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

Fangbing Li ¹Hong Qian ²Jordi Sardans ³Dzhamal Y.Amishev ⁴Zixuan Wang ⁵Changyue Zhang ⁵Tonggui Wu ⁶Xiaoniu Xu ⁵Xiao Tao ⁵Xingzhao Huang⁷

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作者信息

1. 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
2. Research and Collections Center,Illinois State Museum,1011 East Ash Street,Springfield,IL 62703,USA
3. 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
4. Department of Natural Resources Management,Lakehead University,Thunder Bay,Ontario P7B 5E1,Canada
5. School of Forestry & Landscape of Architecture,Anhui Agricultural University,Hefei 230036,China
6. Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou 311400,China
7. 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;School of Forestry & Landscape of Architecture,Anhui Agricultural University,Hefei 230036,China
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Abstract

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.

Key words

Wood density/Phylogeny/Angiosperms/Gymnosperms/Climate factors/Biophysical parameters

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基金项目

Scientific Research Project of Anhui Province(2022AH050873)

State Key Laboratory of Subtropical Silviculture(SKLSS-KF2023-08)

Provincial Natural Resources Fund(1908085QC140)

National Key R&D Program of China(2018YFD1000600)

出版年

2024

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

参考文献量115

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