Differentially expressed microRNA cohorts in seed development may contribute to poor grain filling of inferior spikelets in rice.

ABSTRACT:

Background

The inferior spikelets are defined to be those at portions where the grains receive less photosynthetic products during the seed development. The typical inferior spikelets are physically located on the proximal secondary branches in a rice panicle and traditionally characterized by a later flowering time and a slower grain-filling rate, compared to those so-called superior spikelets. Grains produced on the inferior spikelets are consequently under-developed and lighter in weight than those formed on the superior spikelets. MicroRNAs (miRNAs) are recognized as key players in regulating plant development through post-transcriptional gene regulations. We previously presented the evidence that miRNAs may influence grain-filling rate and played a role in determining the grai

SUBMITTER: Peng T 

PROVIDER: S-EPMC4422267 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature