首页|Evolutionary history shapes variation of wood density of tree species across the world

Evolutionary history shapes variation of wood density of tree species across the world

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The effect of evolutionary history on wood density variation may play an important role in shaping variation in wood density,but this has largely not been tested.Using a comprehensive global dataset including 27,297 measurements of wood density from 2621 tree species worldwide,we test the hy-pothesis that the legacy of evolutionary history plays an important role in driving the variation of wood density among tree species.We assessed phylogenetic signal in different taxonomic(e.g.,angiosperms and gymnosperms)and ecological(e.g.,tropical,temperate,and boreal)groups of tree species,explored the biogeographical and phylogenetic patterns of wood density,and quantified the relative importance of current environmental factors(e.g.,climatic and soil variables)and evolutionary history(i.e.,phyloge-netic relatedness among species and lineages)in driving global wood density variation.We found that wood density displayed a significant phylogenetic signal.Wood density differed among different biomes and climatic zones,with higher mean values of wood density in relatively drier regions(highest in subtropical desert).Our study revealed that at a global scale,for angiosperms and gymnosperms com-bined,phylogeny and species(representing the variance explained by taxonomy and not direct explained by long-term evolution process)explained 84.3％and 7.7％of total wood density variation,respectively,whereas current environment explained 2.7％of total wood density variation when phylogeny and species were taken into account.When angiosperms and gymnosperms were considered separately,the three proportions of explained variation are,respectively,84.2％,7.5％and 6.7％for angiosperms,and 45.7％,21.3％and 18.6％for gymnosperms.Our study shows that evolutionary history outpaced current environmental factors in shaping global variation in wood density.

Wood densityPhylogenyAngiospermsGymnospermsClimate factorsBiophysical parameters

Fangbing Li、Hong Qian、Jordi Sardans、Dzhamal Y.Amishev、Zixuan Wang、Changyue Zhang、Tonggui Wu、Xiaoniu Xu、Xiao Tao、Xingzhao Huang

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Anhui Province Key Laboratory of Forest Resources and Silviculture,Anhui Agricultural University,Hefei 230036,China

State Key Laboratory of Subtropical Silviculture,Zhejiang A&F University,Hangzhou 311300,China

Research and Collections Center,Illinois State Museum,1011 East Ash Street,Springfield,IL 62703,USA

CREAF,Cerdanyola del Vallès,Barcelona 08193,Spain

Global Ecology Unit CREAF-CSIC-UAB,CSIC Bellaterra,Barcelona 08193,Spain

Key Laboratory of Ecosystem Carbon Source and Sink,China Meteorological Administration(ECSS-CMA),School of Applied Meteorology,Nanjing University of Information Science & Technology,219 Ningliu Road,Nanjing 210044,China

Department of Natural Resources Management,Lakehead University,Thunder Bay,Ontario P7B 5E1,Canada

School of Forestry & Landscape of Architecture,Anhui Agricultural University,Hefei 230036,China

Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou 311400,China

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Scientific Research Project of Anhui ProvinceState Key Laboratory of Subtropical SilvicultureProvincial Natural Resources FundNational Key R&D Program of China

2022AH050873SKLSS-KF2023-081908085QC1402018YFD1000600

2024

10.1016/j.pld.2024.04.002

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCD
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2024.46(3)