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林强研究团队在《Science Advances》发表论文

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时间:2021-08-19  作者:LMB  来源:文本大小:【 |  | 】  【打印

题目: Seadragon genome analysis provides insights into its phenotype and sex determination locus

作者 Meng Qu, Yali Liu, Yanhong Zhang, Shiming Wan, Vydianathan Ravi, Geng Qin, Han Jiang, Xin Wang, Huixian Zhang, Bo Zhang, Zexia Gao, Ann Huysseune, Zhixin Zhang, Hao Zhang, Zelin Chen, Haiyan Yu, Yongli Wu, Lu Tang, Chunyan Li, Jia Zhong, Liming Ma, Fengling Wang, Hongkun Zheng, Jianping Yin, Paul Eckhard Witten, Axel Meyer, Byrappa Venkatesh, and Qiang Li

刊物Science Advances

年卷期页: 2021,7(34): eabg5196

摘要The iconic phenotype of seadragons includes leaf-like appendages, a toothless tubular mouth, and male pregnancy involving incubation of fertilized eggs on an open “brood patch.” We de novo–sequenced male and female genomes of the common seadragon (Phyllopteryx taeniolatus) and its closely related species, the alligator pipefish (Syngnathoides biaculeatus). Transcription profiles from an evolutionary novelty, the leaf-like appendages, show that a set of genes typically involved in fin development have been co-opted as well as an enrichment of transcripts for potential tissue repair and immune defense genes. The zebrafish mutants for scpp5, which is lost in all syngnathids, were found to lack or have deformed pharyngeal teeth, supporting the hypothesis that the loss of scpp5 has contributed to the loss of teeth in syngnathids. A putative sex–determining locus encoding a male-specific amhr2y gene shared by common seadragon and alligator pipefish was identified. 

 

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