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Geographical variation in functional traits of leaves of Caryopteris mongholica and the role of climate.


ABSTRACT:

Background

Quantifying intra-specific variation in leaf functional traits along environmental gradients is important for understanding species' responses to climate change. In this study, we assessed the degree of among and within populations variation in leaf functional traits and explored leaf response to geographic and climate change using Caryopteris mongholica as material, which has a wide range of distribution environments.

Results

We selected 40 natural populations of C. mongholica, measured 8 leaf functional traits, analyzed the extent of trait variation among and within populations, and developed geographic and climatic models to explain trait variation between populations. Our results showed that the variation in leaf functional traits of C. mongholica was primarily lower within populations compared to among populations. Specifically, the leaf area (LA) exhibited higher variability both among and within populations, whereas leaf carbon content (LC) exhibited lower variation within populations but greater variation among populations. We observed a specific covariation pattern among traits and a strong linkage between morphological, economic, and mechanical traits. Increasing minimum temperature, precipitation of month, and seasonal precipitation differences all limited the growth and development of C. mongholica. However, it was observed that an increase in mean annual precipitation positively influenced the morphological development of its leaf.

Conclusions

These results demonstrate the response of intra-specific trait variation to the environment and provide valuable insights into the adaptation of intra-specific leaf functional traits under changing climatic conditions.

SUBMITTER: Yu X 

PROVIDER: S-EPMC10426221 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Publications

Geographical variation in functional traits of leaves of Caryopteris mongholica and the role of climate.

Yu Xiao X   Ji Ruoxuan R   Li Mingming M   Xia Xinli X   Yin Weilun W   Liu Chao C  

BMC plant biology 20230815 1


<h4>Background</h4>Quantifying intra-specific variation in leaf functional traits along environmental gradients is important for understanding species' responses to climate change. In this study, we assessed the degree of among and within populations variation in leaf functional traits and explored leaf response to geographic and climate change using Caryopteris mongholica as material, which has a wide range of distribution environments.<h4>Results</h4>We selected 40 natural populations of C. mo  ...[more]

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