Maize unstable factor for orange1 is essential for endosperm development and carbohydrate accumulation.
Journal
Plant physiology
ISSN: 1532-2548
Titre abrégé: Plant Physiol
Pays: United States
ID NLM: 0401224
Informations de publication
Date de publication:
03 08 2021
03 08 2021
Historique:
received:
19
11
2020
accepted:
07
04
2021
pubmed:
28
4
2021
medline:
5
3
2022
entrez:
27
4
2021
Statut:
ppublish
Résumé
Maize (Zea mays L.) Ufo1-1 is a spontaneous dominant mutation of the unstable factor for orange1 (ufo1). We recently cloned ufo1, which is a Poaceae-specific gene highly expressed during seed development in maize. Here, we have characterized Ufo1-1 and a loss-of-function Ds insertion allele (ufo1-Dsg) to decipher the role of ufo1 in maize. We found that both ufo1 mutant alleles impact sugars and hormones, and have defects in the basal endosperm transfer layer (BETL) and adjacent cell types. The Ufo1-1 BETL had reduced cell elongation and cell wall ingrowth, resulting in cuboidal shaped transfer cells. In contrast, the ufo1-Dsg BETL cells showed a reduced overall size with abnormal wall ingrowth. Expression analysis identified the impact of ufo1 on several genes essential for BETL development. The overexpression of Ufo1-1 in various tissues leads to ectopic phenotypes, including abnormal cell organization and stomata subsidiary cell defects. Interestingly, pericarp and leaf transcriptomes also showed that as compared with wild type, Ufo1-1 had ectopic expression of endosperm development-specific genes. This study shows that Ufo1-1 impacts the expression patterns of a wide range of genes involved in various developmental processes.
Identifiants
pubmed: 33905500
pii: 6255763
doi: 10.1093/plphys/kiab183
pmc: PMC8331166
doi:
Substances chimiques
Transcription Factors
0
Ufo1 protein, maize
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1932-1950Informations de copyright
© American Society of Plant Biologists 2021. All rights reserved. For permissions, please email: journals.permissions@oup.com.
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