Profiles

Ramprasad Neethiraj

Ramprasad Neethiraj

FD

Visa sidan på svenska
Works at Department of Zoology
Telephone 08-16 40 09
Email ramprasad.neethiraj@zoologi.su.se
Visiting address Svante Arrhenius väg 20b
Room E449
Postal address Zoologiska institutionen: Populationsgenetik 106 91 Stockholm

Publications

A selection from Stockholm University publication database
  • 2016. Maria de la Paz Celorio-Mancera (et al.). BMC Evolutionary Biology 16

    Background: Although most insect species are specialized on one or few groups of plants, there are phytophagous insects that seem to use virtually any kind of plant as food. Understanding the nature of this ability to feed on a wide repertoire of plants is crucial for the control of pest species and for the elucidation of the macroevolutionary mechanisms of speciation and diversification of insect herbivores. Here we studied Vanessa cardui, the species with the widest diet breadth among butterflies and a potential insect pest, by comparing tissue-specific transcriptomes from caterpillars that were reared on different host plants. We tested whether the similarities of gene-expression response reflect the evolutionary history of adaptation to these plants in the Vanessa and related genera, against the null hypothesis of transcriptional profiles reflecting plant phylogenetic relatedness. Result: Using both unsupervised and supervised methods of data analysis, we found that the tissue-specific patterns of caterpillar gene expression are better explained by the evolutionary history of adaptation of the insects to the plants than by plant phylogeny. Conclusion: Our findings suggest that V. cardui may use two sets of expressed genes to achieve polyphagy, one associated with the ancestral capability to consume Rosids and Asterids, and another allowing the caterpillar to incorporate a wide range of novel host-plants.

Show all publications by Ramprasad Neethiraj at Stockholm University

Last updated: February 25, 2019

Bookmark and share Tell a friend