Evolution of sex determination and heterogamety changes in section Otites of the genus Silene
| Autor: | Boris Vyskot, Jitka Zluvova, Viera Kovacova, Roman Gogela, Jan Safar, Roman Hobza, Patrik Cangren, Bengt Oxelman, Deborah Charlesworth, Veronika Balounova, Roberta Bergero, Bohuslav Janousek, Radim Cegan |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Evolution of sexual reproduction Genetic Linkage lcsh:Medicine Chromosomes Plant Article 03 medical and health sciences 0302 clinical medicine Gene mapping Genus lcsh:Science Silene Phylogeny Multidisciplinary Autosome biology Phylogenetic tree lcsh:R Chromosome Bayes Theorem biology.organism_classification Otites 030104 developmental biology Evolutionary biology lcsh:Q Subgenus 030217 neurology & neurosurgery |
| Zdroj: | Balounova, V, Gogela, R, Cegan, R, Cangren, P, Zluvova, J, Safar, J, Kovacova, V, Bergero, R, Hobza, R, Vyskot, B, Oxelman, B, Charlesworth, D & Janousek, B 2019, ' Evolution of sex determination and heterogamety changes in section Otites of the genus Silene ', Scientific Reports, vol. 9, no. 1, 1045 . https://doi.org/10.1038/s41598-018-37412-x Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-13 (2019) |
| DOI: | 10.1101/325068 |
| Popis: | Switches in heterogamety are known to occur in both animals and plants. Although plant sex determination systems probably often evolved more recently than those in several well-studied animals, including mammals, and have had less time for switches to occur, we previously detected a switch in heterogamety in the plant genus Silene: section Otites has both female and male heterogamety, whereas S. latifolia and its close relatives, in a different section of the genus, Melandrium (subgenus Behenantha), all have male heterogamety. Here we analyse the evolution of sex chromosomes in section Otites, which is estimated to have evolved only about 0.55 MYA. Our study confirms female heterogamety in S. otites and newly reveals female heterogamety in S. borysthenica. Sequence analyses and genetic mapping show that the sex-linked regions of these two species are the same, but the region in S. colpophylla, a close relative with male heterogamety, is different. The sex chromosome pairs of S. colpophylla and S. otites each correspond to an autosome of the other species, and both differ from the XY pair in S. latifolia. Silene section Otites species are suitable for detailed studies of the events involved in such changes, and our phylogenetic analysis suggests a possible change from female to male heterogamety within this section. Our analyses suggest a possibility that has so far not been considered, change in heterogamety through hybridization, in which a male-determining chromosome from one species is introgressed into another one, and over-rides its previous sex-determining system. |
| Databáze: | OpenAIRE |
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