A high-resolution gene expression atlas links dedicated meristem genes to key architectural traits.

ABSTRACT: The shoot apical meristem (SAM) orchestrates the balance between stem cell proliferation and organ initiation essential for postembryonic shoot growth. Meristems show a striking diversity in shape and size. How this morphological diversity relates to variation in plant architecture and the molecular circuitries driving it are unclear. By generating a high-resolution gene expression atlas of the vegetative maize shoot apex, we show here that distinct sets of genes govern the regulation and identity of stem cells in maize versus Arabidopsis. Cell identities in the maize SAM reflect the combinatorial activity of transcription factors (TFs) that drive the preferential, differential expression of individual members within gene families functioning in a plethora of cellular processes. Sub

SUBMITTER: Knauer S 

PROVIDER: S-EPMC6886502 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature