Autopolyploidy and ecological divergence: a transcriptomic approach in the Dianthus broteri complex

Autopolyploidy plays a significant role in plant speciation, especially in sympatry. To reduce competitive interactions between different cytotypes, changes in the composition of floral scents among cytotypes can facilitate reproductive isolation. These alterations in scent profiles are influenced by processes such as gene duplication and both pre-transcriptional and post-transcriptional regulations.The objective of this project is to gain a deeper understanding of ecological divergence resulting from autopolyploidy within the Dianthus broteri Boiss. & Reuter complex (Caryophyllaceae). This will be achieved through a transcriptomic approach, analyzing differences in gene expression between cytotypes with a focus on scent production.

同源多倍体（autopolyploidy）在植物物种形成过程中，尤其是同域分布条件下，发挥着至关重要的作用。为缓解不同细胞型间的竞争互作，各细胞型间花香组分的组成变化可促进生殖隔离的形成。花香谱的此类改变受基因重复、转录前及转录后调控等多种生物学过程的影响。本项目旨在深入解析布鲁特石竹复合类群（Dianthus broteri Boiss. & Reuter，石竹科Caryophyllaceae）内由同源多倍体引发的生态分化，将通过转录组学（transcriptomic）方法，分析不同细胞型间的基因表达差异，重点聚焦于花香合成相关的基因表达。