Gene Details:

• Gene ID: Zm00001eb285570
• Gene Symbol: Mn6 gpm882
• Gene Name: miniature seed6
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• Identification of a maize (Zea mays) miniature seed6 (Mn6) mutant.
• Miniature Seed6, encoding an endoplasmic reticulum signal peptidase, is critical in seed development.
• Mass spectrometric and immunoprecipitation analyses revealed that Mn6 is predominantly involved in processing carbohydrate synthesis-related proteins, including the cell wall invertase miniature seed1 (Mn1).
• The loss-of-function Mn6 mutant exhibited severely reduced endosperm size.
• Due to the significant reduction in cell wall invertase activity in the transfer cell layer, mutation of Mn6 caused dramatic defects in endosperm development.
• These results suggest that proper maturation of Mn1 by Mn6 may be a crucial step for proper seed filling and maize development.
• Mn6 encodes an endoplasmic reticulum signal peptidase and mutant kernels are relatively small.

Function-related keywords:

• development ,  seed ,  cell-wall ,  endosperm ,  seed-size ,  seed-development ,  cell-wall-synthesis ,  endosperm-development ,  seed-filling

Literature:

• Miniature Seed6, encoding an endoplasmic reticulum signal peptidase, is critical in seed development.   DOI:  10.1093/plphys/kiaa060 ;  PMID:  33793873

Related News:

• 中国农业大学研究团队发现内质网信号肽酶Mn6在玉米籽粒发育过程中起关键作用

Gene Resources:

• NCBI ID: LOC100273903
• UniProt accessions: B6T545 ,  B8A1P4

Sequences:

Source: Genetic information comes from the article