Article
Paternal imprinting of dosage-effect defective1 contributes to seed weight xenia in maize.
Nature communications - 13 Sept 2022
Dai Dawei, Mudunkothge Janaki S, Galli Mary, Char Si Nian, Davenport Ruth, Zhou Xiaojin, Gustin Jeffery L, Spielbauer Gertraud, Zhang Junya, Barbazuk W Brad, Yang Bing, Gallavotti Andrea, Settles A Mark
Abstract excerpt
Historically, xenia effects were hypothesized to be unique genetic contributions of pollen to seed phenotype, but most examples represent standard complementation of Mendelian traits. We identified the imprinted dosage-effect defective1 (ded1) locus in maize (Zea mays) as a paternal regulator of seed size and development. Hypomorphic alleles show a 5-10% seed weight reduction when ded1 is transmitted through the...
Topics
- Alleles
- Endosperm
- Genomic Imprinting
- Seeds
- Zea mays