Abstract
Grain yield in wheat is mostly governed prior to flowering during primordia development. Mature primordia development, floret fertility, and maximum grain number per spikelet are the three most important characteristics of spike development. The genes involved in primordia formation, on the other hand, have remained unclear. Here, we demonstrate molecular characterization of Triticum aestivum MARCH9 (TraesCS7A01G283700) which encodes RING domain, might play a positively regulating primordium and floret development until anthesis stages. TaMARCH9 expression level was highly induced at differentiation stages (WS 3-6) in Yeongkwang cultivar. TaMARCH9 exhibited ubiquitination activities and was localized to the plasma membrane using a transient expression system in tobacco. Moreover, overexpression of TaMARCH9 in Arabidopsis plant displayed early flowering phenotypes compared to wild-type. Some of flowering related genes such as FLC, MAF, FT and SOC were highly induced in TaMARCH9-overexpressing Arabidopsis plants. Our finding suggested that TaMARCH9 may act a key role in the formation of floret primordium development and/or flowering time in wheat.
| Original language | English |
|---|---|
| Pages (from-to) | 224-231 |
| Number of pages | 8 |
| Journal | Plant Breeding and Biotechnology |
| Volume | 10 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2022 |
Bibliographical note
Funding Information:This work was supported by a grant from the Korea University and Basic Science Research Program through the National Research Foundation of Korea, which is funded by the Ministry of Science, ICT & Future Planning (grant number 2017R1D1A1B06030349).
Funding Information:
This work was supported by a grant from the Korea
Publisher Copyright:
© 2022,Plant Breeding and Biotechnology. All rights reserved.
Keywords
- Arabidopsis
- Floret
- Flowering
- Primordia
- Ring-type e3 ligase
- Wheat
ASJC Scopus subject areas
- Biotechnology
- Plant Science