Amitabh Joshi

Ph. D., F. A. Sc., F. N. A. Sc.

Professor of Evolutionary and Organismal Biology

 

1.  S. Dey and A. Joshi Local perturbations do not affect stability of laboratory fruitfly metapopulations, PloS ONE,  2, (2007).

2.  N. S. Bharathi, N. Archana, B. Anjana, K. M. Satish, J. Mohan and A. Joshi Time to death in the presence of E. coli: a mass-scale method for assaying pathogen resistance in Drosophila, Journal of Genetics,  86, 75 - 79 (2007).

3.  M. Rajamani, N. Raghavendra, N. G. Prasad, N. Archana, A. Joshi and M. Shakarad,  Reduced larval feeding rate is a strong evolutionary correlate of rapid development in Drosophila melanogaster, Journal of Genetics,  85, 209 - 212 (2006).

4.  S. Dey and A. Joshi Response to comment on "Stability via asynchrony in Drosophila metapopulations with low migration rates, Science,  314, 420 (2006).

5.  S. Dey and A. Joshi Stability via asynchrony in Drosophila metapopulations with low migration rates, Science,  312, 434 - 436 (2006).

6.  S. Dey, J. Mohan and A. Joshi Micro-environmental variation in pre-assay rearing conditions can lead to anomalies in the measurement of life-history traits, Journal of Genetics,  85, 53 - 56 (2006).

7.  S. Dey, S. Dabholkar and A. Joshi The effect of migration on metapopulation stability is qualitatively unaffected by demographic and spatial heterogeneity, Journal of Theoretical Biology,  238, 78 - 84 (2006).

8.  A. Joshi Behaviour genetics in the post-genomics era: from genes to behaviour and vice versa, Current Science,  89, 1128 - 1135 (2005).

9.  D. A. Paranjpe, D. Anitha, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Possible role of eclosion rhythm in mediating the effects of light-dark environments on pre-adult development in Drosophila melanogaster, BMC Developmental Biology,  5, 5 (2005).

10.  M. Shakarad, N. G. Prasad, K. Gokhale, V. Gadagkar, M. Rajamani and A. Joshi Faster development does not lead to correlated evolution of greater pre-adult competitive ability in Drosophila melanogaster, Biology Letters,  1, 91 - 94 (2005).

11.  A. Joshi Inbreeding and sex: canalization, plasticity and sexual selection, Journal of Genetics,  84, 13 - 15 (2005).

12.  A. Joshi Variation in the relative magnitude of intraspecific and interspecific competitive effects in novel versus familiar environments in two Drosophila species, Journal of Genetics,  83, 179 - 188 (2004).

13.  D. A. Paranjpe, D. Anitha, V. K. Sharma and A. Joshi Circadian clocks and life-history-related traits: is pupation height affected by circadian organization in Drosophila melanogaster?, Journal of Genetics,  83, 73 - 77 (2004).

14.  N. S. Bharathi, N. G. Prasad, M. Shakarad and A. Joshi Correlates of sexual dimorphism for dry weight and development time in five species of Drosophila, Journal of Zoology,  264, 87 - 95 (2004).

15.  D. A. Paranjpe, D. Anitha, A. Joshi and V. K. Sharma,  Multi-oscillatory control of eclosion and oviposition rhythms in Drosophila melanogaster: evidence from limits of entrainment studies, Chronobiology International,  21, 539 - 552 (2004).

16.  N. S. Bharathi, J. Mohan and A. Joshi A potential mass-scale assay for level of immune competence in Drosophila, Current Science,  86, 1482 - 1485 (2004).

17.  A. Joshi Are bigger flies always better: the role of genes and environment, Journal of Genetics,  83, 13 - 15 (2004).

18.  N. S. Bharathi, N. G. Prasad, M. Shakarad and A. Joshi Variation in adult life-history and stress resistance across five species of Drosophila, Journal of Genetics,  82, 191 - 205 (2003).

19.  A. Joshi, R. B. Castillo and L. D. Mueller,  The contribution of ancestry, chance, and past and ongoing selection to adaptive evolution, Journal of Genetics,  82, 147 - 162 (2003).

20.  N. G. Prasad and A. Joshi What have two decades of laboratory life-history evolution studies on Drosophila melanogaster taught us?, Journal of Genetics,  82, 45 - 76 (2003).

