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Chromatin interacting factor OsVIL2 increases biomass and rice grain yield.
- Source :
-
Plant biotechnology journal [Plant Biotechnol J] 2019 Jan; Vol. 17 (1), pp. 178-187. Date of Electronic Publication: 2018 Jun 26. - Publication Year :
- 2019
-
Abstract
- Grain number is an important agronomic trait. We investigated the roles of chromatin interacting factor Oryza sativa VIN3-LIKE 2 (OsVIL2), which controls plant biomass and yield in rice. Mutations in OsVIL2 led to shorter plants and fewer grains whereas its overexpression (OX) enhanced biomass production and grain numbers when compared with the wild type. RNA-sequencing analyses revealed that 1958 genes were up-regulated and 2096 genes were down-regulated in the region of active division within the first internodes of OX plants. Chromatin immunoprecipitation analysis showed that, among the downregulated genes, OsVIL2 was directly associated with chromatins in the promoter region of CYTOKININ OXIDASE/DEHYDROGENASE2 (OsCKX2), a gene responsible for cytokinin degradation. Likewise, active cytokinin levels were increased in the OX plants. We conclude that OsVIL2 improves the production of biomass and grain by suppressing OsCKX2 chromatin.<br /> (© 2018 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.)
- Subjects :
- Biomass
Chromatin Immunoprecipitation
Edible Grain genetics
Edible Grain metabolism
Gene Expression Profiling
Gene Expression Regulation, Plant genetics
Homeodomain Proteins metabolism
Homeodomain Proteins physiology
Oryza growth & development
Oryza metabolism
Plant Proteins metabolism
Plant Proteins physiology
Promoter Regions, Genetic genetics
Sequence Analysis, RNA
Edible Grain growth & development
Homeodomain Proteins genetics
Oryza genetics
Plant Proteins genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1467-7652
- Volume :
- 17
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Plant biotechnology journal
- Publication Type :
- Academic Journal
- Accession number :
- 29851259
- Full Text :
- https://doi.org/10.1111/pbi.12956