Evolution of sex-determination in dioecious plants: from active Y to X/A balance?
<p>Sex chromosomes in plants have been known for a century, but only recently have we begun to understand the mechanisms behind sex determination in dioecious plants. Here, we discuss evolution of sex determination, focusing on <em>Silene latifolia</em>, where evolution of...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Wiley
2023
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| _version_ | 1826311279427452928 |
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| author | Kazama, Y Kobayashi, T Filatov, DA |
| author_facet | Kazama, Y Kobayashi, T Filatov, DA |
| author_sort | Kazama, Y |
| collection | OXFORD |
| description | <p>Sex chromosomes in plants have been known for a century, but only recently have we begun to understand the mechanisms behind sex determination in dioecious plants. Here, we discuss evolution of sex determination, focusing on <em>Silene latifolia</em>, where evolution of separate sexes is consistent with the classic “two mutations” model—a loss of function male sterility mutation and a gain of function gynoecium suppression mutation, which turned an ancestral hermaphroditic population into separate males and females. Interestingly, the gynoecium suppression function in <em>S. latifolia</em> evolved via loss of function in at least two sex-linked genes and works via gene dosage balance between sex-linked, and autosomal genes. This system resembles X/A-ratio-based sex determination systems in <em>Drosophila</em> and <em>Rumex</em>, and could represent a steppingstone in the evolution of X/A-ratio-based sex determination from an active Y system.</p> |
| first_indexed | 2024-03-07T08:07:29Z |
| format | Journal article |
| id | oxford-uuid:02e74319-04ee-4fd0-84ea-57534200088a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T08:07:29Z |
| publishDate | 2023 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:02e74319-04ee-4fd0-84ea-57534200088a2023-11-08T13:51:59ZEvolution of sex-determination in dioecious plants: from active Y to X/A balance?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:02e74319-04ee-4fd0-84ea-57534200088aEnglishSymplectic ElementsWiley2023Kazama, YKobayashi, TFilatov, DA<p>Sex chromosomes in plants have been known for a century, but only recently have we begun to understand the mechanisms behind sex determination in dioecious plants. Here, we discuss evolution of sex determination, focusing on <em>Silene latifolia</em>, where evolution of separate sexes is consistent with the classic “two mutations” model—a loss of function male sterility mutation and a gain of function gynoecium suppression mutation, which turned an ancestral hermaphroditic population into separate males and females. Interestingly, the gynoecium suppression function in <em>S. latifolia</em> evolved via loss of function in at least two sex-linked genes and works via gene dosage balance between sex-linked, and autosomal genes. This system resembles X/A-ratio-based sex determination systems in <em>Drosophila</em> and <em>Rumex</em>, and could represent a steppingstone in the evolution of X/A-ratio-based sex determination from an active Y system.</p> |
| spellingShingle | Kazama, Y Kobayashi, T Filatov, DA Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title | Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title_full | Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title_fullStr | Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title_full_unstemmed | Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title_short | Evolution of sex-determination in dioecious plants: from active Y to X/A balance? |
| title_sort | evolution of sex determination in dioecious plants from active y to x a balance |
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