Gene Family Analysis of the Arabidopsis NF-YA Transcription Factors Reveals Opposing Abscisic Acid Responses During Seed Germination.

ABSTRACT: In the plant kingdom, each of the NUCLEAR FACTOR-Y (NF-Y) transcription factor families, NF-YA, NF-YB, and NF-YC, has undergone a great expansion compared to the animal kingdom. For example, Arabidopsis thaliana has 10 members of each gene family compared to only one in humans. Progress towards understanding the significance of this expansion is limited due to a lack of studies looking at the complete gene family during plant development. In the current study, transgenic overexpression lines were created for all 10 Arabidopsis NF-YA genes and examined for general development and alterations in abscisic acid (ABA)-mediated seed germination. NF-YA overexpression typically led to severe growth retardation and developmental defects, which

SUBMITTER: Siriwardana CL 

PROVIDER: S-EPMC4149875 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature