Gene Details:

• Gene ID: Zm00001eb220940
• Gene Symbol: ZmPORB2
• Gene Name: protochlorophyllide reductase3
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• An allele of ZmPORB2 encoding a protochlorophyllide oxidoreductase promotes tocopherol accumulation in both leaves and kernels of maiz.
• Overexpression of ZmPORB2 increased tocopherol content in both leaves and kernels. Candidate gene association analysis identified a 5/8-bp insertion/deletion (InDel058) in the 5′ untranslated region (UTR) as the causal polymorphism in affecting ZmPORB2 expression and being highly associated with tocopherol content.
• RNA-sequencing and metabolic analysis in near isogenic lines (NILs) support that ZmPORB2 participates in chlorophyll metabolism enabling the production of phytol, an important precursor of tocopherol.
• Finally, we posit that a PCR marker derived from the causative polymorphism of ZmPORB2 could be utilized in high vitamin E maize breeding.

Function-related keywords:

• breeding ,  chlorophyll ,  chlorophyll-content

Literature:

• An allele of ZmPORB2 encoding a protochlorophyllide oxidoreductase promotes tocopherol accumulation in both leaves and kernels of maize.   DOI:  10.1111/tpj.14432 ;  PMID:  31169939

Related News:

Gene Resources:

• NCBI ID: LOC100381341
• UniProt accessions: B4FKM0

Orthologs:

Sequences:

Source: Genetic information comes from the article