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沙奥利尼亚:针叶树和芽植物之间的化石联系

Xin Wang¹, Li-Jun Chen²

¹State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.

Plants (Basel, Switzerland)

|August 10, 2024

概括

化石证据揭示了一种种子部分封闭的植物,这表明血管精子毛从支架上支着子种子的支架进化. 这一发现支持了开花植物gynoecia的多个进化途径.

科学领域:

植物学植物学
古植物学是古植物学.
进化生物学进化生物学

背景情况:

开花植物 (芽植物) 主导着地球的生态系统.
血管精子花的起源,特别是gynoecia,仍然是植物学中一个重要的未解答的问题.
缺乏具有部分封闭卵子的过渡化石阻碍了理解.

研究的目的:

为了调查血管的进化起源. gynoecia.
通过检查化石证据来探索血管精子的同质性.
为了解开花植物生殖结构的多样化的进化途径做出贡献.

主要方法:

一种化石植物的描述,表现出针叶和繁殖特征.
对化石种子形态的分析,特别是由一个延伸的支架部分封闭的分析.
与现存的体和血管进行了比较形态分析.

主要成果:

发现了一种具有针叶状特征的化石植物和一个单一的部分包裹的种子.
化石的形态学表明,一个骨可能与一个带着骨种子的骨相同.
这种解释与最近关于血管精子骨进化的假设一致.

结论:

血管精子基内西亚很可能通过多条不同的途径进化.
发现的化石为了解骨进化提供了关键证据.
这项研究挑战了传统的卡佩尔同质学的观点,并支持了花植物更复杂的进化历史.

关键词:

甲纪甲时期血管精子种子布拉克特是一个坚固的兄弟.卡尔佩尔 (Carpel) 是指一个木头.针叶树是一种树.同源性同质性是一致性.胎盘胎盘胎盘胎盘

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