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Updated: Aug 8, 2026

Live Imaging Characterization of Centromere Movements During Male Meiotic Prophase in Arabidopsis thaliana
Published on: October 24, 2025
Genetics of meiotic prophase I in plants
Olivier Hamant1, Hong Ma, W Zacheus Cande
1Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA. ohamant@ens-lyon.fr
Abstract:
During meiotic prophase I, traits are reassorted as a result of a highly organized process involving sister chromatid cohesion, homologous chromosome alignment, pairing, synapsis, and recombination. In the past two years, a number of components involved in this pathway, including Structure Maintenance of Chromosomes (SMC), MRE11, the RAD51 homologs, BRCA2, MSH4, MER3, and ZIP1, have been characterized in plants; in addition, several genes that encode components unique to plants, such as POOR HOMOLOGOUS SYNAPSIS 1 and AMEIOTIC 1, have been cloned. Based on these recent data, essentially from maize and Arabidopsis, we discuss the conserved and plant-specific aspects of meiosis commitment and meiotic prophase I features.
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