RGG2

2015-01-20 | Categories genes | Tags leaf growth grain development sheath gibberellin grain yield yield grain size ga height plant height Gibberellin GA organ size plant growth

Information
- Symbol: RGG2
- MSU: LOC_Os02g04520
- RAPdb: Os02g0137800
Publication
- Mutation of RGG2, which encodes a type B heterotrimeric G protein γ subunit, increases grain size and yield production in rice., 2018, Plant Biotechnol J.
Genbank accession number
Key message
- By measuring the length of the second leaf sheath after gibberellin (GA3 ) treatment and the GA-induced -amylase activity of seeds, we found that RGG2 is also involved in GA signaling
- The expression levels of RGG2 are significantly higher than those of other rice G -encoding genes in all tissues tested, suggesting that RGG2 plays essential roles in rice growth and development
- These results demonstrate that RGG2 acts as a negative regulator of plant growth and organ size in rice
- By regulating cell expansion, RGG2 overexpression in Nipponbare (NIP) leads to reduced plant height and decreased grain size
- In summary, we propose that RGG2 may regulate grain and organ size via the GA pathway and that manipulation of RGG2 provides a novel strategy for rice grain yield enhancement
Connection

Prev Next