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Inter- and intraspecific variation in flight muscle fibers is associated with migratory timing

Avian Research 2025年第1期16卷 30-38页

作者： Zhang, Shangmingyu DuBay, Shane Cheng, Yuwen Dong, Zhehan Liu, Zhengwei Wu, Yongjie Key Laboratory of Bio‐resources and Eco‐environment of Ministry of Education College of Life Sciences Sichuan University Chengdu 610065 China Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife College of Life Sciences Sichuan University Chengdu 610065 China Department of Biology University of Texas at Arlington Arlington TX United States

The life-history strategies of organisms are shaped by trade-offs among traits that influence survival, development, reproduction, and ultimately fitness. However, the specific physiological and environmental mechanisms driving population-level variation in phenotypic traits, particularly in relation to migratory adaptations, remain poorly understood. Elevational migration represents an adaptive behavior for mountain birds that offers a unique model to investigate adaptive phenotypes because of the diverse migratory strategies that have been observed within and between species. Flight muscles, as multifunctional organs, exhibit phenotypic variation that aligns with locomotor and thermoregulatory demands. Linking flight muscle phenotypes to migratory strategies can provide insights into inter- and intraspecific variation in migratory adaptations. In this study, we examined spring arrival dates at high-altitude breeding sites for three closely related high-altitude breeding birds in the mountains of Asia: Blue-fronted Redstart (Phoenicurus frontalis), Himalayan Bluetail (Tarsiger rufilatus), and Rufous-gorgeted Flycatcher (Ficedula strophiata). We analyzed relationships between arrival dates and phenotypic traits, including flight muscle physiology, morphology, and internal organ mass, alongside environmental effects on these traits. Our findings indicate that species arriving earlier encountered lower temperatures and exhibited reduced fiber cross-sectional areas coupled with higher fast oxidative glycolytic (FOG) fibers densities. Males displayed pronounced protandry and higher fast glycolytic (FG) fibers densities. Ambient temperature significantly influenced flight muscle phenotypes, highlighting intraspecific variation and the potential plasticity of flight muscle fibers as crucial mechanisms for adapting to migration strategies and environmental conditions. Additionally, this study underscores the potential role of sexual selection in shaping functional phenotyp

关键词： Elevational migration intraspecific variation Muscle fiber Phenotype Small-bodied birds

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intraspecific variation of multi-elements in seeds of Euptelea pleiospermum and its association with soils,climate,and leaf elements

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Journal of Plant Ecology 2024年第6期17卷 241-254页

作者： Hao Wu Hongjie Meng Mingxi Jiang Xinzeng Wei Key Laboratory of Aquatic Botany and Watershed Ecology Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China Center of Conservation Biology Core Botanical GardensChinese Academy of SciencesWuhan 430074China University of Chinese Academy of Sciences Beijing 100049China College of Horticulture and Forestry Sciences Huazhong Agricultural UniversityWuhan 430070China

Seed mineral nutrition is essential for early seedling establishment,and varies under different environmental ***,the intraspecific variation of multi-elements in seeds and the relative effects of climate and soil on seed elements remain unclear,even though understanding these factors is crucial for predicting plant reproductive responses to global ***,we sampled seeds from Euptelea pleiospermum across 18 populations in *** quantified the inter-population variation of 12 elements in the seeds and analysed their relationship with soil characteristics and climatic *** also explored the relationship of N and P concentrations between seeds and *** showed that seed elements were highly variable across different populations,with macroelements exhibiting lower variability than most of the *** the latitudinal gradient,the concentrations of K,Ca,Fe and Al in seeds increased,while the concentrations of C and Mn *** stoichiometry of seed elements did not significantly correlate with *** element concentrations were associated with both soil and climatic variables,and the influence of soil conditions on intraspecific variations is comparable to or even greater than climatic ***,seed stoichiometry was less related to environmental *** had higher P but lower N than leaves,with no correlation between seed elements and leaf *** findings suggest that mountain tree species respond to different local environments by adjusting seed element concentrations while maintaining relatively stable seed *** emphasize that,in addition to climate change,soil conditions should be considered when predicting the influence of environmental changes on the elemental composition of plant reproductive organs.

