Developmental and genomic architecture of plant embryogenesis: From model plant to crops

第一作者：Alma Armenta-Medina

第一单位：萨斯喀彻温大学

通讯作者：Raju Datla

 Abstract 

胚胎发育重要性：Embryonic development represents an important reproductive phase of sexually reproducing plant species.

胚胎发生早期：The fusion of egg and sperm produces the plant zygote, a totipotent cell that through cell division and cell identity specification in early embryogenesis establishes the major cell lineages and tissues of the adult plant.

胚胎发生中后期：The subsequent morphogenesis phase produces the full-sized embryo, while the late embryogenesis maturation process prepares the seed for dormancy and subsequent germination, ensuring continuation of the plant life cycle.

综述内容：In this review on embryogenesis, we compare the model eudicot Arabidopsis thaliana with monocot crops, focusing on genome activation, paternal and maternal regulation of early zygote development, and key organizers of patterning such as auxin and WOX transcription factors.

单、双子叶比较：While the early stages of embryo development are apparently conserved among plant species, embryo maturation programs have diversified between eudicots and monocots.

分化原因：This diversification in crop species reflects the likely effects of domestication on seed quality traits that are determined during embryo maturation, and also assures seed germination in different environmental conditions.

结论：This review describes the most important features of embryonic development in plants, and the scope and applications of genomics in plant embryo studies.

doi: https://doi.org/10.1016/j.xplc.2020.100136

Journal: Plant Communications

First Published: Dec 14, 2020