A flat petal as ancestral state for Ranunculaceae
Ranunculaceae comprise ca. 2,500 species (ca. 55 genera) that display a broad range of floral diversity, particularly at the level of the perianth. Petals, when present, are often referred to as “elaborate” because they have a complex morphology. In addition, the petals usually produce and store nec...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-09-01
|
| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.961906/full |
| _version_ | 1818062553210683392 |
|---|---|
| author | Pauline Delpeuch Pauline Delpeuch Florian Jabbour Catherine Damerval Jürg Schönenberger Susanne Pamperl Maxime Rome Sophie Nadot |
| author_facet | Pauline Delpeuch Pauline Delpeuch Florian Jabbour Catherine Damerval Jürg Schönenberger Susanne Pamperl Maxime Rome Sophie Nadot |
| author_sort | Pauline Delpeuch |
| collection | DOAJ |
| description | Ranunculaceae comprise ca. 2,500 species (ca. 55 genera) that display a broad range of floral diversity, particularly at the level of the perianth. Petals, when present, are often referred to as “elaborate” because they have a complex morphology. In addition, the petals usually produce and store nectar, which gives them a crucial functional role in the interaction with pollinators. Its morphological diversity and species richness make this family a particularly suitable model group for studying the evolution of complex morphologies. Our aims are (1) to reconstruct the ancestral form of the petal and evolutionary stages at the scale of Ranunculaceae, (2) to test the hypothesis that there are morphogenetic regions on the petal that are common to all species and that interspecific morphological diversity may be due to differences in the relative proportions of these regions during development. We scored and analyzed traits (descriptors) that characterize in detail the complexity of mature petal morphology in 32 genera. Furthermore, we described petal development using high resolution X-Ray computed tomography (HRX-CT) in six species with contrasting petal forms (Ficaria verna, Helleborus orientalis, Staphisagria picta, Aconitum napellus, Nigella damascena, Aquilegia vulgaris). Ancestral state reconstruction was performed using a robust and dated phylogeny of the family, allowing us to produce new hypotheses for petal evolution in Ranunculaceae. Our results suggest a flat ancestral petal with a short claw for the entire family and for the ancestors of all tribes except Adonideae. The elaborate petals that are present in different lineages have evolved independently, and similar morphologies are the result of convergent evolution. |
| first_indexed | 2024-12-10T14:06:02Z |
| format | Article |
| id | doaj.art-f0b0415a92b24e24a569b0e75af9eaf7 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-10T14:06:02Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-f0b0415a92b24e24a569b0e75af9eaf72022-12-22T01:45:39ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-09-011310.3389/fpls.2022.961906961906A flat petal as ancestral state for RanunculaceaePauline Delpeuch0Pauline Delpeuch1Florian Jabbour2Catherine Damerval3Jürg Schönenberger4Susanne Pamperl5Maxime Rome6Sophie Nadot7Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, FranceInstitut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, FranceInstitut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, FranceUniversité Paris-Saclay, INRAE, CNRS, AgroParisTech, Génétique Quantitative et Evolution-Le Moulon, Gif-sur-Yvette, FranceDepartment of Botany and Biodiversity Research, University of Vienna, Vienna, AustriaDepartment of Botany and Biodiversity Research, University of Vienna, Vienna, AustriaJardin du Lautaret, CNRS, Université Grenoble Alpes, Grenoble, FranceUniversité Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, FranceRanunculaceae comprise ca. 2,500 species (ca. 55 genera) that display a broad range of floral diversity, particularly at the level of the perianth. Petals, when present, are often referred to as “elaborate” because they have a complex morphology. In addition, the petals usually produce and store nectar, which gives them a crucial functional role in the interaction with pollinators. Its morphological diversity and species richness make this family a particularly suitable model group for studying the evolution of complex morphologies. Our aims are (1) to reconstruct the ancestral form of the petal and evolutionary stages at the scale of Ranunculaceae, (2) to test the hypothesis that there are morphogenetic regions on the petal that are common to all species and that interspecific morphological diversity may be due to differences in the relative proportions of these regions during development. We scored and analyzed traits (descriptors) that characterize in detail the complexity of mature petal morphology in 32 genera. Furthermore, we described petal development using high resolution X-Ray computed tomography (HRX-CT) in six species with contrasting petal forms (Ficaria verna, Helleborus orientalis, Staphisagria picta, Aconitum napellus, Nigella damascena, Aquilegia vulgaris). Ancestral state reconstruction was performed using a robust and dated phylogeny of the family, allowing us to produce new hypotheses for petal evolution in Ranunculaceae. Our results suggest a flat ancestral petal with a short claw for the entire family and for the ancestors of all tribes except Adonideae. The elaborate petals that are present in different lineages have evolved independently, and similar morphologies are the result of convergent evolution.https://www.frontiersin.org/articles/10.3389/fpls.2022.961906/fullRanunculaceaeancestral state reconstructionelaborate petalsfloral morphologypetal development |
| spellingShingle | Pauline Delpeuch Pauline Delpeuch Florian Jabbour Catherine Damerval Jürg Schönenberger Susanne Pamperl Maxime Rome Sophie Nadot A flat petal as ancestral state for Ranunculaceae Frontiers in Plant Science Ranunculaceae ancestral state reconstruction elaborate petals floral morphology petal development |
| title | A flat petal as ancestral state for Ranunculaceae |
| title_full | A flat petal as ancestral state for Ranunculaceae |
| title_fullStr | A flat petal as ancestral state for Ranunculaceae |
| title_full_unstemmed | A flat petal as ancestral state for Ranunculaceae |
| title_short | A flat petal as ancestral state for Ranunculaceae |
| title_sort | flat petal as ancestral state for ranunculaceae |
| topic | Ranunculaceae ancestral state reconstruction elaborate petals floral morphology petal development |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.961906/full |
| work_keys_str_mv | AT paulinedelpeuch aflatpetalasancestralstateforranunculaceae AT paulinedelpeuch aflatpetalasancestralstateforranunculaceae AT florianjabbour aflatpetalasancestralstateforranunculaceae AT catherinedamerval aflatpetalasancestralstateforranunculaceae AT jurgschonenberger aflatpetalasancestralstateforranunculaceae AT susannepamperl aflatpetalasancestralstateforranunculaceae AT maximerome aflatpetalasancestralstateforranunculaceae AT sophienadot aflatpetalasancestralstateforranunculaceae AT paulinedelpeuch flatpetalasancestralstateforranunculaceae AT paulinedelpeuch flatpetalasancestralstateforranunculaceae AT florianjabbour flatpetalasancestralstateforranunculaceae AT catherinedamerval flatpetalasancestralstateforranunculaceae AT jurgschonenberger flatpetalasancestralstateforranunculaceae AT susannepamperl flatpetalasancestralstateforranunculaceae AT maximerome flatpetalasancestralstateforranunculaceae AT sophienadot flatpetalasancestralstateforranunculaceae |