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引用次数: 0
摘要
茎是种子植物的主要器官之一,对植物的生存和农业都很重要。然而,由于许多物种缺乏明确的外部标志,与其他器官相比,茎的发育和进化过程研究不足。最近解决这些问题的方法,尤其是以 TALE 同源域超家族的 KNOX1 和 BLH 转录因子为重点的方法,通过连接以前积累的有关侧生器官调节因子的知识,开始揭示节和节间的模式化过程。化石记录在理解茎的进化过程中发挥了至关重要的作用。本综述旨在介绍茎是如何从祖先孢子叶轴演化而来的,并为今后理解这一难以捉摸但至关重要的器官的发育过程提供框架。
Evolution of the sporophyte shoot axis and functions of TALE HD transcription factors in stem development
The stem is one of the major organs in seed plants and is important for plant survival as well as in agriculture. However, due to the lack of clear external landmarks in many species, its developmental and evolutionary processes are understudied compared to other organs. Recent approaches tackling these problems, especially those focused on KNOX1 and BLH transcription factors belonging to the TALE homeodomain superfamily have started unveiling the patterning process of nodes and internodes by connecting previously accumulated knowledge on lateral organ regulators. Fossil records played crucial roles in understanding the evolutionary process of the stem. The aim of this review is to introduce how the stem evolved from ancestorial sporophyte axes and to provide frameworks for future efforts in understanding the developmental process of this elusive but pivotal organ.
期刊介绍:
Current Opinion in Plant Biology builds on Elsevier's reputation for excellence in scientific publishing and long-standing commitment to communicating high quality reproducible research. It is part of the Current Opinion and Research (CO+RE) suite of journals. All CO+RE journals leverage the Current Opinion legacy - of editorial excellence, high-impact, and global reach - to ensure they are a widely read resource that is integral to scientists' workflow.