Kannan Pachamuthu

ORCID: 0000-0002-9823-044X
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Plant Molecular Biology Research
  • Chromosomal and Genetic Variations
  • Plant Reproductive Biology
  • Plant nutrient uptake and metabolism
  • Plant Virus Research Studies
  • Legume Nitrogen Fixing Symbiosis
  • Plant Physiology and Cultivation Studies
  • Genetic Mapping and Diversity in Plants and Animals
  • Plant-Microbe Interactions and Immunity
  • Postharvest Quality and Shelf Life Management
  • Plant Gene Expression Analysis
  • Flowering Plant Growth and Cultivation
  • Photosynthetic Processes and Mechanisms
  • Diatoms and Algae Research
  • Fungal Plant Pathogen Control
  • Greenhouse Technology and Climate Control
  • Plant tissue culture and regeneration
  • Fungal and yeast genetics research
  • Plant Disease Resistance and Genetics
  • CRISPR and Genetic Engineering
  • Genomics and Chromatin Dynamics

Institut Jean-Pierre Bourgin
2021-2024

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021-2024

Tata Institute of Fundamental Research
2018-2023

National Centre for Biological Sciences
2018-2023

Vellore Institute of Technology University
2023

AgroParisTech
2021-2022

Université Paris-Saclay
2021-2022

Madurai Kamaraj University
2021

Govind Ballabh Pant University of Agriculture and Technology
2011

Texas A&M University
1999

Abstract Domestication of rice (Oryza sativa) included conversion perennial wild species with few seeds to short plants that produced abundant seeds. Most domestication-associated changes were due variations in transcription factors and other key proteins such as enzymes. Here, we show multiple yield-related traits associated indica domestication are linked micro (mi) RNA-mediated regulation. Analysis small (s) RNA data sets from cultivated lines, a landraces, two relatives revealed the...

10.1105/tpc.18.00472 article EN cc-by The Plant Cell 2018-10-19

Abstract In plants, small-interfering RNAs (siRNAs) mediate epigenetic silencing via the RNA-directed DNA methylation (RdDM) pathway, which is particularly prominent during reproduction and seed development. However, there limited understanding of origins dynamics reproductive siRNAs acting in different cellular developmental contexts. Here, we used RNaseIII-like protein RTL1 to suppress siRNA biogenesis Arabidopsis pollen, found distinct subsets produced pollen We demonstrate that...

10.1038/s41467-024-48950-6 article EN cc-by Nature Communications 2024-05-30

Abstract Nitrate is an important nutrient and a key signalling molecule for plant development. A number of transcription factors involved in the response to nitrate their regulatory mechanisms have been identified. However, little known about sensing among crop plants. In this study, we identified functions nitrate-responsive miR444:MADS-box factor OsMADS27 module its downstream targets mediating rice root growth stress responses. Transgenic plants expressing miR444 target mimic improved...

10.1093/jxb/erac083 article EN Journal of Experimental Botany 2022-03-02

The triploid block, which prevents interploidy hybridizations in flowering plants, is characterized by a failure endosperm development, arrest embryogenesis, and seed collapse. Many genetic components of lethality have been successfully identified the model plant Arabidopsis thaliana, most notably paternally expressed genes (PEGs), are upregulated tetraploid with paternal excess. Previous studies shown that epigenome key determinant block response, as loss DNA methylation diploid pollen...

10.1093/plcell/koab284 article EN cc-by The Plant Cell 2021-11-15

Across eukaryotes, gene regulation is manifested via chromatin states roughly distinguished as heterochromatin and euchromatin. The establishment, maintenance, modulation of the mediated using several factors including modifiers. However, that avoid intrusion silencing signals into protein-coding genes are poorly understood. Here we show a plant specific paralog RNA polymerase (Pol) II, named Pol IV, involved in avoidance facultative heterochromatic marks genes, addition to its...

10.1101/gr.277353.122 article EN cc-by-nc Genome Research 2023-05-01

Summary RNA‐dependent RNA polymerases (RDR) generate double‐stranded (ds)RNA triggers for silencing across eukaryotes. Among the three clades, α‐clade and β‐clade members are key components of mediators stress responses However, γ‐clade unusual in that they represented phylogenetically distant plants fungi, their functions unknown. Using genetic, bioinformatic biochemical methods, we show RDRs from Oryza sativa L. involved plant development as well regulation expression coding noncoding...

10.1111/nph.17700 article EN New Phytologist 2021-08-27

<title>Abstract</title> <bold>In plants, small-interfering RNAs (siRNAs) are mainly produced from transposable elements (TEs) within the RNA-directed DNA methylation pathway (RdDM), which is particularly important during reproductive development in many plant species. However, there limited understanding of origins, dynamics and function TE-derived siRNAs acting different cellular developmental contexts. Here, we used RNaseIII-like protein RTL1 to suppress siRNA biogenesis specifically...

10.21203/rs.3.rs-2947716/v1 preprint EN cc-by Research Square (Research Square) 2023-05-31

Sheath blight disease caused by Rhizoctonia solani is a major constraint for rice production. In order to obtain transgenic resistance against sheath disease, an indica variety Pusa Basmati1 (PB1) was transformed with constitutively express chitinase (chi11) and β-1,3-glucanase (GLU) genes. A single-copy PB1-CG27 showed high level of tolerance R. solani. Here, we report the introgression from into non-basmati variety, White Ponni (WP) through backcross breeding. each four generations,...

10.5958/0975-6906.2017.00066.9 article EN Indian Journal of Genetics and Plant Breeding (The) 2017-01-01

Abstract Across eukaryotes, gene regulation is manifested via chromatin states roughly distinguished as heterochromatin and euchromatin. The establishment, maintenance modulation of the mediated using several factors including modifiers. However, that avoid intrusion silencing signals into protein coding genes are poorly understood. Here we show a plant specific paralogue RNA polymerase (pol) II, named pol IV, involved in avoidance facultative heterochromatic marks genes, addition to its...

10.1101/2021.08.25.457601 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-08-25
Coming Soon ...