21.  N. G. Prasad, M. Shakarad, M. Rajamani and A. Joshi Interaction between the effects of maternal and larval nutritional levels on pre-adult survival in Drosophila melanogaster, Evolutionary Ecology Research,  5, 903 - 911 (2003).

22.  N. G. Prasad, S. Dey, M. Shakarad and A. Joshi The evolution of population stability as a by-product of life-history evolution, Proceedings of the Royal Society of London: Biological Sciences,  270, (2003).

23.  D. A. Paranjpe, D. Anitha, S. Kumar, D. Kumar, K. Verkhedkar, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Entrainment of eclosion rhythm in Drosophila melanogaster populations reared for more than 700 generations in constant light environment, Chronobiology International,  20, 977 - 987 (2003).

24.  V. Sheeba, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Developmental plasticity of the locomotor activity rhythm of Drosophila melanogaster, Journal of Insect Physiology,  48, 25 - 32 (2002).

25.  V. Sheeba, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Locomotor activity rhythm in Drosophila melanogaster after 600 generations in an aperiodic environment, Naturwissenschaften,  89, 512 - 514 (2002).

26.  A. Joshi Development and competition in fruit flies: a tale of two densities, Proceedings of the Indian National Science Academy B,  67, 389 - 396 (2001).

27.  V. Sheeba, M. Nihal, S. J. Mathew, N. M. Swamy, L. Bandhopadhyay, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Does the difference in the timing of eclosion of the fruit fly Drosophila melanogaster reflect differences in the circadian organization?, Chronobiology International,  18, 601 - 612 (2001).

28.  N. G. Prasad, M. Shakarad, D. Anitha, M. Rajamani and A. Joshi Correlated responses to selection for faster development and early reproduction in Drosophila: the evolution of larval traits, Evolution,  55, 1363 - 1372 (2001).

29.  M. Shakarad, N. G. Prasad, M. Rajamani and A. Joshi Evolution of faster development does not lead to greater fluctuating asymmetry of sternopleural bristle number in Drosophila, Journal of Genetics,  80, 1 - 7 (2001).

30.  V. Sheeba, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  A case for multiple oscillators controlling different rhythms in Drosophila melanogaster, Journal of Insect Physiology,  47, 1217 - 1225 (2001).

31.  V. Sheeba, M. K. Chandrashekaran, A. Joshi and V. K. Sharma,  Persistence of oviposition rhythm in individuals of Drosophila melanogaster reared in an aperiodic environment for several hundred generations, Journal of Experimental Zoology,  290, 541 - 549 (2001).

32.  S. Jaggi and A. Joshi Incorporating spatial variation in density enhances the stability of simple population dynamics models, Journal of Theoretical Biology,  209, 249 - 255 (2001).

33.  A. Joshi, N. G. Prasad and M. Shakarad,  K-selection, a-selection, effectiveness, and tolerance in competition: density-dependent selection revisited, Journal of Genetics,  80, 63 - 75 (2001).

34.  N. G. Prasad, M. Shakarad, V. M. Gohil, V. Sheeba, M. Rajamani and A. Joshi Evolution of reduced pre-adult viability and larval growth rate in laboratory populations of Drosophila melanogaster selected for shorter development time, Genetical Research,  76, 249 - 259 (2000).

35.  L. D. Mueller, A. Joshi and D. J. Borash,  Does population stability evolve?, Ecology,  81, 1273 - 1285 (2000).

36.  A. Joshi Life-history evolution in the laboratory, Journal of the Indian Institute of Science,  80, 25 - 37 (2000).

37.  V. Sheeba, V. K. Sharma, K. Shubha, M. K. Chandrashekaran and A. Joshi The effect of different light regimes on adult lifespan in Drosophila melanogaster is partly mediated through reproductive output, Journal of Biological Rhythms,  15, 380 - 392 (2000).

38.  V. Sheeba, V. K. Sharma, M. K. Chandrashekaran and A. Joshi Effect of different light regimes on pre-adult fitness in Drosophila melanogaster populations reared in constant light for over six hundred generations, Biological Rhythms Research,  30, 424 - 433 (1999).

39.  V. Sheeba, M. Rajamani and A. Joshi Bimodal distribution of oviposition preference for a novel food medium in Drosophila melanogaster, Current Science,  77, 1197 - 1200 (1999).

40.  V. Sheeba, V. K. Sharma, M. K. Chandrashekaran and A. Joshi Persistence of Drosophila eclosion rhythm after 600 generations in an aperiodic environment, Naturwissenschaften,  86, 448 - 449 (1999).