关键词： latitudinal gradient intraspecific variation seed elements macroelements microelements mountain tree species

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Environment-driven intraspecific variation shows coordination of functional traits of deciduous oaks among and within different biological levels

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Journal of Forestry Research 2024年第6期35卷 95-109页

作者： Yutong Lin Yuan Lai Songbo Tang Jeannine Cavender-Bares Josep Peñuelas Jordi Sardans Jianfeng Liu Lingling Zhang Yuanwen Kuang Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems South China Botanical GardenChinese Academy of SciencesGuangzhou 510650People’s Republic of China Yulin Normal University Yulin 537000People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou 510650People’s Republic of China Department of Ecology Evolution and Behavior University of MinnesotaSt.PaulMN 55108USA CSIC Global Ecology Unit CREAF-CSIC-UAB08193 BellaterraBarcelonaCataloniaSpain CREAF Cerdanyola del Vallès08193 BarcelonaCataloniaSpain Research Institute of Forestry Chinese Academy of ForestryBeijing 100091People’s Republic of China

Deciduous oaks(Quercus spp.)are distributed from subalpine to tropical regions in the northern hemi-sphere and have important roles as carbon sinks and in climate change *** variations in plant functional traits at multiple biological levels and linking them to environmental variables across geographical ranges is important for forecasting range-shifts of broadly-distrib-uted species under climate *** sampled leaves of five deciduous Quercus *** approximately 20°of latitude(~21°N-41°N)and 20 longitude(~99°E-119°E)across China and measured 12 plant functional traits at different biological *** traits varied distinctively,either within each biological level or among different levels driven by climatic and edaphic *** at the organ level were significantly correlated with those at the cellular and tissue levels,while traits at the whole-plant level only correlated with those at the tissue *** Quercus species responded to changing environments by regulating stomatal size,leaf thickness and the palisade mesophyll thickness to leaf thickness ratios with contrasting degree of effect to adjust the whole-plant functioning,i.e.,intrinsic water use efficiency(iWUE),carbon supply and nitrogen *** results suggest that these deciduous Quercus *** maintain vigour by increasing iWUE when subjected to large temperature changes and insufficient moisture,and by accu-mulating leaf non-structural carbohydrates under drought *** findings provide new insights into the inher-ent variation and trait coordination of widely distributed tree species in the context of climate change.

关键词： Climate gradient intraspecific variation Plant functional traits Deciduous Quercus species Whole-plant function

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intraspecific variation and SNP Identification in Medicinal Species of Panax Genus Based on DNA Barcoding Analysis

Intraspecific Variation and SNP Identification in Medicinal ...

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中药与天然药高峰论坛暨第十二届全国中药和天然药物学术研讨会

作者： Xiaochen Chen~1 Baosheng Liao~1 Jingyuan Song~1 Shilin Chen~(1 2) Jianping Han~(1 *) 1.Center for Computational Biology and Bioinformatics Institute of Medicinal Plant Development Chinese Academy of Medical Sciences &Peking Union Medical College Beijing 100193 PR China 2.China Academy of Chinese Medical Sciences Beijing 100700 China. Center for Computational Biology and Bioinformatics Institute of Medicinal Plant Development Chine Center for Computational Biology and Bioinformatics Institute of Medicinal Plant Development Chine

Aim of the study:Firstly to identify Panax genus by SNP sites,and to set up a special molecular identification method of ***,***,*** and *** in Pharmacopoeia of

关键词： Panax intraspecific variation SNPs ITS2 intragenomic divergence

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Effects of plant intraspecific variation on the prediction of C_(3)/C_(4)vegetation ratio from carbon isotope composition of topsoil organic matter across grasslands

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Journal of Plant Ecology 2021年第4期14卷 628-637页

作者： Wentao Luo Xiaoguang Wang Karl Auerswald Zhengwen Wang Michael I.Bird Christopher J.Still Xiao-Tao Lv Xingguo Han Erguna Forest-Steppe Ecotone Research Station Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China College of Environment and Resources Dalian Minzu UniversityDalian 116600China Technische Universität München Lehrstuhl für GrünlandlehreAlte Akademie 1285350 Freising-WeihenstephanGermany College of Science and Engineering and ARC Centre of Excellence for Australian Biodiversity and Heritage James Cook UniversityCairnsQueensland 4870Australia Department of Forest Ecosystems and Society Oregon State UniversityCorvallisORUSA State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China

