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

作　　者：Alma Armenta-Medina C.Stewart Gillmor Peng Gao Javier Mora-Macias Leon V.Kochian Daoquan Xiang Raju Datla 

机构地区：[1]Global Institute for Food Security,University of Saskatchewan,Saskatoon,SK S7N 4J8,Canada [2]Laboratorio Nacional de Genòmica para la Biodiversidad(Langebio),Unidad de Genòmica Avanzada,Centro de Investigaciòny Estudios Avanzados del IPN(CINVESTAV-IPN),Irapuato,Guanajuato,México [3]National Research Council Canada,110 Gymnasium Place,Saskatoon,SK S7N 0W9,Canada

出　　处：《Plant Communications》2021年第1期1-12,共12页植物通讯（英文）

基　　金：supported by CONACyT Ciencia Básica grant A1-S-34956.

摘　　要：Embryonic development represents an important reproductive phase of sexually reproducing plant species.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.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.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.While the early stages of embryo development are apparently conserved among plant species,embryo maturation programs have diversified between eudicots and monocots.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.This review describes the most important features of embryonic development in plants,and the scope and applications of genomics in plant embryo studies.

关 键 词：EMBRYOGENESIS embryo patterning zygote genome activation transcription factors GENOMICS TRANSCRIPTOMICS 

分 类 号：Q943.2[生物学—植物学]