Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis
Summary: Phenotypic variation is the basis for trait adaptation via evolutionary selection. However, the driving forces behind quantitative trait variations remain unclear owing to their complexity at the molecular level. This study focused on the natural variation of the free-running period (FRP) o...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004222009063 |
| _version_ | 1818546574534377472 |
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| author | Tomoaki Muranaka Shogo Ito Hiroshi Kudoh Tokitaka Oyama |
| author_facet | Tomoaki Muranaka Shogo Ito Hiroshi Kudoh Tokitaka Oyama |
| author_sort | Tomoaki Muranaka |
| collection | DOAJ |
| description | Summary: Phenotypic variation is the basis for trait adaptation via evolutionary selection. However, the driving forces behind quantitative trait variations remain unclear owing to their complexity at the molecular level. This study focused on the natural variation of the free-running period (FRP) of the circadian clock because FRP is a determining factor of the phase phenotype of clock-dependent physiology. Lemna aequinoctialis in Japan is a paddy field duckweed that exhibits a latitudinal cline of critical day length (CDL) for short-day flowering. We collected 72 strains of L. aequinoctialis and found a significant correlation between FRPs and locally adaptive CDLs, confirming that variation in the FRP-dependent phase phenotype underlies photoperiodic adaptation. Diel transcriptome analysis revealed that the induction timing of an FT gene is key to connecting the clock phase to photoperiodism at the molecular level. This study highlights the importance of FRP as a variation resource for evolutionary adaptation. |
| first_indexed | 2024-12-12T07:55:02Z |
| format | Article |
| id | doaj.art-331c0114c06a4e458740f9dc6e84fce7 |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-12-12T07:55:02Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-331c0114c06a4e458740f9dc6e84fce72022-12-22T00:32:20ZengElsevieriScience2589-00422022-07-01257104634Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialisTomoaki Muranaka0Shogo Ito1Hiroshi Kudoh2Tokitaka Oyama3Faculty of Agriculture, Kagoshima University, Korimoto 21-24-1, Kagoshima 890-0065, JapanDepartment of Botany, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, JapanCenter for Ecological Research, Kyoto University, Hirano 2-509-3, Otsu 520-2113, JapanDepartment of Botany, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan; Corresponding authorSummary: Phenotypic variation is the basis for trait adaptation via evolutionary selection. However, the driving forces behind quantitative trait variations remain unclear owing to their complexity at the molecular level. This study focused on the natural variation of the free-running period (FRP) of the circadian clock because FRP is a determining factor of the phase phenotype of clock-dependent physiology. Lemna aequinoctialis in Japan is a paddy field duckweed that exhibits a latitudinal cline of critical day length (CDL) for short-day flowering. We collected 72 strains of L. aequinoctialis and found a significant correlation between FRPs and locally adaptive CDLs, confirming that variation in the FRP-dependent phase phenotype underlies photoperiodic adaptation. Diel transcriptome analysis revealed that the induction timing of an FT gene is key to connecting the clock phase to photoperiodism at the molecular level. This study highlights the importance of FRP as a variation resource for evolutionary adaptation.http://www.sciencedirect.com/science/article/pii/S2589004222009063Plant biologyPlant BiologyPlant genetics |
| spellingShingle | Tomoaki Muranaka Shogo Ito Hiroshi Kudoh Tokitaka Oyama Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis iScience Plant biology Plant Biology Plant genetics |
| title | Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis |
| title_full | Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis |
| title_fullStr | Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis |
| title_full_unstemmed | Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis |
| title_short | Circadian-period variation underlies the local adaptation of photoperiodism in the short-day plant Lemna aequinoctialis |
| title_sort | circadian period variation underlies the local adaptation of photoperiodism in the short day plant lemna aequinoctialis |
| topic | Plant biology Plant Biology Plant genetics |
| url | http://www.sciencedirect.com/science/article/pii/S2589004222009063 |
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