant genetic differentiation between the populations from the study area and those from a further southeastern area,which are separated by a 20 km gap. This suggests the existence of population substructure at a fine-scale. However,we did not detect any difference between samples from the western and eastern sides of the railway within the study area,and concluded that the railway may not impose a significant barrier effect on these lizard populations at the present time. Available suitable habitat alongside the railway and bridge underpasses may have facilitated the gene exchange between the sides. The relatively short time since the completion of the railway may not allow the differentiation to accumulate to a detectable level. Since the Qinghai-Tibet Plateau maintains a unique and fragile ecosystem,long-term monitoring of such man-made landscape features is imperative for protecting this ecosystem.

关键词： Qinghai-Tibet Railway barrier effect population structure phrynocephalus vlangalii microsatellite DNA Bayesian assignment test

Tail display is regulated by anaerobic metabolism in an Asian agamid lizard

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Integrative Zoology 2021年第5期16卷 729-740页

作者： Xinxin ZHU Xia QIU Xiaolong TANG Yin QI Chengdu Institute of Biology Chinese academy of sciencesChengduChina University of Chinese Academy of Sciences BeijingChina Institute of Biochemistry and Molecular Biology School of Life SciencesLanzhou UniversityLanzhouChina

Understanding the mechanism underlying signal variation is an important goal in the study of animal communication.Several potential causes have been proposed for signal variation,including environmental noise(e.***.wind,sound),energy limitation,and predation risk,among others,but the physiological control of many signals are often unclear.Here,we examined the correlation between tail display signal variation and energy metabolic activity using an Asian agamid lizard phrynocephalus vlangalii.Individual tail display signals were observed in the field,and blood lactate concentration as well as 2 energy metabolic enzymes was assayed.Our results showed that average tail coil speed was positively associated with blood lactate concentration,while tail coil duration was negatively associated with LDH activity.We also found that average tail lash speed was positively associated with blood lactate concentration,suggesting that the tail display behavior of P.vlangalii was regulated by anaerobic metabolism.Furthermore,the correlation between tail display behavior and energy metabolism was not sex-dependent.Taken together,our research provides insight into the physiological mechanisms underlying tail display variation in lizards,and suggests that tail display variation likely transmits important information on individual body condition and resource holding potential.

关键词： anaerobic metabolism lizard phrynocephalus vlangalii signal variation tail display

Transcriptome Sequencing Provides Evidence of Genetic Assimilation in a Toad-Headed Lizard at High Altitude

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Asian Herpetological Research 2021年第3期12卷 315-322页

作者： Weizhao YANG Tao ZHANG Zhongyi YAO Xiaolong TANG Yin QI Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina Department of Biology Lund UniversityLund 22362Sweden Institute of Biochemistry and Molecular Biology School of Life ScienceLanzhou UniversityLanzhou 730000GansuChina

Understanding how organisms adapt to the environment is a compelling question in modern evolutionary biology.Genetic assimilation provides an alternative hypothesis to explain adaptation,in which phenotypic plasticity is first triggered by environmental factors,followed by selection on genotypes that reduce the plastic expression of phenotypes.To investigate the evidence of genetic assimilation in a high-altitude dweller,the toad-headed agama phrynocephalus vlangalii,we conducted a translocation experiment by moving individuals from high-to low-altitude environments.We then measured their gene expression profiles by transcriptome sequencing in heart,liver and muscle,and compared them to two low-altitude species P.axillaris and P.forsythii.The results showed that the general expression profile of P.vlangalii was similar to its viviparous relative P.fors ythii,however,the differentially expressed genes in the liver of P.vlangalii showed a distinct pattern compared to both the lowaltitude species.In particular,several key genes(FASN,ACAA2 and ECI2)within fatty acid metabolic pathway were no longer differentially expressed in P.valgnalii,suggesting the loss of plasticity for this pathway after translocation.This study provides evidence of genetic assimilation in fatty acid metabolism that may have facilitated the adaptation to high-altitude for P.vlangalii.

关键词： genetic assimilation gene expression plasticity phrynocephalus vlangalii

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慢性低氧对青海沙蜥体温调节与代谢的影响

慢性低氧对青海沙蜥体温调节与代谢的影响

作者：李维新兰州大学

学位级别：硕士

低氧会引起从原生动物到哺乳动物一系列的行为性与生理性的应答。phrynocephalus vlangalii (P. vlangalii)广泛分布于青藏高原,其栖息环境具有较大的海拔跨度和生态多样性。在本次实验中,P. vlangalii被放置于低氧箱(8%02)中驯化6周(... 详细信息

低氧会引起从原生动物到哺乳动物一系列的行为性与生理性的应答。phrynocephalus vlangalii (P. vlangalii)广泛分布于青藏高原,其栖息环境具有较大的海拔跨度和生态多样性。在本次实验中,P. vlangalii被放置于低氧箱(8%02)中驯化6周(对照组：15%02),之后,在两个温度(20℃和30℃)下,测定P.vlangalii的最适体温(preferred body temperature, preferred Tb)、标准代谢率(standard metabolic rate, SMR)、心率(heart rate, HR)和代谢酶活性。实验结果表明,慢性低氧会引起P. vlangalii的最适体温、SMR与HR降低。经过低氧驯化,20℃时,8%O2组中肝脏与骨骼肌的乳酸脱氢酶(lactate dehydrogenase,LDH)活性显著升高,但是,当测定温度为30℃时,其活性无显著差异。此外,20℃和30℃时,低氧驯化会引起心脏内LDH活性的显著降低。低氧组心脏中LDH的Q10值显著升高,说明低氧会改变LDH活性的热敏性。LDH同工酶电泳结果表明,P. vlangalii的肝脏、骨骼肌和心脏中LDH都包含5种同工酶(LDH1、LDH2、LDH3、LDH4和LDH5),而且在这三种组织中,5种同工酶的表达比例不同,并具有组织特异性。LDH1与LDH2主要存在于P. vlangalii的心脏中,而LDH4与LDH5主要存在于P. vlangalii的肝脏与骨骼肌中,此结果说明肝脏、骨骼肌和心脏对有氧代谢与无氧代谢的偏好性不同。20℃和30℃时,低氧组肝脏中柠檬酸合酶(citrate synthase, CS)的活性显著降低,但是,骨骼肌与心脏中的CS活性却无显著差异。此外,低氧组骨骼肌中CS的Q10显著升高。因此,我们推断慢性低氧会引起P. vlangalii体温下调与代谢的一系列应答,并具有组织特异性。

关键词： phrynocephalus vlangalii 慢性低氧最适体温标准代谢率酶活性