叶片经济谱系的一个新维度:基因型之间关系的时间不稳定性

IF 8.3 1区 生物学 Q1 PLANT SCIENCES
New Phytologist Pub Date : 2024-10-18 DOI:10.1111/nph.20191
Pratima Pahadi, Jay Wason, Seanna Annis, Brian McGill, Yong-Jiang Zhang
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引用次数: 0

摘要

人们已经在许多不同的植物品系和不同的组织尺度上对叶片经济谱(LES)关系进行了研究。然而,LES 关系的时间稳定性在很大程度上还不为人所知。我们研究了在美国缅因州一个普通农场中半自然生长的两个野生蓝莓物种的 16 个基因型的叶片结构、光合作用和叶片养分,历时 4 年。不同基因型之间的 LES 性状-性状关系(协方差结构)并不总是在所有年份都能发现。野生蓝莓的性状综合征因多年来环境条件的变化而改变。我们的研究结果表明,LES 通常在不同基因型之间成立,但在时间上并不稳定,这强调了性状可塑性在应对不同年份环境条件波动方面的重要影响,以及时间维度在塑造功能性状和物种共存方面的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A new dimension of leaf economic spectrum: temporal instability of relationships among genotypes

  • Leaf economic spectrum (LES) relationships have been studied across many different plant lineages and at different organizational scales. However, the temporal stability of the LES relationships is largely unknown. We used the wild blueberry system with high genotypic diversity to test whether trait–trait relationships across genotypes demonstrate the same LES relationships found in the global database (GLOPNET) and whether they are stable across years.
  • We studied leaf structure, photosynthesis, and leaf nutrients for 16 genotypes of two wild blueberry species semi-naturally grown in a common farm in Maine, USA, across 4 yr.
  • We found substantial variation in leaf structure, physiology, and nutrient traits within and among genotypes, as well as across years in wild blueberries. The LES trait–trait relationships (covariance structure) across genotypes were not always found in all years. The trait syndrome of wild blueberries was shifted by changing environmental conditions over the years. Additionally, traits in 1 yr cannot be used to predict those of another year.
  • Our findings show that LES generally holds among genotypes but is temporally unstable, stressing the significant influence of trait plasticity in response to fluctuating environmental conditions across years, and the importance of temporal dimensions in shaping functional traits and species coexistence.

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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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