scholarly journals Few genetic and environmental correlations between life history and stress resistance traits affect adaptation to fluctuating thermal regimes

Heredity ◽  
2016 ◽  
Vol 117 (3) ◽  
pp. 149-154 ◽  
Author(s):  
T Manenti ◽  
J G Sørensen ◽  
N N Moghadam ◽  
V Loeschcke
Keyword(s):  
Life History ◽  
Stress Resistance ◽  
Environmental Correlations ◽  
Thermal Regimes ◽  
Resistance Traits

scholarly journals Effects of photoperiod on life-history and thermal stress resistance traits across populations ofDrosophila subobscura

2019 ◽  
Vol 9 (5) ◽  
pp. 2743-2754 ◽  
Author(s):  
Neda N. Moghadam ◽  
Zorana Kurbalija Novicic ◽  
Cino Pertoldi ◽  
Torsten N. Kristensen ◽  
Simon Bahrndorff
Keyword(s):  
Life History ◽  
Thermal Stress ◽  
Stress Resistance ◽  
Resistance Traits

scholarly journals Interactions with a Complex Microbiota Mediate a Trade-Off between the Host Development Rate and Heat Stress Resistance

2020 ◽  
Vol 8 (11) ◽  
pp. 1781
Author(s):  
Samuel Slowinski ◽  
Isabella Ramirez ◽  
Vivek Narayan ◽  
Medha Somayaji ◽  
Maya Para ◽  
...  
Keyword(s):  
Life History ◽  
Heat Stress ◽  
Stress Resistance ◽  
Life History Traits ◽  
Soil Microbes ◽  
Development Rate ◽  
Heat Stress Resistance ◽  
Host Life ◽  
Host Development ◽  
Resistance To Heat

Animals and plants host diverse communities of microorganisms, and these microbiotas have been shown to influence host life history traits. Much has been said about the benefits that host-associated microbiotas bestow on the host. However, life history traits often demonstrate tradeoffs among one another. Raising Caenorhabditis elegans nematodes in compost microcosms emulating their natural environment, we examined how complex microbiotas affect host life history traits. We show that soil microbes usually increase the host development rate but decrease host resistance to heat stress, suggesting that interactions with complex microbiotas may mediate a tradeoff between host development and stress resistance. What element in these interactions is responsible for these effects is yet unknown, but experiments with live versus dead bacteria suggest that such effects may depend on bacterially provided signals.

scholarly journals Effect of Selection for Pyrethroid Resistance on Abiotic Stress Tolerance in Aedes aegypti from Merida, Yucatan, Mexico

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 124
Author(s):  
Keenan Amer ◽  
Karla Saavedra-Rodriguez ◽  
William C. Black ◽  
Emilie M. Gray
Keyword(s):  
Life History ◽  
Abiotic Stress ◽  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Stress Resistance ◽  
Pyrethroid Resistance ◽  
Southern Mexico ◽  
Life History Parameters ◽  
Trade Offs ◽  
Selection For

The study of fitness costs of insecticide resistance mutations in Aedes aegypti has generally been focused on life history parameters such as fecundity, mortality, and energy reserves. In this study we sought to investigate whether trade-offs might also exist between insecticide resistance and other abiotic stress resistance parameters. We evaluated the effects of the selection for permethrin resistance specifically on larval salinity and thermal tolerance. A population of A. aegypti originally from Southern Mexico was split into two strains, one selected for permethrin resistance and the other not. Larvae were reared at different salinities, and the fourth instar larvae were subjected to acute thermal stress; then, survival to both stresses was compared between strains. Contrary to our predictions, we found that insecticide resistance correlated with significantly enhanced larval thermotolerance. We found no clear difference in salinity tolerance between strains. This result suggests that insecticide resistance does not necessarily carry trade-offs in all traits affecting fitness and that successful insecticide resistance management strategies must account for genetic associations between insecticide resistance and abiotic stress resistance, as well as traditional life history parameters.

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