Geographical variation and the role of climate in leaf traits of a relict tree species across its distribution in China
文献类型：期刊论文
| 作者 | Franklin, S. B.1; Meng, H.2,3; Jiang, M.2; Wei, X.2; Wu, H.2,3 |
| 刊名 | PLANT BIOLOGY
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 19期号:4页码:552-561 |
| 关键词 | Adaptation local-regional scale relict species riparian areas trait variation |
| ISSN号 | 1435-8603 |
| DOI | 10.1111/plb.12564 |
| 英文摘要 | Intraspecific trait variation and trait-climate relationships are crucial for understanding a species' response to climate change. However, these phenomena have rarely been studied for tree species. Euptelea pleiospermum is a relict tree species with a wide distribution in China that offers a novel opportunity to examine such relationships. Here, we measured 13 leaf traits of E.pleiospermum in 20 sites across its natural distribution in China. We investigated the extent of trait variation at local and regional scales, and developed geographic and climate models to explain trait variation at the regional scale. We documented intraspecific trait variation among leaf traits of E.pleiospermum at local and regional scales. Five traits exhibited relatively high trait variation: leaf area, leaf density and three leaf economic traits (leaf dry matter content, specific leaf area [SLA] and leaf phosphorus concentration). Significant trait-geography correlations were mediated by local climate. Most leaf trait variation could be explained (from 24% to 64%) by geographic or climate variables, except leaf width, leaf thickness, leaf dry matter content and leaf length-width ratio. Latitude and temperature were the strongest predictors of trait variation throughout the distribution of E.pleiospermum in China, and temperature explained more leaf trait variation than precipitation. In particular, we showed that leaves had longer petiole lengths, higher SLA and lower densities in northern E.pleiospermum populations. We suggest that northern E.pleiospermum populations are adapting to higher latitudinal environments via high growth rate (higher SLA) and low construction investment strategies (lower leaf densities), benefitting northern migration. Overall, we demonstrate that intraspecific trait variation reflects E.pleiospermum response to the local environment. We call for consideration of intraspecific trait variation to examine specific climate response questions. In addition, provenance experiments using widely distributed species are needed to separate trait variation resulting from genetic differentiation and plastic responses to environmental change. |
| 资助项目 | National Natural Science Foundation of China[31270562] ; National Natural Science Foundation of China[31470515] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2014314] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000403676500007 |
| 出版者 | WILEY |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1344]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Jiang, M. |
| 作者单位 | 1.Univ Northern Colorado, Dept Biol Sci, Greeley, CO USA 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Franklin, S. B.,Meng, H.,Jiang, M.,et al. Geographical variation and the role of climate in leaf traits of a relict tree species across its distribution in China[J]. PLANT BIOLOGY,2017,19(4):552-561. |
| APA | Franklin, S. B.,Meng, H.,Jiang, M.,Wei, X.,&Wu, H..(2017).Geographical variation and the role of climate in leaf traits of a relict tree species across its distribution in China.PLANT BIOLOGY,19(4),552-561. |
| MLA | Franklin, S. B.,et al."Geographical variation and the role of climate in leaf traits of a relict tree species across its distribution in China".PLANT BIOLOGY 19.4(2017):552-561. |
入库方式： OAI收割
来源：武汉植物园
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