MiR171h restricts root symbioses and shows like its target NSP2 a complex transcriptional regulation in Medicago truncatula.

ABSTRACT:

Background

Legumes have the unique capability to undergo root nodule and arbuscular mycorrhizal symbiosis. Both types of root endosymbiosis are regulated by NSP2, which is a target of microRNA171h (miR171h). Although, recent data implies that miR171h specifically restricts arbuscular mycorrhizal symbiosis in the root elongation zone of Medicago truncatula roots, there is limited knowledge available about the spatio-temporal regulation of miR171h expression at different physiological and symbiotic conditions.

Results

We show that miR171h is functionally expressed from an unusual long primary transcript, previously predicted to encode two identical miR171h strands. Both miR171h and NSP2 transcripts display a complex regulation pattern, which involves the symbiotic status and t

SUBMITTER: Hofferek V 

PROVIDER: S-EPMC4115173 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature