Gapless genome assembly of azalea and multi-omics investigation into divergence between two species with distinct f lower color
作者机构：National Engineering Research Center of Tree Breeding and Ecological RestorationBeijing Advanced Innovation Center for Tree Breeding by Molecular DesignKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental PlantsMinistry of EducationCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China Department of Ecology and Environmental ScienceUmeåPlant Science CentreUmeåUniversitySE-90187 UmeåSweden Department of BioinformaticsOri(Shandong)Gene Science and Technology Co.Ltd.Weifang 261322China Department of Forest and Conservation SciencesFaculty of ForestryUniversity of British ColumbiaVancouverBCV6T 1Z4Canada Départment des Sciences du Bois et de la ForêtFacultéde Foresteriede Géographie et GéomatiqueUniversitéLavalQuébecQCG1V 0A6Canada State Key Laboratory of Systematic and Evolutionary BotanyInstitute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of SciencesBeijing 100049China
出 版 物：《Horticulture Research》 (园艺研究（英文）)
年 卷 期：2023年第10卷第1期
页 面：193-206页
核心收录：
学科分类：090706[农学-园林植物与观赏园艺] 0907[农学-林学] 09[农学]
基 金：This work was supported by grants from the Strategic Prior-ity Research Program,Chinese Academy of Sciences(Grant No.XDA23080000) Second Tibetan Plateau Scientific Expedition and Research(STEP)program(2019QZKK0502)
主 题：divergence yellow collective
摘 要：The genus Rhododendron(Ericaceae),with more than 1000 species highly diverse in f lower color,is providing distinct ornamental values and a model system for f lower color ***,we investigated the divergence between two parental species with different f lower color widely used for azalea *** genome assembly was generated for the yellow-f lowered azalea,Rhododendron *** genomics found recent proliferation of long terminal repeat retrotransposons(LTR-RTs),especially Gypsy,has resulted in a 125 Mb(19%)genome size increase in species-specific regions,and a significant amount of dispersed gene duplicates(13402)and pseudogenes(17437).Metabolomic assessment revealed that yellow f lower coloration is attributed to the dynamic changes of carotenoids/f lavonols biosynthesis and chlorophyll ***-ordered gene co-expression networks(TO-GCNs)and the comparison confirmed the metabolome and uncovered the specific gene regulatory changes underpinning the distinct f lower pigmentation.B3 and ERF TFs were found dominating the gene regulation of carotenoids/f lavonols characterized pigmentation in ***,while WRKY,ERF,WD40,C2H2,and NAC TFs collectively regulated the anthocyanins characterized pigmentation in the red-f lowered R *** study employed a multi-omics strategy in disentangling the complex divergence between two important azaleas and provided references for further functional genetics and molecular breeding.
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