Chromosome-level genome assembly of a parent species of widely cultivated azaleas

dc.contributor.authorYang, Fu-Sheng
dc.contributor.authorNie, Shuai
dc.contributor.authorLiu, Hui
dc.contributor.authorShi, Tian-Le
dc.contributor.authorTian, Xue-Chan
dc.contributor.authorZhou, Shan-Shan
dc.contributor.authorBao, Yu-Tao
dc.contributor.authorJia, Kai-Hua
dc.contributor.authorGuo, Jing-Fang
dc.contributor.authorZhao, Wei
dc.contributor.authorAn, Na
dc.contributor.authorZhang, Ren-Gang
dc.contributor.authorYun, Quan-Zheng
dc.contributor.authorWang, Xin-Zhu
dc.contributor.authorMannapperuma, Chanaka
dc.contributor.authorPorth, Ilga
dc.contributor.authorEl-Kassaby, Yousry Aly
dc.contributor.authorStreet, Nathaniel Robert
dc.contributor.authorWang, Xiao-Ru
dc.contributor.authorVan de Peer, Yves
dc.contributor.authorMao, Jian-Feng
dc.date.accessioned2021-07-05T09:58:13Z
dc.date.available2021-07-05T09:58:13Z
dc.date.issued2020-10-19
dc.description.abstractAzaleas (Ericaceae) comprise one of the most diverse ornamental plants, renowned for their cultural and economic importance. We present a chromosome-scale genome assembly for Rhododendron simsii, the primary ancestor of azalea cultivars. Genome analyses unveil the remnants of an ancient whole-genome duplication preceding the radiation of most Ericaceae, likely contributing to the genomic architecture of flowering time. Small-scale gene duplications contribute to the expansion of gene families involved in azalea pigment biosynthesis. We reconstruct entire metabolic pathways for anthocyanins and carotenoids and their potential regulatory networks by detailed analysis of time-ordered gene co-expression networks. MYB, bHLH, and WD40 transcription factors may collectively regulate anthocyanin accumulation in R. simsii, particularly at the initial stages of flower coloration, and with WRKY transcription factors controlling progressive flower coloring at later stages. This work provides a cornerstone for understanding the underlying genetics governing flower timing and coloration and could accelerate selective breeding in azalea.en_ZA
dc.description.departmentBiochemistryen_ZA
dc.description.departmentGeneticsen_ZA
dc.description.departmentMicrobiology and Plant Pathologyen_ZA
dc.description.librarianam2021en_ZA
dc.description.sponsorshipThe Second Tibetan Plateau Scientific Expedition and Research (STEP) program , Project of Construction of World Class Universities in Beijing Forestry University, the Fundamental Research Funds for the Central Universities in Beijing Forestry University, National Key R&D Program of China and Strategic Priority Research Program of the Chinese Academy of Sciences.en_ZA
dc.description.uriwww.nature.com/naturecommunicationsen_ZA
dc.identifier.citationYang, F.-S., Nie, S., Liu, H. et al. 2020, 'Chromosome-level genome assembly of a parent species of widely cultivated azaleas', Nature Communications, vol. 11, art. 5269, pp. 1-13.en_ZA
dc.identifier.issn2041-1723 (online)
dc.identifier.other10.1038/s41467-020-18771-4
dc.identifier.urihttp://hdl.handle.net/2263/80723
dc.language.isoenen_ZA
dc.publisherNature Publising Groupen_ZA
dc.rights© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License.en_ZA
dc.subjectAzaleas (Ericaceae)en_ZA
dc.subjectRhododendron simsiien_ZA
dc.subjectBreedingen_ZA
dc.subjectOrnamental plantsen_ZA
dc.titleChromosome-level genome assembly of a parent species of widely cultivated azaleasen_ZA
dc.typeArticleen_ZA

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