An ortholog of the MADS-box gene SEPALLATA3 regulates stamen development in the woody plant Jatropha curcas.
Anther
Physic nut
Pollen
SEPALLATA3
Stamen
Transcriptome
Journal
Planta
ISSN: 1432-2048
Titre abrégé: Planta
Pays: Germany
ID NLM: 1250576
Informations de publication
Date de publication:
27 Apr 2022
27 Apr 2022
Historique:
received:
14
11
2021
accepted:
28
03
2022
entrez:
28
4
2022
pubmed:
29
4
2022
medline:
30
4
2022
Statut:
epublish
Résumé
Overexpression of JcSEP3 causes defective stamen development in Jatropha curcas, in which brassinosteroid and gibberellin signaling pathways may be involved. SEPALLATAs (SEPs), the class E genes of the ABCE model, are required for floral organ determination. In this study, we investigated the role of the JcSEP3 gene in floral organ development in the woody plant Jatropha curcas. Transgenic Jatropha plants overexpressing JcSEP3 displayed abnormal phenotypes such as deficient anthers and pollen, as well as free stamen filaments, whereas JcSEP3-RNA interference (RNAi) transgenic plants had no obvious phenotypic changes, suggesting that JcSEP3 is redundant with other JcSEP genes in Jatropha. Moreover, we compared the transcriptomes of wild-type plants, JcSEP3-overexpressing, and JcSEP3-RNAi transgenic plants. In the JcSEP3-overexpressing transgenic plants, we discovered 25 upregulated genes involved in anther and pollen development, as well as 12 induced genes in brassinosteroid (BR) and gibberellin (GA) signaling pathways. These results suggest that JcSEP3 directly or indirectly regulates stamen development, concomitant with the regulation of BR and GA signaling pathways. Our findings help to understand the roles of SEP genes in stamen development in perennial woody plants.
Identifiants
pubmed: 35478059
doi: 10.1007/s00425-022-03886-3
pii: 10.1007/s00425-022-03886-3
doi:
Substances chimiques
Brassinosteroids
0
Gibberellins
0
Plant Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
111Subventions
Organisme : National Natural Science Foundation of China
ID : 31971628
Organisme : National Natural Science Foundation of China
ID : 31670612
Organisme : National Natural Science Foundation of China
ID : 31771605
Organisme : Programme of the Chinese Academy of Sciences
ID : kfj-brsn-2018-6-008
Organisme : Programme of the Chinese Academy of Sciences
ID : 2017XTBG-T02
Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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