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相对转录组学和基因表达差异与Argyranthemum的同质杂交物种化相关

Oliver W White¹, Alfredo Reyes-Betancort², Mark A Carine¹

¹Algae, Fungi and Plants Division, Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK.

G3 (Bethesda, Md.)

|July 21, 2023

概括

基因表达的变化是通过杂交形成新植物物种的关键. 这项研究揭示了混合物物种适应类似环境的融合表达模式.

科学领域:

进化生物学进化生物学
基因组学就是基因组学.
植物规格植物规格

背景情况:

生态隔离是物种化的一个重要因素,特别是在同杂交物种中.
不同和跨越性基因表达在物种化中的作用仍未得到充分研究.
了解基因表达对于阐明杂交物种化的机制至关重要.

研究的目的:

研究两种同质杂交植物物种Argyranthemum sundingii和A. lemsii的起源和进化过程中的基因表达变化.
为了比较不同转录基因数据分析管道的有效性.
识别与生态适应和物种化相关的基因表达模式.

主要方法:

在两个杂交物种和两个亲属Argyranthemum物种中使用了比较转录学.
评估了五种不同的数据汇集和基因表达分析管道.
选择了一个最佳的管道来识别种类之间差异表达的转录 (DE).

主要成果:

在转录基因管道中观察到显著的偏见和解释差异.
在父母物种及其同质杂交物种之间确定了差异表达的转录.
许多DE转录物具有与生态适应相关的合理功能,这表明它们在生态物种化中的作用.
独立衍生的同质杂交物种表现出融合表达表现型,可能是由类似的息地适应驱动的.

结论:

基因表达在同质杂交物种的生态物种化中起着至关重要的作用.
尽管存在方法上的挑战,但比较性转录学可以揭示关键的进化见解.
融合基因表达是独立进化的杂交物种占据类似生态的适应的基础.

关键词:

阿尔吉兰塞姆 (Argyranthemum) 是一种的植物.同类杂交的杂交物种化.混合化混合化混合化种类的变化种类的变化翻译学翻译学翻译学翻译学

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