Collaborative Proposal: MSB-ENSA: Forest function from genes to canopies: disentangling the fine scale spatio-temporal variation in gene expression and tree growth

合作提案：MSB-ENSA：从基因到冠层的森林功能：解开基因表达和树木生长的精细尺度时空变化

基本信息

批准号：
2141836
负责人：
Nathan Swenson
金额：
$ 67.79万
依托单位：
University of Notre Dame
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-06-01 至 2023-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2141836&HistoricalAwards=false
关键词：
Collaborative Proposal MSB ENSA Forest

项目摘要

Forests play a key role in regulating climate due to their ability absorb and store CO2 from the atmosphere. While often treated as a whole, the properties of forests are the aggregated outcome of processes happening on the level of thousands of individual trees. Individual trees within and between species in a forest vary in their physiological and growth response to the environment. Quantifying this variation is critical for understanding how forests regulate the carbon cycle and therefore for improving models that project how forests will respond to future fluctuations in climate. The present research project uses cutting edge genetic technology coupled with detailed measurements of individual tree growth and physiology to address these outstanding grand challenges in forest biology. Forested ecosystems are key players in the global carbon cycle. A grand challenge for those investigating current and projecting future forest functioning is linking processes occurring at the level of a leaf to those occurring at the level of a forest. Critical to these efforts is an understanding of where variation exists and the degree to which knowing that information improves projections. Individuals interact with their environments via their phenotypes and the resulting performance ultimately scales up to provide emergent ecosystem-level properties. Thus, acute and chronic changes to the environment are inherently an individual-level phenomenon. Rich assays of leaf level functioning and linkages of such information to individual tree and whole forest carbon flux are rare in tree ecology due to logistical constraints and a focus on a handful of leaf properties. The present project assays leaf level functioning throughout several growing seasons through the quantification of leaf physiological traits and gene expression. The sampling is performed at two NEON sites where significant infrastructure exists allowing us to link these leaf level properties to forest scale measures of carbon flux and the environment.

森林由于能够吸收和储存大气中的二氧化碳，因此在调节气候方面发挥着关键作用。虽然森林的特性通常被视为一个整体，但它是数千棵个体树木发生过程的聚合结果。森林中物种内部和物种之间的个体树木对环境的生理和生长反应各不相同。量化这种变化对于了解森林如何调节碳循环至关重要，从而改进预测森林如何应对未来气候波动的模型。目前的研究项目使用尖端的遗传技术以及对单棵树木生长和生理学的详细测量来解决森林生物学中这些突出的巨大挑战。森林生态系统是全球碳循环的关键参与者。对于那些调查当前和预测未来森林功能的人来说，一个巨大的挑战是将发生在叶子层面的过程与发生在森林层面的过程联系起来。这些努力的关键是了解哪里存在差异以及了解信息可以在多大程度上改善预测。个体通过其表型与环境相互作用，最终产生的性能会扩大以提供新兴的生态系统级属性。因此，环境的急性和慢性变化本质上是一种个体层面的现象。由于后勤限制和对少数叶子特性的关注，对叶水平功能的丰富分析以及此类信息与单棵树和整个森林碳通量的联系在树木生态学中很少见。本项目通过量化叶片生理特征和基因表达来分析多个生长季节中叶片水平的功能。采样在两个 NEON 站点进行，那里拥有重要的基础设施，使我们能够将这些叶级特性与碳通量和环境的森林规模测量联系起来。

项目成果

期刊论文数量（4）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Strategies of tolerance reflected in two North American maple genomes

两个北美枫树基因组反映的耐受策略

DOI：
10.1111/tpj.15657
发表时间：
2022-02
期刊：
The Plant Journal
影响因子：
0
作者：
McEvoy, Susan L.;Sezen, U. Uzay;Trouern‐Trend, Alexander;McMahon, Sean M.;Schaberg, Paul G.;Yang, Jie;Wegrzyn, Jill L.;Swenson, Nathan G.
通讯作者：
Swenson, Nathan G.

On the modelling of tropical tree growth: the importance of intra-specific trait variation, non-linear functions and phenotypic integration

热带树木生长建模：种内性状变异、非线性函数和表型整合的重要性

DOI：
10.1093/aob/mcaa085
发表时间：
2020-05
期刊：
Annals of Botany
影响因子：
4.2
作者：
Yang, Jie;Song, Xiaoyang;Cao, Min;Deng, Xiaobao;Zhang, Wenfu;Yang, Xiaofei;Swenson, Nathan G
通讯作者：
Swenson, Nathan G

Towards linking species traits to demography and assembly in diverse tree communities: Revisiting the importance of size and allocation

将物种特征与不同树木群落的人口统计和聚集联系起来：重新审视规模和分配的重要性