Gene Details:

• Gene ID: Zm00001eb005840
• Gene Symbol: Ct2
• Gene Name: compact plant2
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• The maize heterotrimeric G protein α subunit COMPACT PLANT2 (Ct2) functions with CLV receptors to regulate meristem development.
• By either forcing Ct2 to be constitutively active, or by depleting XLGs using CRISPR-Cas9, here we show that both Ct2 and XLGs play important roles in maize meristem regulation, and their manipulation improved agronomic traits.
• The maize heterotrimeric G protein α subunit COMPACT PLANT2 (Ct2) functions with CLV receptors to regulate meristem development.
• Ct2 and XLGs have both redundant and specialized functions in regulating shoot development. Importantly, we show that a constitutively active Gα functioned as a weak allele, which introduced multiple desirable agronomic traits, such as improved kernel row number and reduced leaf angle.
• Ct2 mutants have enlarged SAMs, fasciated ears with enlarged ear inflorescence meristems and more rows of kernels.

Function-related keywords:

• leaf ,  development ,  leaf-development ,  shoot ,  meristem ,  inflorescence ,  leaf-angle ,  inflorescence-development ,  shoot-meristem

Literature:

• Role of heterotrimeric Gα proteins in maize development and enhancement of agronomic traits.   DOI:  10.1371/journal.pgen.1007374 ;  PMID:  29708966
• The G protein-coupled receptor COLD1 promotes chilling tolerance in maize during germination.   DOI:  10.1016/j.ijbiomac.2023.126877 ;  PMID:  37716664

Related News:

Gene Resources:

• NCBI ID: ct2
• UniProt accessions: A0A1D6JQD6 ,  A0A1D6JQD7 ,  B6TWS6

Sequences:

Source: Genetic information comes from the article