The formation of stipule requires the coordinated actions of the legume orthologs of Arabidopsis BLADE-ON-PETIOLE and LEAFY
© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation..
Stipule morphology is a classical botanical key character used in plant identification. Stipules are considerably diverse in size, function and architecture, such as leaf-like stipules, spines or tendrils. However, the molecular mechanism that regulates stipule identity remains largely unknown. We isolated mutants with abnormal stipules. The mutated gene encodes the NODULE ROOT1 (MtNOOT1), which is the ortholog of BLADE-ON-PETIOLE (BOP) in Medicago truncatula. We also obtained mutants of MtNOOT2, the homolog of MtNOOT1, but they do not show obvious defects in stipules. The mtnoot1 mtnoot2 double mutant shows a higher proportion of transformation from stipules to leaflet-like stipules than the single mutants, suggesting that they redundantly determine stipule identity. Further investigations show that MtNOOTs control stipule initiation together with SINGLE LEAFLET1 (SGL1), which functions in development of lateral leaflets. Increasing SGL1 activity in mtnoot1 mtnoot2 is sufficient for the transformation of stipules to leaves. Moreover, MtNOOTs inhibit SGL1 expression during stipule development, which is probably conserved in legume species. Our study proposes a genetic regulatory model for stipule development, specifically with regard to the MtNOOTs-SGL1 module, which functions in two phases of stipule development, first in the control of stipule initiation and second in stipule patterning.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:236 |
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| Enthalten in: |
The New phytologist - 236(2022), 4 vom: 22. Nov., Seite 1512-1528 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Juanjuan [VerfasserIn] |
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| Links: |
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| Themen: |
Compound leaf |
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| Anmerkungen: |
Date Completed 21.10.2022 Date Revised 09.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/nph.18445 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Zhang, Juanjuan |e verfasserin |4 aut | |
| 245 | 1 | 4 | |a The formation of stipule requires the coordinated actions of the legume orthologs of Arabidopsis BLADE-ON-PETIOLE and LEAFY |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation. | ||
| 520 | |a Stipule morphology is a classical botanical key character used in plant identification. Stipules are considerably diverse in size, function and architecture, such as leaf-like stipules, spines or tendrils. However, the molecular mechanism that regulates stipule identity remains largely unknown. We isolated mutants with abnormal stipules. The mutated gene encodes the NODULE ROOT1 (MtNOOT1), which is the ortholog of BLADE-ON-PETIOLE (BOP) in Medicago truncatula. We also obtained mutants of MtNOOT2, the homolog of MtNOOT1, but they do not show obvious defects in stipules. The mtnoot1 mtnoot2 double mutant shows a higher proportion of transformation from stipules to leaflet-like stipules than the single mutants, suggesting that they redundantly determine stipule identity. Further investigations show that MtNOOTs control stipule initiation together with SINGLE LEAFLET1 (SGL1), which functions in development of lateral leaflets. Increasing SGL1 activity in mtnoot1 mtnoot2 is sufficient for the transformation of stipules to leaves. Moreover, MtNOOTs inhibit SGL1 expression during stipule development, which is probably conserved in legume species. Our study proposes a genetic regulatory model for stipule development, specifically with regard to the MtNOOTs-SGL1 module, which functions in two phases of stipule development, first in the control of stipule initiation and second in stipule patterning | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Medicago truncatula | |
| 650 | 4 | |a MtNOOTs | |
| 650 | 4 | |a SGL1 | |
| 650 | 4 | |a compound leaf | |
| 650 | 4 | |a indeterminacy of primordia | |
| 650 | 4 | |a stipule | |
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| 700 | 1 | |a Wang, Xiao |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Yangyang |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jie |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zeng-Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Wen, Jiangqi |e verfasserin |4 aut | |
| 700 | 1 | |a Mysore, Kirankumar S |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Chuanen |e verfasserin |4 aut | |
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