YangNieLiuEtAl2020

Reference

Yang, F.-S., Nie, S., Liu, H., Shi, T.-L., Tian, X.-C., Zhou, S.-S., Bao, Y.-T., Jia, K.-H., Guo, J.-F., Zhao, W., An, N., Zhang, R.-G., Yun, Q.-Z., Wang, Xi.Z., Mannapperuma, C., Porth, I., El-Kassaby, Y.A., Street, N.R., Wang, X.-R., Van de Peer, Y., Mao, J.-F. (2020) Chromosome-level genome assembly of a parent species of widely cultivated azaleas. Nature Communications, 11(1):5269. (URL )

Abstract

Azaleas (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.

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@ARTICLE { YangNieLiuEtAl2020,
    AUTHOR = { Yang, F.-S. and Nie, S. and Liu, H. and Shi, T.-L. and Tian, X.-C. and Zhou, S.-S. and Bao, Y.-T. and Jia, K.-H. and Guo, J.-F. and Zhao, W. and An, N. and Zhang, R.-G. and Yun, Q.-Z. and Wang, Xi.Z. and Mannapperuma, C. and Porth, I. and El-Kassaby, Y.A. and Street, N.R. and Wang, X.-R. and Van de Peer, Y. and Mao, J.-F. },
    JOURNAL = { Nature Communications },
    TITLE = { Chromosome-level genome assembly of a parent species of widely cultivated azaleas },
    YEAR = { 2020 },
    ISSN = { 2041-1723 },
    NUMBER = { 1 },
    PAGES = { 5269 },
    VOLUME = { 11 },
    ABSTRACT = { Azaleas (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. },
    DOI = { 10.1038/s41467-020-18771-4 },
    OWNER = { Luc },
    REFID = { Yang2020 },
    URL = { https://doi.org/10.1038/s41467-020-18771-4 },
}

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