Dr. Parimalan R

Dr. Parimalan R
Principal Scientist

Division/RS/Unit

Division of Genomic Resources

Contact

Phone:011-25802889
Email:r.parimalan(AT)icar.gov.in,        parimalan.r(AT)gmail.com

Qualification

Degree Discipline Year
M.Sc. (Ag.) Plant Breeding and Genetics 2003
Ph.D Biotechnology 2009
Post-doctorate Transcriptomics 2016

SPECIALIZATION

Agricultural Biotechnology

Salient Achievements

  • In sesame, 5856 accessions that were being conserved in the Indian National Genebank were genotyped using ddRAD-seq approach.
  • Generated plastid genome and chromosome-scale draft genome assemblies for sesame and wild rice species.
  • Proposed for a multi-cell C4 photosynthetic pathway (non-Kranz and NAD-ME dependent) involving three tissue types (outer pericarp, inner pericarp, and endosperm) in developing wheat grains.
  • Discovery of an in planta photorespiratory bypass mediated through chloroplastic pyruvate dehydrogenase gene (cpPdc) in developing rice grains, and this happens to be the shortest C2 shuttle known.
  • Discovery of a non-Kranz NAD-ME dependent C4 photosynthetic pathway in developing wheat grains – a classical C3
  • Proposed for the evolution of an intermediate type C4 photosynthesis (without Kranz) in non-foliar photosynthetic organ (developing grain) in BOP clade (eg: wheat, barley) prior to the evolution of an efficient foliar C4 photosynthesis in PACMAD clade (eg: maize, sorghum)
  • Proposed a concept through transcriptome studies in sesame, longer duration of expression of the genes of oil biosynthesis (early onset, by 10 dpa and sustained till 30 dpa) accommodates a broader window of time for active oil accumulation is crucial for higher oil yield in sesame.
  • Identification of novel genes and involvement of genes known for carbohydrate metabolism in imparting heat stress tolerance during grain filling in wheat using RNA-seq approach.
  • Involved in multiplication and screening of wheat germplasm collection being conserved at the Indian National Genebank that had resulted in identification of novel genetic stocks.

Awards/Honours

  • Serving as an editor in BMC Genomics, Frontiers in Plant Science, and Plant Molecular Biology Reporter
  • Recipient of “Fellow of Indian Society of Plant Genetic Resources-2019” from ISPGR
  • Recipient of “Dr APJ Abdul Kalam Best Scientist award-2020” from Bose Science Society
  • Recipient of “Dr RS Paroda Young Scientist award-2017” from ISPGR.
  • Recipient of Michael D Gale Travel grant award to attend XXV PAG conference at San Diego, USA during January 14-18, 2017 to present the work on “Discovery of the C4 photosynthetic pathway in developing wheat grains.”
  • Delivered an invited lecture at 104th Indian Science Congress, Tirupati during January 3-7, 2017 on “Bose anatomy – the non-Kranz anatomical accomplishment of C4 photosynthesis.”
  • Delivered invited talks on “Discovery of C4 photosynthesis in wheat grains” at Division of Plant Physiology, IARI, New Delhi and at CPBG, TNAU, Coimbatore on 17th Sep 2016 and 23rd Dec 2016 respectively
  • Conferred with Honorary Senior Research Fellow at QAAFI, The UQ, St Lucia, Australia since June 2016
  • Recipient of the Indo-Australian Career Boosting Gold Fellowship to pursuing Post-Doctoral research was awarded by DBT, Govt. of India
  • Awarded with DST young scientist project on polyamines and abiotic stress tolerance
  • ARS-NET holder
  • CSIR-JRF-NET holder
  • MSc Merit scholarship award for meritorious students at University level in TNAU
  • University gold medalist in graduation level at TNAU

Recent Publications Research Papers

  • Maurya, R., Singh, S., Babu, Y.S., Khan, F.N., Nawade, B., Vishwakarma, H., Kumar, A., Yadav, R., Jalli, R., Angamuthu, M., Alagirisamy, M., Subramani, R., Govindasamy, S., Kumar, A., Singh, K., and Rangan, P*.  2024.  Molecular diversity studies and core development in sesame germplasm (Sesamum indicum L.) using SSR markers.  Plant Molecular Biology Reporter, Published online 23-Jul-2024 (https://link.springer.com/article/10.1007/s11105-024-01476-z)
  • Kumar, A., Batra, T., Vishwakarma, H., Maurya, R., Ruperao, P., Yadav, R., Subramani, R., Singh, G.P., and Rangan, P*.  2024.  Genome-wide analysis of the calmodulin-binding transcription activator (CAMTA) gene family in Sesamum indicum L., and its role in abiotic stress tolerance traits.  Plant Stress, 13: 100532. 
  • Rangan, P*., Wankhede, DP., Rajkumar, S., Chinnusamy, V., Pathania, P., Bartwal, A., Malik, SK., Baig, MJ., Rai, AK., and Singh, K.  2024.  Rice transcriptomics reveal the genetic determinants of an in planta photorespiratory bypass: a novel way to increase biomass in C3 plants.  Plant Mol. Biol. Rep., published online (18-May-2024) https://rdcu.be/dIlEn
  • Pradeep, R., Bajaj, P, Yadav, R, Angamuthu, M, Subramani, R, Rai, V, Tiwari, K, Rathore, A, Singh, K, Singh, G.P, Angadi, U.B, Mayes, S, and Rangan, P*.  2024.  Double-digest restriction-associated DNA sequencing-based genotyping and its applications in sesame germplasm management.  The Plant Genome, 17: e20447. 
  • Rangan, P*., Furtado, A., Chinnusamy, V., and Henry, R.  2024.  A multi-cell model for the C4 photosynthetic pathway in developing wheat grains based upon tissue-specific transcriptome data.  BioSystems, 238: 105195.
  • Rangan, P.*, Pradheep, K., Mahalingam, A., Mohan, J., Yadav, R., and Singh, K.  2024.  Trans situ conservation strategies to conserve the extinction risk species, Sesamum prostratum Retz., a crop wild relative of sesame being endemic to coastal strand habitat: a case study.  Genet. Resour. Crop Evol., 71: 511-517.
  • Ruperao, P., Bajaj, P., Subramani, R., Yadav, R., Lachagari, V.B.R., Lekkala, S.P., Rathore, A., Archak, S., Angadi, U.B., Singh, R., Singh, K., Mayes, S., and Rangan, P*.  2023.  A pilot-scale comparison between single and double-digest RAD markers generated using GBS strategy in sesame (Sesamum indicum L.).  PLoS One, 18(6): e0286599.  
  • Nawade, B., Kumar, A., Maurya, R., Subramani, R., Yadav, R., Singh, K., and Rangan, P*.  2022.  Longer duration of active oil biosynthesis during seed development is crucial for high oil yield – lessons from genome-wide in silico mining and RNA-seq validation in sesame.  Plants, 11: 2980. 
  • Rangan, P*., Pradheep, K., Mahalingam, A., and Senthilraja, G.  2022.  Decline in occurrence and distribution of Sesamum prostratum, a crop wild relative of sesame, along the Eastern coastal region of India.  Ind. J. Plant Genet. Res., 35(1): 4-10.
  • Rangan, P*., Wankhede, DP., Rajkumar, S., Chinnusamy, V., Malik, SK., Baig, MJ., Singh, K., and Henry, R.  2022.  Evolution of an intermediate C4 photosynthesis in the non-foliar tissues of the Poaceae.  Photosynthesis Research, 153: 125-134.

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