Sex chromosome evolution revealed by physical mapping of SIAP3X/Y in the dioecious plant Silene latifolia

DOI Web Site 被引用文献3件 参考文献46件
  • Nishiyama Rie
    RIKEN Plant Science Center
  • Ishii Kotaro
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo Research Fellow, Japan Society for the Promotion of Science
  • Kifune Etsuko
    Research Fellow, Japan Society for the Promotion of Science Department of Biological Sciences, Graduate School of Science, The University of Tokyo
  • Kazama Yusuke
    Nishina Center for Accelerator-Based Science, RIKEN
  • Nishihara Kiyoshi
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo Nishina Center for Accelerator-Based Science, RIKEN
  • Matsunaga Sachihiro
    Department of Biotechnology, Graduate School of Engineering, Osaka University
  • Shinozaki Kazuo
    RIKEN Plant Science Center
  • Kawano Shigeyuki
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo

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タイトル別名
  • Sex Chromosome Evolution Revealed by Physical Mapping of SlAP3X/Y in the Dioecious Plant Silene latifolia

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Sex-linked genetic markers of Silene latifolia were mapped to the sex chromosomes with the aim of analyzing their evolutionary origins. SlAP3X/Y has been particularly uncertain for years. Its X-counterpart has not been identified, and very few Y-deletion mutants delete SlAP3Y. In this study, we verified the sex chromosome-linkage of SlAP3X and SlAP3Y through cloning, sequencing, and fluorescent in situ hybridization (FISH). SlAP3X, spanning a region of 1.6 kb, consists of 6 exons and 5 introns. SlAP3Y has 7 exons and 6 introns, the second intron being particularly large (24.4 kb). SlAP3Y spans 31 kb in total. Their Harr-plot analysis and the chromosome positions indicated by FISH using their own probes support the hypothesis that the translocation of SlAP3X/Y has occurred on either chromosome.

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