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An Integrated Approach for Studying Meiosis in Plants

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Dr. Aditya Nayak

Dr. Aditya Nayak

ETH Zurich

Dr. Aditya Nayak is a biochemist based at the Plant Evolutionary Genetics Group at the Institute of Molecular Plant Biology, ETH Zurich. Dr. Nayak received his PhD in integrated structural biology from the Commissariat à l'énergie atomique et aux énergies alternatives (CEA, Grenoble) and Université Grenoble Alpes (Grenoble, France) in 2019, where he worked on understanding molecular mechanisms behind temperature sensing in plants using an integrated structural biology approach. Since August 2019 he is a researcher at the IMPB, ETH Zurich. His current research is to understand molecular mechanisms that are behind the formation and assembly of the Meiotic Synaptonemal Complex (SC) in plants. He studies naturally occurring variants of the SC proteins from diploid and tetraploid Arabidopsis arenosa populations with an aim to screen for variants that might lead to stable meiosis at a higher temperature. Such protein variants could be useful mainly in the context of climate change and global warming.  

Collection Overview

Meiosis is a process that leads to the creation of haploid gametes in eukaryotes from diploid parent cells and generates genetic variation in species by recombination. In plants, this process is critically important for generating newer traits that can be selected for agriculture and increasing food production. It has been shown that plants can increase their ploidy from diploid to tetraploid and can stably maintain a tetraploid genome. Also, plants can be chemically induced to be polyploids and in fact, at times (upon stabilization) this leads to better traits such as bigger fruits, larger leaves, larger seeds, and bigger flowers, sometimes referred to as polyploidy related hybrid vigor.

In recent years, the field of plant meiosis has witnessed a revolution in understanding the inner working of this process at a molecular level. These advances have been fueled predominantly by cytogenetics, immunohistology, and chromosome analysis. More recently, biochemistry and structural biology-oriented methods are helping to further unravel the mysteries of how certain complex functions are achieved during the process of meiosis. 

This methods collection is aimed to serve as a repository to visualize some of these methods that can be applied to study meiosis in newer crop plants. We will accept methods pertaining to:

  1. Novel methods to study meiosis led to recombination in plants.
  2. Immunocytology to visualize meiosis and recombination in crop plants.
  3. Generation of polyploidy in novel crops and visualization of meiosis in polyploid plants.
  4. Purification and characterization of meiosis-related proteins in plants/crops.

 

 

Articles

Three-Dimensional Immunolocalization In Maize Meiocytes
9:31

Three-Dimensional Immunolocalization In Maize Meiocytes

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2026

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Abstracts

Immunolocalization in maize meiocytes

Arnaud Ronceret*1

1Instituto de Biotecnología - UNAM