Gene Details:

• Gene ID: SolyC03g120910
• Gene Symbol: SlHB15A
• Gene Name: homeobox-leucine zipper protein ATHB-15
• Genome: Tomato Genome version SL4.0
• Species: Solanum lycopersicum

Functional Descriptions:

• The miR166–SlHB15A regulatory module controls ovule development and parthenocarpic fruit set under adverse temperatures in tomato.
• SlHB15A loss-of-function mutants display aberrant ovule development that mimics transcriptional changes occurring in fertilized ovules and leads to parthenocarpic fruit set under optimal and non-permissive temperatures, in field and greenhouse conditions.
• Knockdown of SlHB15A alleles by miR166 leads to a continuum of aberrant ovules correlating with parthenocarpic fruit set.
• Our findings demonstrate the role of SlHB15A as a sentinel to prevent fruit set in the absence of fertilization and provide a mean to enhance fruiting under extreme temperatures.
• The miR166-targeted SlHB15A gene is expressed in the ovule integument and directly regulates auxin and ethylene signaling to prevent fruit set in the absence of fertilization.

Function-related keywords:

• development ,  ovule

Literature:

• The miR166-SlHB15A regulatory module controls ovule development and parthenocarpic fruit set under adverse temperatures in tomato.   DOI:  10.1016/j.molp.2021.05.005 ;  PMID:  33964458
• Guarding tomato fruit setting in adverse temperatures through the miRNA166-SlHB15A regulatory module.   DOI:  10.1016/j.molp.2021.06.020 ;  PMID:  34182155

Related News:

• ​Molecular Plant | miR166-SlHB15A调控番茄在不利生长温度下的胚珠发育和果实形成

Gene Resources:

• NCBI ID: 101257548
• UniProt accessions: A0A3Q7FTR8

Sequences: