刺槐科刺槐亚科高变异性状的进化模式

IF 1.1 4区 生物学 Q3 PLANT SCIENCES
Jiancheng Wang, Honglan Yang, T. Bozorov, D. Albach, Daoyuan Zhang
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引用次数: 0

摘要

性状和性状组合的模式反映了生物体如何应对环境。由于变异程度不同,性状在适应环境变化过程中表现也不同。在这项研究中,我们重点研究了干旱地区占主导地位的一个分类单元——Zygophylloideae亚科。我们分析了功能性状的进化模式,以阐明性状属性对生态位变化的影响。性状的系统发育信号分析结果表明,株高等数量性状在进化上并不保守。系统发育回归指出,在系统发育背景下,环境因素和某些性状存在协同变化。这些特征可以更容易地满足不同环境的要求,可能是因为它们的高度可变性。因此,Zygophylloideae亚科中的物种在一些表型空间中表现出聚类。因此,性状的适应性进化减少了相关环境因素对物种的生态位限制。对Zygophylloideae亚科功能性状的进化分析证明,性状的高变异性允许在进化过程中根据相关的环境因素进行微调,并促进生态位的变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evolutionary Pattern of High Variation Traits in Subfamily Zygophylloideae (Zygophyllaceae)
Patterns in traits and trait combinations reflect how organisms cope with their environment. Owing to different degrees of variability, the performance of traits varies during adaption to the changing environment. In this study, we focused on a taxon dominant in arid regions – the subfamily Zygophylloideae. We analyzed the evolutionary patterns of functional traits to clarify the impact of trait attributes on niche shifts. The results of phylogenetic signal analysis of traits revealed that quantitative traits, such as plant height, were not evolutionarily conserved. Phylogenetic regression pointed out that there are synergistic changes in environmental factors and in some traits within a phylogenetic context. These traits can meet the requirements of different environments more easily, possibly owing to their high variability. As a result, species in the subfamily Zygophylloideae showed clustering in some phenotypic spaces. Thus, the adaptive evolution of traits reduced niche restrictions of related environmental factors on species. The evolutionary analysis of functional traits in subfamily Zygophylloideae proved that high variability of traits allows fine-tuning according to the related environmental factors during the evolutionary process and promotes niche shifts.
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来源期刊
CiteScore
2.00
自引率
10.00%
发文量
18
审稿时长
1 months
期刊介绍: The journal has been published since 1923 and offers Open Access publication of original research papers, short communications, and reviews in all areas of plant science, including evolution, ecology, genetics, plant structure and development, physiology and biochemistry.
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