Aims Understanding the patterns and drivers of carbon isotope discrimination(13Δ)in C_(3)and C_(4)functional groups is critical for predicting C_(3)/C_(4)vegetation ratio from the isotopic composition of soil organic *** this study,we aimed to evaluate how intraspecific variation will modify functional group-level 13Δvalues and the associated prediction of C_(3)/C_(4)vegetation *** We investigated 13Δof 726 individual plants(96 species;C_(3)and C_(4)functional groups)and topsoil organic matter in 26 grassland communities along an aridity gradient in northern *** fraction of C_(4)contribution was calculated with mixing models that considered:(i)both intra-and interspecific effects on the 13Δvalues of C_(3)and C_(4)functional groups;(ii)only interspecific effects;or(iii)none of these *** Findings We found divergent responses of plant 13Δat the intraspecific level to the changes of aridity across the *** 13Δof both C_(3)and C_(4)functional groups was negatively correlated with an aridity index,with higher sensitivity for C_(3)than for C_(4)functional *** 13Δvariation played a key role in driving the total 13Δvariations of C_(3)*** such intraspecific effect in mixing models led to a greatly increased fraction of C_(4)contribution to soil organic carbon.A correction for the effects of intraspecific variation is therefore essential for correctly inferring C_(3)/C_(4)vegetation ratio in the *** findings provide basic information for the reconstruction of past vegetation change from bulk materials in arid and semiarid biomes.

关键词： arid and semiarid grasslands interspecific variation intraspecific variation soil organic matter two-member mixing models vegetation ratio

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Image analysis of Moroccan carob seeds(Ceratonia siliqua L.)revealed substantial intraspecific variations depending on climate and geographic origin

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Ecological Processes 2022年第1期11卷 455-468页

作者： Jalal Kassout Younes Hmimsa Salama El Fatehi Abdeltif El Ouahrani Khalil Kadaoui Soufian Chakkour David Ariza‑Mateos Guillermo Palacios‑Rodríguez Rafael Navarro‑Cerrillo Mohammed Ater Laboratory of Applied Botany Bio‑Agrodiversity TeamFaculty of SciencesUniversity of Abdelmalek EssaadiTétouanMorocco Associated International Laboratory EVOLEA INEE‑CNRS‑CNRSTMontpellierFrance Polydisciplinary Faculty of Larache University of Abdelmalek EssaadiLaracheMorocco Forestry Engineering Department ERSAF Research Group RNM‑360University of CórdobaCórdobaSpain

Background:The carob tree(Ceratonia siliqua L.)is one of the most iconic tree species of the Mediterranean region,with valuable economic,ecological and cultural *** has been exploited around the Mediterranean region since antiquity and has been regarded as an important component of natural habitats and traditional *** studies have focused on its morphological,biochemical,and genetic ***,less is known about the intraspecific variation of seed *** this regard,and as an overall objective,we intend to evaluate the amplitude and the expression of intraspecific variations of carob seed traits at different ecological scales ranging from individual trees to different geographical *** addition,we investigated how the climate along the study area affects the extent of carob seed *** image analysis techniques,we measured seven traits related to the size and the shape of 1740 seeds collected from 18 populations of spontaneous *** distributed along a latitudinal transect in Morocco under different bioclimatic ***:The morphometric analysis of carob seed showed the effectiveness of adopted approach to highlight the amount and the amplitude of intraspecific variation according to geographic and climatic *** trait analysis revealed high intraspecific variability,explained by differences between and among carob populations and geographic *** area,perimeter,length,and width showed the largest variability between geographic ***,circularity,aspect ratio,and seed roundness showed higher variability at the tree ***,our results show that seed traits vary depending on altitude and climate ***:Revealing the amount and the structure of intraspecific traits variability of carob seed provides interesting insights to understand the mechanisms underlying trees adaptation to various environmental and ecological ***,intraspecific variatio

关键词： Carob tree Image analysis Seed traits intraspecific variation Morocco

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comintraspecific variation in heritable secondary metabolites and defensive strategies in a relict tree

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Journal of Plant Ecology 2018年第2期11卷 256-265页

作者： Adara Pardo Yonatan Cáceres Fernando Pulido Institute for Dehesa Research(INDEHESA) University of ExtremaduraPlasenciaSpain

