High expression of the MADS-box gene VRT2 increases the number of rudimentary basal spikelets in wheat.

ABSTRACT: Spikelets are the fundamental building blocks of Poaceae inflorescences, and their development and branching patterns determine the various inflorescence architectures and grain yield of grasses. In wheat (Triticum aestivum), the central spikelets produce the most and largest grains, while spikelet size gradually decreases acropetally and basipetally, giving rise to the characteristic lanceolate shape of wheat spikes. The acropetal gradient corresponds with the developmental age of spikelets; however, the basal spikelets are developed first, and the cause of their small size and rudimentary development is unclear. Here, we adapted G&T-seq, a low-input transcriptomics approach, to characterize gene expression profiles within spatial sections of individual spikes before and after the establi

SUBMITTER: Backhaus AE 

PROVIDER: S-EPMC9237664 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature