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Reproductive output is often constrained by availability of macronutrients, especially protein. Long‐term protein restriction, therefore, is expected to select for traits maximizing reproduction even under nutritional challenge. We subjected four replicate populations of Drosophila melanogaster to a complete deprivation of yeast supplement, thereby mimicking a protein‐restricted ecology. Following...
Described as a ‘rare genius’ by one of his close friends, Hermann Joseph Muller was one of the pioneers of modern genetics in the early decades of the twentieth century. Although his work on mutagenesis and mutations fetched him widespread recognition and glory, thanks to the Nobel Prize he received in 1946, the depth and breadth of his contributions to genetics and allied areas of biology are far...
Formulations from the traditional Indian medicine, Ayurveda, have long been considered to have potent life-style-enhancing effects, possibly by their effect(s) on key life-history attributes. Although several studies have reported beneficial effects of these formulations on different components of life history, few have investigated their concurrent influence on various life-history traits. Here,...
In naturally polygamous organisms such as Drosophila, sperm competitive ability is one of the most important components of male fitness and is expected to evolve in response to varying degrees of male–male competition. Several studies have documented the existence of ample genetic variation in sperm competitive ability of males. However, many experimental evolution studies have found sperm competitive...
Background Interlocus conflict predicts (a) evolution of traits, beneficial to males but detrimental to females and (b) evolution of aging and life-span under the influence of the cost of bearing these traits. However, there are very few empirical investigations shedding light on these predictions. Those that do address these issues, mostly reported response of male reproductive traits or the lack...
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