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Integrated multiomic study on the evolution and natural variation of flavonoid biosynthesis in Apocynum venetum and Apocynum hendersonii
  • +10
  • Gang Gao,
  • Aminu Shehu Abubakar,
  • Jikang Chen,
  • P Chen,
  • K Chen,
  • Chunming Yu,
  • Xiaofei Wang,
  • Xiaojun Qiu,
  • Xiaoyu Huang,
  • Deyi Shao,
  • Yue Wang,
  • Yu Chen,
  • Aiguo Zhu
Gang Gao
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops

Corresponding Author:[email protected]

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Aminu Shehu Abubakar
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Jikang Chen
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Chunming Yu
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Xiaofei Wang
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Xiaojun Qiu
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Xiaoyu Huang
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Deyi Shao
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Yue Wang
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Yu Chen
Chinese Academy of Agricultural Sciences Institute of Bast Fiber Crops
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Abstract

The genus Apocynum contains perennial bast fiber plants that are spread worldwide. Apocynum species have great application prospect in salt-alkali regions, are rich in flavonoids, and possess medicinal significance. Here, we report the draft genomes of two species, Apocynum venetum and Apocynum hendersonii, and elucidate their evolutionary relationship. The high synteny and collinearity between A. venetum and A. hendersonii suggested that the two species experienced the same WDG event, indicating that divergence might be more recent. Comparative analysis revealed that ApF3H and differentially evolved ApUFGT genes are critical for determining natural variation in flavonoid biosynthesis between relatives. ApF3H-1 enhanced the total flavonoid content and promoted the antioxidant capacity of transformed plants compared to the wild-type plant. ApUFGT5 and 6 explained the diversification of flavonoids or their derivatives. These data provide biochemical insight and knowledge on the genetic regulation of flavonoid biosynthesis, supporting the adoption of these genes in breeding programs aimed at the multipurpose use of plants.