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The Formation of Sex Chromosomes in Silene latifolia and S. dioica Was Accompanied by Multiple Chromosomal Rearrangements
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SYSNO ASEP 0540561 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The Formation of Sex Chromosomes in Silene latifolia and S. dioica Was Accompanied by Multiple Chromosomal Rearrangements Author(s) Bačovský, Václav (BFU-R) ORCID
Čegan, Radim (BFU-R) RID, ORCID
Simonikova, D. (CZ)
Hřibová, E. (CZ)
Hobza, Roman (BFU-R) RID, ORCIDNumber of authors 5 Article number 205 Source Title Frontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
Roč. 11, FEB 28 2020 (2020)Number of pages 9 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords dosage compensation ; male-sterility ; y-chromosome ; plant ; evolution Subject RIV EF - Botanics OECD category Plant sciences, botany R&D Projects GJ19-02476Y GA ČR - Czech Science Foundation (CSF) GA18-06147S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support BFU-R - RVO:68081707 UT WOS 000524761000001 EID SCOPUS 85082556287 DOI 10.3389/fpls.2020.00205 Annotation The genus Silene includes a plethora of dioecious and gynodioecious species. Two species, Silene latifolia (white campion) and Silene dioica (red campion), are dioecious plants, having heteromorphic sex chromosomes with an XX/XY sex determination system. The X and Y chromosomes differ mainly in size, DNA content and posttranslational histone modifications. Although it is generally assumed that the sex chromosomes evolved from a single pair of autosomes, it is difficult to distinguish the ancestral pair of chromosomes in related gynodioecious and hermaphroditic plants. We designed an oligo painting probe enriched for X-linked scaffolds from currently available genomic data and used this probe on metaphase chromosomes of S. latifolia (2n = 24, XY), S. dioica (2n = 24, XY), and two gynodioecious species, S. vulgaris (2n = 24) and S. maritima (2n = 24). The X chromosome-specific oligo probe produces a signal specifically on the X and Y chromosomes in S. latifolia and S. dioica, mainly in the subtelomeric regions. Surprisingly, in S. vulgaris and S. maritima, the probe hybridized to three pairs of autosomes labeling their p-arms. This distribution suggests that sex chromosome evolution was accompanied by extensive chromosomal rearrangements in studied dioecious plants. Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2021 Electronic address https://www.frontiersin.org/articles/10.3389/fpls.2020.00205/full
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