发育约束是禾本科植物芒复制进化的基础。

IF 8.3 1区生物学 Q1 PLANT SCIENCES

New Phytologist Pub Date : 2024-11-18 DOI:10.1111/nph.20268

Erin Patterson, Dana R. MacGregor, Michelle M. Heeney, Joseph Gallagher, Devin O'Connor, Benedikt Nuesslein, Madelaine Elisabeth Bartlett

引用次数: 0

摘要

复制性状进化可以让我们深入了解生物多样性进化的内在机制。芒是复制进化的一个例子，它是禾本科植物花序中的一个器官。芒很可能与叶片同源。我们假设，芒之所以反复进化，是因为保守的叶片发育程序在进化过程中不断被激活和抑制，从而导致芒的反复出现和消失。为了评估我们的假设所产生的预测，我们使用了祖先状态估计、比较遗传学、解剖学和形态学来追踪芒的进化。我们发现，独立进化的有芒外稃在发育轨迹上有相似之处。此外，在两个独立演化出芒且芒形态各异的物种（Brachypodium distachyon 和 Alopecurus myosuroides）中，我们发现 YABBY 转录因子基因 DROOPING LEAF 的直向同源物是芒启动所必需的。我们对Brachypodium distachyon、Alopecurus myosuroides和Holcus lanatus的芒发育进行的分析还发现，有芒外稃区相对扩展的差异可以解释成熟期芒形态的多样性。我们的研究结果表明，发育保护是复制进化的基础，并能促进形态多样性的进化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Developmental constraint underlies the replicated evolution of grass awns

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Developmental constraint underlies the replicated evolution of grass awns

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来源期刊

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.