Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit.
Background and Aims Chromosome evolution leads to hybrid dysfunction and recombination patterns and has thus been proposed as a major driver of diversification in all branches of the tree of life, including flowering plants. In this study we used the genus Linum (flax species) to evaluate the effect...
| Autores: | ; ; ; ; ; ; |
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| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/155339 |
| Acceso en línea: | https://hdl.handle.net/11441/155339 https://doi.org/10.1093/aob/mcad139 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Breeding system diversification dysploidy flax heterostyly Linaceae polyploidy |
| _version_ | 1878733566018322432 |
|---|---|
| author | Valdés Florido, Ana |
| author2 | Tan, Lu Maguilla Salado, Enrique Simón Porcar, Violeta Zhou, Yong-Hong Arroyo Marín, Juan Escudero Lirio, Marcial |
| author2_role | author author author author author author |
| author_browse | Arroyo Marín, Juan Escudero Lirio, Marcial Maguilla Salado, Enrique Simón Porcar, Violeta Tan, Lu Valdés Florido, Ana Zhou, Yong-Hong |
| author_facet | Valdés Florido, Ana Tan, Lu Maguilla Salado, Enrique Simón Porcar, Violeta Zhou, Yong-Hong Arroyo Marín, Juan Escudero Lirio, Marcial |
| author_role | author |
| collection | idUS. Depósito de Investigación de la Universidad de Sevilla |
| description | Background and Aims Chromosome evolution leads to hybrid dysfunction and recombination patterns and has thus been proposed as a major driver of diversification in all branches of the tree of life, including flowering plants. In this study we used the genus Linum (flax species) to evaluate the effects of chromosomal evolution on diversification rates and on traits that are important for sexual reproduction. Linum is a useful study group because it has considerable reproductive polymorphism (heterostyly) and chromosomal variation (n = 6–36) and a complex pattern of biogeographical distribution. Methods We tested several traditional hypotheses of chromosomal evolution. We analysed changes in chromosome number across the phylogenetic tree (ChromEvol model) in combination with diversification rates (ChromoSSE model), biogeographical distribution, heterostyly and habit (ChromePlus model). Key Results Chromosome number evolved across the Linum phylogeny from an estimated ancestral chromosome number of n = 9. While there were few apparent incidences of cladogenesis through chromosome evolution, we inferred up to five chromosomal speciation events. Chromosome evolution was not related to heterostyly but did show significant relationships with habit and geographical range. Polyploidy was negatively correlated with perennial habit, as expected from the relative commonness of perennial woodiness and absence of perennial clonality in the genus. The colonization of new areas was linked to genome rearrangements (polyploidy and dysploidy), which could be associated with speciation events during the colonization process. Conclusions Chromosome evolution is a key trait in some clades of the Linum phylogeny. Chromosome evolution directly impacts speciation and indirectly influences biogeographical processes and important plant traits. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_58b2ca990ff8d5a76efbcbde3d5837db |
| institution | Universidad de Sevilla (US) |
| instname_str | Universidad de Sevilla (US) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:idus.us.es:11441/155339 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| reponame_str | idUS. Depósito de Investigación de la Universidad de Sevilla |
| spelling | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. Valdés Florido, Ana Tan, Lu Maguilla Salado, Enrique Simón Porcar, Violeta Zhou, Yong-Hong Arroyo Marín, Juan Escudero Lirio, Marcial Breeding system diversification dysploidy flax heterostyly Linaceae polyploidy Background and Aims Chromosome evolution leads to hybrid dysfunction and recombination patterns and has thus been proposed as a major driver of diversification in all branches of the tree of life, including flowering plants. In this study we used the genus Linum (flax species) to evaluate the effects of chromosomal evolution on diversification rates and on traits that are important for sexual reproduction. Linum is a useful study group because it has considerable reproductive polymorphism (heterostyly) and chromosomal variation (n = 6–36) and a complex pattern of biogeographical distribution. Methods We tested several traditional hypotheses of chromosomal evolution. We analysed changes in chromosome number across the phylogenetic tree (ChromEvol model) in combination with diversification rates (ChromoSSE model), biogeographical distribution, heterostyly and habit (ChromePlus model). Key Results Chromosome number evolved across the Linum phylogeny from an estimated ancestral chromosome number of n = 9. While there were few apparent incidences of cladogenesis through chromosome evolution, we inferred up to five chromosomal speciation events. Chromosome evolution was not related to heterostyly but did show significant relationships with habit and geographical range. Polyploidy was negatively correlated with perennial habit, as expected from the relative commonness of perennial woodiness and absence of perennial clonality in the genus. The colonization of new areas was linked to genome rearrangements (polyploidy and dysploidy), which could be associated with speciation events during the colonization process. Conclusions Chromosome evolution is a key trait in some clades of the Linum phylogeny. Chromosome evolution directly impacts speciation and indirectly influences biogeographical processes and important plant traits. Ministerio de Ciencia e Innovación del Gobierno de España (MICIN) - PGC2018-099608-B-I00, PID2021-122715NB-I00 y PRE2019-087452 European Union’s Horizon 2020 nº 897890 FLAXMaTE Oxford University Press https://hdl.handle.net/11441/155339 https://doi.org/10.1093/aob/mcad139 |
| spellingShingle | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. Valdés Florido, Ana Breeding system diversification dysploidy flax heterostyly Linaceae polyploidy |
| status_str | publishedVersion |
| title | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| title_full | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| title_fullStr | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| title_full_unstemmed | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| title_short | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| title_sort | Drivers of diversification in Linum (Linaceae) by means of chromosome evolution: correlations with biogeography, breeding system and habit. |
| topic | Breeding system diversification dysploidy flax heterostyly Linaceae polyploidy |
| topic_facet | Breeding system diversification dysploidy flax heterostyly Linaceae polyploidy |
| url | https://hdl.handle.net/11441/155339 https://doi.org/10.1093/aob/mcad139 |