The developmental dynamics of the sweet sorghum root transcriptome elucidate the differentiation of apoplastic barriers.

ABSTRACT: Apoplastic barriers in the endodermis, such as Casparian strips and suberin lamellae, control the passage of water and minerals into the stele. Apoplastic barriers are thus thought to contribute to salt exclusion in salt-excluding plants such as sweet sorghum (Sorghum bicolor). However, little is known about the genes involved in the development of the apoplastic barrier. Here, we identified candidate genes involved in Casparian strip and suberin lamella development in the roots of a sweet sorghum line (M-81E). Three distinct developmental regions (no differentiation, developing, and mature) were identified based on Casparian strip and suberin lamella staining in root cross sections. Sequencing of RNA extracted from these distinct sections identified key genes participating in the d

SUBMITTER: Wei X 

PROVIDER: S-EPMC7194387 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature