Sorghum root-system classification in contrasting P environments reveals three main rooting types and root-architecture-related marker-trait associations.

ABSTRACT: Background and Aims:Roots facilitate acquisition of macro- and micronutrients, which are crucial for plant productivity and anchorage in the soil. Phosphorus (P) is rapidly immobilized in the soil and hardly available for plants. Adaptation to P scarcity relies on changes in root morphology towards rooting systems well suited for topsoil foraging. Root-system architecture (RSA) defines the spatial organization of the network comprising primary, lateral and stem-derived roots and is important for adaptation to stress conditions. RSA phenotyping is a challenging task and essential for understanding root development. Methods:In this study, 19 traits describing RSA were analysed in a diversity panel comprising 194 sorghum genotypes, fingerprinted with a 90-k single-nucleotide polymorphism (SNP

SUBMITTER: Parra-Londono S 

PROVIDER: S-EPMC5808808 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature