Gene Details:

• Gene ID: Zm00001eb361390
• Gene Symbol: ZmABI19 ZmAFL2
• Gene Name: ABI3-VP1-transcription factor 19
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• ZmABI19 coordinates expression of key factors required for maize seed development and grain filling.
• ZmABI19 regulatory network in the coordination of endosperm and embryo development, nutrient reservoir activity, starch and sucrose metabolism, and plant hormone signal transduction in maize seeds.
• We used the promoter of the grain filling-specific TF gene Opaque2 (O2) to screen upstream regulatory factors and identified a B3 domain TF, ZmABI19, that directly binds to the O2 promoter for transactivation.
• The accumulation of zeins, starch and lipids dramatically decreased in ZmABI19 mutants.
• ZmABI19 directly regulates multiple key grain filling TFs including O2, Prolamine-box binding factor 1, ZmbZIP22, NAC130, and Opaque11 in the endosperm and Viviparous1 in the embryo.

Function-related keywords:

• development ,  grain ,  plant-development ,  seed ,  starch ,  grain-filling ,  embryo ,  endosperm ,  signal-transduction ,  seed-development ,  sucrose ,  endosperm-development ,  embryo-development ,  seed-filling ,  starch-accumulation

Literature:

• The B3 domain-containing transcription factor ZmABI19 coordinates expression of key factors required for maize seed development and grain filling.   DOI:  10.1093/plcell/koaa008 ;  PMID:  33751093
• Regulation of seed storage protein synthesis in monocot and dicot plants: A comparative review.   DOI:  10.1016/j.molp.2022.12.004 ;  PMID:  36495013
• ABA-induced phosphorylation of basic leucine zipper 29, ABSCISIC ACID INSENSITIVE 19, and Opaque2 by SnRK2.2 enhances gene transactivation for endosperm filling in maize.   DOI:  10.1093/plcell/koac044 ;  PMID:  35157077

Related News:

• Plant Cell | 巫永睿研究组发现玉米籽粒发育与灌浆协同调控中心因子

Gene Resources:

• NCBI ID: 103636228
• UniProt accessions: A0A1D6G382 ,  A0A1D6G382 ,  A0A1D6G384 ,  A0A1D6G385

Sequences:

Source: Genetic information comes from the article