In the second installment of our series of reviews on the lab's favourite papers, Shubha Govindarajan writes about a classic paper that gave a new perspective on individual variation and tradeoffs. Read on! Fig 1 from van Noordwijk & de Jong 1986, American Naturalist Acquisition and Allocation of Resources: Their Influence on Variation in Life... Continue Reading →
We're starting a series of reviews of the lab's favourite papers. Here's the first review by Shyam Buddh, featuring the famous LTEE lines. Enjoy! Dynamics of adaptation and diversification: a 10,000-generation experiment with bacterial populations R E Lenski, M Travisano Proceedings of the National Academy of Sciences Jul 1994, 91 (15) 6808-6814 If we classify... Continue Reading →
The world around us is full of microbes that influence both biotic and abiotic components of ecosystems. For instance, nitrogen-fixing bacteria enrich the soil1, and algae in marine ecosystems provide sustenance to a variety of organisms2,3. On the other hand, pathogenic bacteria cause diseases across trophic levels, changing the environment around them dramatically. Such interactions have been extensively studied for a long period of time. However, non-pathogenic host-bacterial associations also influence host physiology and even host behaviour4,5. For example, in mice, differences in gut bacterial communities determine utilization of specific dietary components and the propensity for diseases like obesity and diabetes6,7. Gut bacteria are also linked to several neurological disorders such as depression and anxiety8. Such dependence of animal hosts on their gut microbes is not limited to humans, but extends across the tree of life.
Aparna Agarwal, Kruttika Phalnikar and Deepa Agashe This article originally appeared in the 2016 edition of IMPRINT, the science magazine of the Dept of Zoology, St. Xavier's College, Mumbai. The issue focused on life in the dark, and we wrote about evolutionary adaptations to darkness. We thought we would share it with others. --- Look... Continue Reading →