Aims Key herbivory interaction traits such as plant defensive compounds may differ among populations of a single species due to the spatial variation in herbivore feeding guilds and the strength of the ***,the genealogy of population lineages could represent an additional source of variation interacting with the predominant eco-clinal *** tested for the existence of genetically based intraspecific variation in chemical defence profiles across the range of the relict tree Prunus lusitanica ***,we investigated geographical variation in defence inducibility and tested for the exist-ence of a trade-off between qualitative and quantitative *** We conducted a greenhouse experiment where 210 plants were grown under a common environment,comprising 10 different pop-ulations throughout the distribution range of the species and span-ning three separate regions:iberia,Morocco and *** test for the inducibility of defences,we artificially defoliated *** treatments were established within each population:undam-aged,defoliated and sampled after 2 h,and defoliated and sampled after 72 *** concentration of cyanogenic glycosides(prunasin)and phenolics was determined in leaf samples for all *** findings Basal levels of cyanogenics and phenolics significantly differed among populations and regions across the range of ***,with this variation having a heritable ***(pruna-sin)were significantly higher in ancient Macaronesian populations,while phenolic concentrations were larger in *** higher cyanogenic levels found in Macaronesia could be a consequence of the known stronger herbivory pressure in the islands than in iberia or the likely longer coevolutionary history with herbivores in this *** findings indicate that the geographical variation of key ecological traits such plant chemical defences can be imprinted by phylogeographical signals,particularly in relict spe

关键词： herbivory intraspecific variation phylogeography plant defences relict flora

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广赤眼蜂滞育诱导中的种内变异及复寄生的作用(英语)

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Insect Science 1995年第4期2卷 337-344页

作者：李丽英朱涤芳广东省昆虫研究所广东省昆虫研究所广州510260

研究了采自伊朗不同害虫的两种广赤眼蜂种群(*** A和*** B)的滞育,在米蛾卵内用恒温8℃,5℃或变温(11-23)℃-11℃容易地诱导*** A进入稳定的滞育,但却不能用同样的温度和寄主诱导*** B进入滞育.试验表明,母代的寄主和避免复寄生的能力... 详细信息

研究了采自伊朗不同害虫的两种广赤眼蜂种群(*** A和*** B)的滞育,在米蛾卵内用恒温8℃,5℃或变温(11-23)℃-11℃容易地诱导*** A进入稳定的滞育,但却不能用同样的温度和寄主诱导*** B进入滞育.试验表明,母代的寄主和避免复寄生的能力可能在广赤眼蜂滞育诱导种内变异中起重要作用.

关键词： Trichogramma evanescens Westwood intraspecific variation superparasitism diapause induction

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intraspecific Variability and Problematic Dimorphism in the Early Cretaceous(Valanginian)Ammonite Saynoceras verrucosum(d'Orbigny,1841)

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Acta Geologica Sinica(English Edition) 2007年第6期81卷 877-882页

作者： Izabela PLOCH Polish Geological Institute Geological Museum

The population of Saynoceras verrucosum （d＇Orbigny） from the Polish basin （Wawal section, central Poland） shows no significant intraspecific variability. Dimorphism has not been found in this population. Statistical analyses of material from the shallow epicratonic Polish basin and the relatively deep Vocontian basin （southeastern France） indicated two populations. Forms from the Polish basin are somewhat more inflated and smaller than forms from the Vocontian basin.

关键词： intraspecific variation Saynoceras verrucosum dimorphism Central Poland Wawal Section

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Comparative genome analysis on intraspecific evolution and nitrogen fixation of Leptospirillum ferriphilum isolates

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Transactions of Nonferrous Metals Society of China 2020年第6期30卷 1635-1646页

作者： Hong-wei LIU Liang-feng XU Xue GUO Hui-dan JIANG Xue-duan LIU Yi-li LIANG Hua-qun YIN Ya-zi LIU School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of Biometallurgy of Ministry of Education Central South UniversityChangsha 410083China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Biotechnology Research Institute Hunan Academy of Agricultural SciencesChangsha 410125China

To reveal the intraspecific evolution of Leptospirillum ferriphilum isolates which thrived in industrial bioleaching ecosystems and acid mine drainages,genome sequences of *** YSK,*** DX and *** ZJ were determined to compare with complete genome of *** *** genome comparisons reveal that extensive intraspecific variation occurs in their genomes,and that the loss and insertion of novel gene blocks of probable phage origin may mostly contribute to heterogeneity of gene content among *** ***,a nif gene cluster is identified in *** YSK and *** ZJ *** analysis and further experiments indicate that the nif gene cluster in *** YSK inherits from ancestor rather than lateral gene ***,results suggest that the population of *** undergoes frequent genetic recombination,resulting in many closely related genome types in recent *** combinatorial processes profoundly shape their physiologies and provide the basis for adaptation to different niches.

关键词： Leptospirillum ferriphilum comparative genome nitrogen fixation intraspecific variation recombination

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