文献类型：期刊文献

英文题名：Transcriptomic responses to drought stress among natural populations provide insights into local adaptation of weeping forsythia

作者：Li, Yong[1] Shi, Long-Chen[1] Pei, Nan-Cai[2] Cushman, Samuel A.[3] Si, Yu-Tao[1]

第一作者：Li, Yong

通信作者：Li, Y[1];Pei, NC[2]

机构：[1]Henan Agr Univ, Coll Landscape & Art, Innovat Platform Mol Biol, Zhengzhou, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Peoples R China;[3]US Forest Serv, Rocky Mt Res Stn, 2500 S Pine Knoll Dr, Flagstaff, AZ USA

年份：2021

卷号：21

期号：1

外文期刊名：BMC PLANT BIOLOGY

收录：;Scopus(收录号：2-s2.0-85108120816);WOS:【SCI-EXPANDED(收录号:WOS:000664523300002)】；

基金：The funders had no role in the experiment design, data analysis, decision to publish or preparation of the manuscript. The authors acknowledge the funding from the National Natural Science Foundation of China (31770225, 31570594), Henan Science and Technology Project (202102110077), and Henan Agricultural University Science & Technology Innovation Fund (KJCX2016A2).

语种：英文

外文关键词：Climate change; Drought stress; Local adaptation; RNA-seq; Transcriptome; Weeping forsythia

摘要：Background Understanding the genetic mechanisms of local adaptation is an important emerging topic in molecular ecology and evolutionary biology. Results Here, we identify the physiological changes and differential expression of genes among different weeping forsythia populations under drought stress in common garden experiments. Physiological results showed that HBWZ might have higher drought tolerance among four populations. RNA-seq results showed that significant differential expression in the genes responding to the synthesis of flavonoids, aromatic substances, aromatic amino acids, oxidation-reduction process, and transmembrane transport occured among four populations. By further reanalysis of results of previous studies, sequence differentiation was found in the genes related to the synthesis of aromatic substances among different weeping forsythia populations. Conclusions Overall, our study supports the hypothesis that the dual differentiation in gene efficiency and expression increases among populations in response to heterogeneous environments and is an important evolutionary process of local adaptation. Here, we proposed a new working model of local adaptation of weeping forsythia populations under different intensities of drought stress, which provides new insights for understanding the genetic mechanisms of local adaptation for non-model species.