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The honeysuckle genome provides insight into the molecular mechanism of carotenoid metabolism underlying dynamic flower coloration

Xiangdong Pu, Zhen Li (UGent) , Ya Tian, Ranran Gao, Lijun Hao, Yating Hu, Chunnian He, Wei Sun, Meimei Xu, Reuben J. Peters, et al.
(2020) NEW PHYTOLOGIST. 227(3). p.930-943
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Abstract
Lonicera japonica is a wide-spread member of the Caprifoliaceae (honeysuckle) family utilized in traditional medical practices. This twining vine honeysuckle is also a much-sought ornamental, in part due to its dynamic flower coloration, which changes from white to gold during development. The molecular mechanism underlying dynamic flower coloration in L. japonica was elucidated by integrating whole genome sequencing, transcriptomic analysis, and biochemical assays. Here, we report a chromosome-level genome assembly of L. japonica, comprising nine pseudo-chromosomes with a total size of 843.2 Mb. We also provide evidence for a whole genome duplication event in the lineage leading to L. japonica, which occurred after its divergence from Dipsacales and Asterales. Moreover, gene expression analysis not only revealed correlated expression of the relevant biosynthetic genes with carotenoid accumulation, but also suggested a role for carotenoid degradation in L. japonica's dynamic flower coloration. The variation of flower color is consistent with not only the observed carotenoid accumulation pattern, but also with the release of volatile apocarotenoids that presumably serve as pollinator attractants. Beyond novel insights into the evolution and dynamics of flower coloration, the high-quality L. japonica genome sequence also provides a foundation for molecular breeding to improve desired characteristics.
Keywords
Plant Science, Physiology

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MLA
Pu, Xiangdong, et al. “The Honeysuckle Genome Provides Insight into the Molecular Mechanism of Carotenoid Metabolism Underlying Dynamic Flower Coloration.” NEW PHYTOLOGIST, vol. 227, no. 3, 2020, pp. 930–43, doi:10.1111/nph.16552.
APA
Pu, X., Li, Z., Tian, Y., Gao, R., Hao, L., Hu, Y., … Song, J. (2020). The honeysuckle genome provides insight into the molecular mechanism of carotenoid metabolism underlying dynamic flower coloration. NEW PHYTOLOGIST, 227(3), 930–943. https://doi.org/10.1111/nph.16552
Chicago author-date
Pu, Xiangdong, Zhen Li, Ya Tian, Ranran Gao, Lijun Hao, Yating Hu, Chunnian He, et al. 2020. “The Honeysuckle Genome Provides Insight into the Molecular Mechanism of Carotenoid Metabolism Underlying Dynamic Flower Coloration.” NEW PHYTOLOGIST 227 (3): 930–43. https://doi.org/10.1111/nph.16552.
Chicago author-date (all authors)
Pu, Xiangdong, Zhen Li, Ya Tian, Ranran Gao, Lijun Hao, Yating Hu, Chunnian He, Wei Sun, Meimei Xu, Reuben J. Peters, Yves Van de Peer, Zhichao Xu, and Jingyuan Song. 2020. “The Honeysuckle Genome Provides Insight into the Molecular Mechanism of Carotenoid Metabolism Underlying Dynamic Flower Coloration.” NEW PHYTOLOGIST 227 (3): 930–943. doi:10.1111/nph.16552.
Vancouver
1.
Pu X, Li Z, Tian Y, Gao R, Hao L, Hu Y, et al. The honeysuckle genome provides insight into the molecular mechanism of carotenoid metabolism underlying dynamic flower coloration. NEW PHYTOLOGIST. 2020;227(3):930–43.
IEEE
[1]
X. Pu et al., “The honeysuckle genome provides insight into the molecular mechanism of carotenoid metabolism underlying dynamic flower coloration,” NEW PHYTOLOGIST, vol. 227, no. 3, pp. 930–943, 2020.
@article{8654705,
  abstract     = {Lonicera japonica is a wide-spread member of the Caprifoliaceae (honeysuckle) family utilized in traditional medical practices. This twining vine honeysuckle is also a much-sought ornamental, in part due to its dynamic flower coloration, which changes from white to gold during development. The molecular mechanism underlying dynamic flower coloration in L. japonica was elucidated by integrating whole genome sequencing, transcriptomic analysis, and biochemical assays. Here, we report a chromosome-level genome assembly of L. japonica, comprising nine pseudo-chromosomes with a total size of 843.2 Mb. We also provide evidence for a whole genome duplication event in the lineage leading to L. japonica, which occurred after its divergence from Dipsacales and Asterales. Moreover, gene expression analysis not only revealed correlated expression of the relevant biosynthetic genes with carotenoid accumulation, but also suggested a role for carotenoid degradation in L. japonica's dynamic flower coloration. The variation of flower color is consistent with not only the observed carotenoid accumulation pattern, but also with the release of volatile apocarotenoids that presumably serve as pollinator attractants. Beyond novel insights into the evolution and dynamics of flower coloration, the high-quality L. japonica genome sequence also provides a foundation for molecular breeding to improve desired characteristics.},
  author       = {Pu, Xiangdong and Li, Zhen and Tian, Ya and Gao, Ranran and Hao, Lijun and Hu, Yating and He, Chunnian and Sun, Wei and Xu, Meimei and Peters, Reuben J. and Van de Peer, Yves and Xu, Zhichao and Song, Jingyuan},
  issn         = {0028-646X},
  journal      = {NEW PHYTOLOGIST},
  keywords     = {Plant Science,Physiology},
  language     = {eng},
  number       = {3},
  pages        = {930--943},
  title        = {The honeysuckle genome provides insight into the molecular mechanism of carotenoid metabolism underlying dynamic flower coloration},
  url          = {http://dx.doi.org/10.1111/nph.16552},
  volume       = {227},
  year         = {2020},
}
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