41.  A. Joshi, M. H. Do and L. D. Mueller,  Poisson distribution of male mating success in laboratory populations of Drosophila melanogaster, Genetical Research,  73, 239 - 249 (1999).

42.  A. Joshi and M. E. Moody,  The cost of sex revisited: effects of male gamete output of hermaphrodites that are asexual in their female capacity, Journal of Theoretical Biology,  195, 533 - 542 (1998).

43.  A. Joshi, W. A. Oshiro, J. Shiotsugu and L. D. Mueller,  Short and long-term effects of environmental urea on fecundity in Drosophila melanogaster, Journal of Biosciences,  23, 279 - 283 (1998).

44.  V. Sheeba:A. Joshi,  A test of simple models of population growth using data from very small populations of Drosophila melanogaster, Current Science,  75, 1406 - 1410 (1998).

45.  V. Sheeba, N. A. A. Madhyastha and A. Joshi Oviposition preference for novel versus normal food resources in laboratory populations of Drosophila melanogaster, Journal of Biosciences,  23, 93 - 100 (1998).

46.  D. J. Borash, A. G. Gibbs, A. Joshi and L. D. Mueller,  A genetic polymorphism maintained by natural selection in a temporally varying environment, American Naturalist,  151, 148 - 156 (1998).

47.  A. Joshi, W. Wu and L. D. Mueller,  Density-dependent natural selection in Drosophila: adaptation to adult crowding, Evolutionary Ecology,  12, 363 - 376 (1998).

48.  A. Joshi Adaptive evolution and the footprints of history, Current Science,  72, 944 - 949 (1997).

49.  A. Joshi Laboratory studies of density-dependent selection: adaptations to crowding in Drosophila melanogaster, Current Science,  72, 555 - 561 (1997).

50.  A. Joshi and L. D. Mueller,  Adult crowding effects on longevity in Drosophila melanogaster: increase in age-independent mortality, Current Science,  72, 255 - 260 (1997).

51.  A. Joshi and J. N. Thompson,  Adaptation and specialization in a two-resource environment in Drosophila species, Evolution,  51, 846 - 855 (1997).

52.  M. Santos, D. J. Borash, A. Joshi, N. Bounlutay and L. D. Mueller,  Density-dependent natural selection in Drosophila: evolution of growth rate and body size, Evolution,  51, 420 - 432 (1997).

53.  A. Joshi, W. A. Oshiro, J. Shiotsugu and L. D. Mueller,  Within- and among-population variation in oviposition preference for urea-supplemented food in Drosophila melanogaster, Journal of Biosciences,  22, 325 - 338 (1997).

54.  A. Joshi, J. Shiotsugu and L. D. Mueller,  Phenotypic enhancement of longevity by environmental urea in Drosophila melanogaster, Experimental Gerontology,  31, 533 - 544 (1996).

55.  A. Joshi and L. D. Mueller,  Density-dependent natural selection in Drosophila: trade-offs between larval food acquisition and utilization, Evolutionary Ecology,  10, 463 - 474 (1996).

56.  A. Joshi, C. D. Knight and L. D. Mueller,  Genetics of larval urea tolerance in Drosophila melanogaster, Heredity,  77, 33 - 39 (1996).

57.  A. Joshi and J. N. Thompson,  Evolution of broad and specific competitive ability in novel versus familiar environments in Drosophila species, Evolution,  50, 188 - 194 (1996).

58.  A. Joshi and M. E. Moody,  Male gamete output of asexuals and the dynamics of populations polymorphic for reproductive mode, Journal of Theoretical Biology,  174, 189 - 197 (1995).

59.  A. Joshi and J. N. Thompson,  Alternative routes to the evolution of competitive ability in two competing species of Drosophila, Evolution,  49, 616 - 625 (1995).

60.  A. Joshi and J. N. Thompson,  Trade-offs and the evolution of host specialization, Evolutionary Ecology,  9, 82 - 92 (1995).

61.  A. Joshi and L. D. Mueller,  Directional and stabilizing density-dependent natural selection for pupation height in Drosophila melanogaster, Evolution,  47, 176 - 184 (1993).

62.  A. Joshi and L. D. Mueller,  Evolution of higher feeding rate in Drosophila due to density-dependent natural selection, Evolution,  42, 1090 - 1092 (1988).

 

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