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独特的形态基础和重复的进化起源的penstemon的个性化花朵

Trinity H Depatie¹, Carolyn A Wessinger¹

¹Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, 29208, SC, USA.

American journal of botany

|July 31, 2025

概括

封闭的人格花在Penstemon进化了多次,从形态上不同于龙. 在Penstemon的这种快速进化表明新的突变或预先存在的变异作为遗传来源.

科学领域:

进化生物学进化生物学
植物形态学植物形态学
人类遗传学是一个学科.

背景情况:

适应性辐射驱动着各种植物系中新鲜的花特征的快速演变.
封闭的人格花,复杂的形态学,是低研究超越snapdragons.
潘斯泰蒙物种表现出多样化的花形式,为研究复杂特征演变提供了一个模型.

研究的目的:

调查Penstemon中封闭的人格花的形态基础和进化历史.
为了确定Penstemon人格花的植物遗传起源和潜在的内进事件.

主要方法:

描述了13个Penstemon物种的花形态.
使用族系学数据推断出族系学关系.
用于评估基因流动的内进化类基因组测试被采用.

主要成果:

笔茎人格花通过深腹叶来阻花管,与龙形态不同.
遗传学分析表明,在Penstemon中,人形花至少有两个独立的起源.
不完整的血统排序和内向导致了族系学不一致,但在人格血统之间发现的最近内向很少.

结论:

与龙相比,Penstemon人格花具有独特的形态基础.
多个独立和快速的进化事件导致了Penstemon的鲜花.
这些反复发生的进化转变的遗传变异可能来自新突变或先前存在的变异.

关键词:

在Penstemon上使用.这是Plantaginaceae的植物.花的形态学花的形态学不完整的血统排序不完整的血统排序这是一个内进的进攻.个性化花朵花朵的花朵人类基因组学是什么?重复的进化是重复的进化.

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