TM8 represses developmental timing in Nicotiana benthamiana and has functionally diversified in angiosperms.

ABSTRACT:

Background

MADS-box genes are key regulators of plant reproductive development and members of most lineages of this gene family have been extensively studied. However, the function and diversification of the ancient TM8 lineage remains elusive to date. The available data suggest a possible function in flower development in tomato and fast evolution through numerous gene loss events in flowering plants.

Results

We show the broad conservation of TM8 within angiosperms and find that in contrast to other MADS-box gene lineages, no gene duplicates have been retained after major whole genome duplication events. Through knock-down of NbTM8 by virus induced gene silencing in Nicotiana benthamiana, we show that NbTM8 represses miR172 together with another MADS-box gene, SHORT VEGETAT

SUBMITTER: Coenen H 

PROVIDER: S-EPMC6013966 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature