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Innovations and stepwise evolution of CBFs/DREB1s and their regulatory networks in angiosperms

文献类型： 外文期刊

作者： Nie, Yuqi 1 ; Guo, Liangyu 1 ; Cui, Fuqiang 1 ; Shen, Yirong 1 ; Ye, Xiaoxue 2 ; Deng, Deyin 1 ; Wang, Shuo 1 ; Zhu, Jianhua 3 ; Wu, Wenwu 1 ;

作者机构： 1.Zhejiang A&F Univ, Sch Forestry & Biotechnol, State Key Lab Subtrop Silviculture, Hangzhou 311300, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

3.Anhui Agr Univ, Sch Life Sci, Hefei 230036, Peoples R China

4.Univ Maryland, Dept Plant Sci & Landscape Architecture, College Pk, MD 20742 USA

关键词： CBF; DREB1; cold acclimation; global cooling; ice age; K-Pg boundary; paleotemperature; tandem duplication (TD); whole genome duplication (WGD)

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：9.106； 五年影响因子：8.241 ）

ISSN： 1672-9072

年卷期： 2022 年 64 卷 11 期

页码：

收录情况： SCI

摘要： The C-repeat binding factors/dehydration-responsive element binding protein 1s (CBFs/DREB1s) have been identified as major regulators of cold acclimation in many angiosperm plants. However, their origin and evolutionary process associated to cold responsiveness are still lacking. By integrating multi-omics data of genomes, transcriptomes, and CBFs/DREB1s genome-wide binding profiles, we unveil the origin and evolution of CBFs/DREB1s and their regulatory network. Gene collinearity and phylogeny analyses show that CBF/DREB1 is an innovation evolved from tandem duplication-derived DREB III gene. A subsequent event of epsilon-whole genome duplication led to two CBF/DREB1 archetypes (Clades I and II) in ancient angiosperms. In contrast to cold-insensitivity of Clade I and their parent DREB III genes, Clade II evolved a further innovation in cold-sensitive response and was stepwise expanded in eudicots and monocots by independent duplications. In geological time, the duplication events were mainly enriched around the Cretaceous-Paleogene (K-Pg) boundary and/or in the Late Cenozoic Ice Age, when the global average temperature significantly decreased. Consequently, the duplicated CBF/DREB1 genes contributed to the rewiring of CBFs/DREB1s-regulatory network for cold tolerance. Altogether, our results highlight an origin and convergent evolution of CBFs/DREB1s and their regulatory network probably for angiosperms adaptation to global cooling.

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