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Bian, Chao; Hu, Yinchang; Ravi, Vydianathan; Kuznetsova, Inna S.; Shen, Xueyan; Mu, Xidong; Sun, Ying; You, Xinxin; Li, Jia; Li, Xiaofeng; Qiu, Ying; Tay, Boon-Hui; Thevasagayam, Natascha May; Komissarov, Aleksey S.; Trifonov, Vladimir; Kabilov, Marsel; Tupikin, Alexey; Luo, Jianren; Liu, Yi; Song, Hongmei; Liu, Chao; Wang, Xuejie; Gu, Dangen; Yang, Yexin; [...]

The Asian arowana (Scleropages formosus) genome provides new insights into the evolution of an early lineage of teleosts

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  • Media type: E-Article
  • Title: The Asian arowana (Scleropages formosus) genome provides new insights into the evolution of an early lineage of teleosts
  • Contributor: Bian, Chao; Hu, Yinchang; Ravi, Vydianathan; Kuznetsova, Inna S.; Shen, Xueyan; Mu, Xidong; Sun, Ying; You, Xinxin; Li, Jia; Li, Xiaofeng; Qiu, Ying; Tay, Boon-Hui; Thevasagayam, Natascha May; Komissarov, Aleksey S.; Trifonov, Vladimir; Kabilov, Marsel; Tupikin, Alexey; Luo, Jianren; Liu, Yi; Song, Hongmei; Liu, Chao; Wang, Xuejie; Gu, Dangen; Yang, Yexin; [...]
  • imprint: Springer Science and Business Media LLC, 2016
  • Published in: Scientific Reports
  • Language: English
  • DOI: 10.1038/srep24501
  • ISSN: 2045-2322
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:p>The Asian arowana (<jats:italic>Scleropages formosus</jats:italic>), one of the world’s most expensive cultivated ornamental fishes, is an endangered species. It represents an ancient lineage of teleosts: the Osteoglossomorpha. Here, we provide a high-quality chromosome-level reference genome of a female golden-variety arowana using a combination of deep shotgun sequencing and high-resolution linkage mapping. In addition, we have also generated two draft genome assemblies for the red and green varieties. Phylogenomic analysis supports a sister group relationship between Osteoglossomorpha (bonytongues) and Elopomorpha (eels and relatives), with the two clades together forming a sister group of Clupeocephala which includes all the remaining teleosts. The arowana genome retains the full complement of eight Hox clusters unlike the African butterfly fish (<jats:italic>Pantodon buchholzi</jats:italic>), another bonytongue fish, which possess only five Hox clusters. Differential gene expression among three varieties provides insights into the genetic basis of colour variation. A potential heterogametic sex chromosome is identified in the female arowana karyotype, suggesting that the sex is determined by a ZW/ZZ sex chromosomal system. The high-quality reference genome of the golden arowana and the draft assemblies of the red and green varieties are valuable resources for understanding the biology, adaptation and behaviour of Asian arowanas.</jats:p>
  • Access State: Open Access