Development and Cell Cycle Activity of the Root Apical Meristem in the Fern Ceratopteris Richardii
G C A T T A C G G C A T genes Article Development and Cell Cycle Activity of the Root Apical Meristem in the Fern Ceratopteris richardii Alejandro Aragón-Raygoza 1,2 , Alejandra Vasco 3, Ikram Blilou 4, Luis Herrera-Estrella 2,5 and Alfredo Cruz-Ramírez 1,* 1 Molecular and Developmental Complexity Group at Unidad de Genómica Avanzada, Laboratorio Nacional de Genómica para la Biodiversidad, Cinvestav Sede Irapuato, Km. 9.6 Libramiento Norte Carretera, Irapuato-León, Irapuato 36821, Guanajuato, Mexico; aragon.alejandro89@gmail.com 2 Metabolic Engineering Group, Unidad de Genómica Avanzada, Laboratorio Nacional de Genómica para la Biodiversidad, Cinvestav Sede Irapuato, Km. 9.6 Libramiento Norte Carretera, Irapuato-León, Irapuato 36821, Guanajuato, Mexico; lherrerae@cinvestav.mx 3 Botanical Research Institute of Texas (BRIT), Fort Worth, TX 76107-3400, USA; avascog@gmail.com 4 Laboratory of Plant Cell and Developmental Biology, Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; ikram.blilou@kaust.edu.sa 5 Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA * Correspondence: alfredo.cruz@cinvestav.mx Received: 27 October 2020; Accepted: 26 November 2020; Published: 4 December 2020 Abstract: Ferns are a representative clade in plant evolution although underestimated in the genomic era. Ceratopteris richardii is an emergent model for developmental processes in ferns, yet a complete scheme of the different growth stages is necessary. Here, we present a developmental analysis, at the tissue and cellular levels, of the first shoot-borne root of Ceratopteris.
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