Maize Dek407 Encodes the Nitrate Transporter 1.5 and Is Required for Kernel Development.

ABSTRACT: The kernel serves as the storage organ and harvestable component of maize, and it plays a crucial role in determining crop yield and quality. Understanding the molecular and genetic mechanisms of kernel development is of considerable importance for maize production. In this study, we obtained a mutant, which we designated defective kernel 407 (dek407), through ethyl methanesulfonate mutagenesis. The dek407 mutant exhibited reduced kernel size and kernel weight, as well as delayed grain filling compared with those of the wild type. Positional cloning and an allelism test revealed that Dek407 encodes a nitrate transporter 1/peptide transporter family (NPF) protein and is the allele of miniature 2 (mn2) that was responsible for a poorly filled defective kern

SUBMITTER: Wang H 

PROVIDER: S-EPMC10743814 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature