Medicago ABI3 Splicing Isoforms Regulate the Expression of Different Gene Clusters to Orchestrate Seed Maturation.

ABSTRACT: Seed maturation comprises important developmental processes, such as seed filling and the acquisition of seed germination capacity, desiccation tolerance, longevity, and dormancy. The molecular regulation of these processes is tightly controlled by the LAFL transcription factors, among which ABSCISIC ACID INSENSITIVE 3 (ABI3) was shown to be involved in most of these seed maturation processes. Here, we studied the ABI3 gene from Medicago truncatula, a model legume plant for seed studies. With the transcriptomes of two loss-of-function Medicago abi3 mutants, we were able to show that many gene classes were impacted by the abi3 mutation at different stages of early, middle, and late seed maturation. We also discovered three MtABI3 expression isoforms

SUBMITTER: Lalanne D 

PROVIDER: S-EPMC8398556 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature