English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Traits such as grain shape, panicle length and seed shattering, play important roles in grain yield and harvest. In this study, the cloning and functional analysis of  PANICLE TRAITS 2  ( PT2 ), a novel gene from the  Indica  rice Chuandali (CDL), is reported.  PT2  is synonymous with  Growth‐Regulating Factor 4  ( OsGRF4 ), which encodes a growth‐regulating factor that positively regulates grain shape and panicle length and negatively regulates seed shattering. Higher expression of  OsGRF4  is correlated with larger grain, longer panicle and lower seed shattering. A unique  OsGRF4  mutation, which occurs at the  OsmiRNA396  target site of  OsGRF4 , seems to be associated with high levels of  OsGRF4  expression, and results in phenotypic difference. Further research showed that  OsGRF4  regulated two cytokinin dehydrogenase precursor genes ( CKX5  and  CKX1 ) resulting in increased cytokinin levels, which might affect the panicle traits. High storage capacity and moderate seed shattering of  OsGRF4  may be useful in high‐yield breeding and mechanized harvesting of rice. Our findings provide additional insight into the molecular basis of panicle growth.

OsGRF4 controls grain shape, panicle length and seed shattering in rice