Analysis of Global Gene Expression in Maize (Zea mays) Vegetative and Reproductive Tissues That Differ in Accumulation of Starch and Sucrose.

ABSTRACT: Carbon allocation between vegetative and reproductive tissues impacts cereal grain production. Despite great agricultural importance, sink-source relationships have not been fully characterized at the early reproductive stages in maize. Here, we quantify the accumulation of non-structural carbohydrates and patterns of gene expression in the top internode of the stem and the female inflorescence of maize at the onset of grain filling (reproductive stage R1). Top internode stem and female inflorescence tissues of the Puma maize inbred line were collected at reproductive stage R1 (without pollination) and non-structural carbohydrates were quantified by spectrophotometry. The female inflorescence accumulated starch at higher levels than the top internode of the stem. Global mRNA transcript lev

SUBMITTER: Lopez-Gonzalez C 

PROVIDER: S-EPMC8838981 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature