Accumulation of chloroplast DNA sequences on the Y chromosome of Silene latifolia

Eduard Kejnovsky, Zdenek Kubat, Roman Hobza, Martina Lengerova, Shusei Sato, Satoshi Tabata, Kiichi Fukui, Sachihiro Matsunaga, Boris Vyskot

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


Silene latifolia is a model dioecious plant with heteromorphic sex chromosomes. The Y chromosome is the largest in this species. Theoretical models propose an accumulation of repetitive DNA sequences in non-recombining parts of the Y chromosome. In this study, we isolated a BAC7H5 clone preferentially hybridizing to the Y chromosome of S. latifolia. Sequence analysis revealed that this BAC7H5 contains part of the chloroplast genome, indicating that these chloroplast sequences have accumulated on the Y chromosome and also may contribute to its large size. We constructed Y chromosome- and X chromosome-specific libraries and screened them to find Y- and/or X-linked copies of chloroplast sequences. Sequence analysis revealed higher divergence of a non-genic region of the chloroplast sequences located on the Y chromosome while genic regions tested showed only very low (max 0.9%) divergence from their chloroplast homologues.

Original languageEnglish
Pages (from-to)167-175
Number of pages9
Issue number1-3
Publication statusPublished - 2006 Sept


  • Accumulation
  • Chloroplast DNA
  • Silene latifolia
  • Y chromosome


Dive into the research topics of 'Accumulation of chloroplast DNA sequences on the Y chromosome of Silene latifolia'. Together they form a unique fingerprint.

Cite this