My research seeks to uncover the mechanisms leading to the establishment and maintenance of mutually beneficial relationships between species, and to elucidate the consequences of such relationships on genome evolution.

It is well known that mutualisms are not as unstable as originally thought, but the mechanisms underlying their maintenance over evolutionary times are unknown.
How does a species develop mutualistic traits? Is it by altering the sequence and/or expression of existing genes or by recruiting novel genes and/or pathways?
What are the consequences of the evolution of mutualistic life history in a species genome? How does it alter selection pressures genome-wide and at genes related to the dialog between partners? What is the genomic signature of the increased specific diversity promoted by mutualistic relationships?

I use multidisciplinary approaches, combining fieldwork in tropical regions, behavioural assays in controlled conditions, and cutting-edge wet lab techniques to tackle the most pressing issues in the global theory of cooperation and mutualism.


Dept. Organismic and Evolutionary Biology
Museum of Comparative Zoology
Harvard University
26 Oxford Street
Cambridge MA, 02138
Location: Museum of Comparative Zoology
Email : pjg.male*a*
Web: Scholar / ResearchGate / LinkedIn

My current research project

2 weeks ago

Cold temperatures slow down chemical reactions, even within living organisms. That is why we store fresh food in the fridge: it slows down the development of bacteria by slowing down the chemical reactions that allow them to grow. At the lab, I put my tubes in ice to prevent enzymes from degrading the DNA of my samples. For long term preservation, samples are stored in the freezer at -20°C or even at -80°C for the most sensistive ones.
Enjoy your weekend!

Le froid ralentit les réactions chimiques, même à l'intérieur des êtres vivants. C'est pourquoi on stocke les aliments frais au réfrigérateur : cela ralentit le développement des bactéries en ralentissant les réactions chimiques qui leur permettent de pousser. Au labo, je mets mes tubes dans la glace pour empêcher des enzymes de dégrader l'ADN de mes échantillons. Pour le stockage, les échantillons vont au congélateur à -20°C, voire à -80°C pour les plus sensibles.
Bon week-end !
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