Developmental and adult acclimation impact cold and drought survival of invasive tropical Drosophila kikkawai
| Autor: | Ankita Pathak, Chanderkala Lambhod, Ravi Parkash |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
QH301-705.5 Science Acclimatization Biology Drosophila kikkawai Energy metabolites 010603 evolutionary biology 01 natural sciences Stress resistance traits General Biochemistry Genetics and Molecular Biology 03 medical and health sciences chemistry.chemical_compound Quantitative Trait Heritable Stress Physiological Cold acclimation Animals Biology (General) 030304 developmental biology 0303 health sciences Resistance (ecology) Pigmentation fungi Developmental and adult acclimation Stress resistance Invasive tropical Drosophila kikkawai Trehalose Droughts Cold Temperature Horticulture chemistry Body color morphs Developmental plasticity Drosophila Seasons General Agricultural and Biological Sciences Desiccation Energy Metabolism Introduced Species Research Article |
| Zdroj: | Biology Open article-version (VoR) Version of Record Biology Open, Vol 10, Iss 6 (2021) |
| ISSN: | 2046-6390 |
| Popis: | Narrow distribution patterns of tropical Drosophila species are limited by lower resistance to cold or drought. In the invasive tropical Drosophila kikkawai, we tested whether developmental and adult acclimations at cooler temperatures could enhance its stress resistance level. Adult acclimation of winter collected body color morphs revealed a significant increase in the level of cold resistance. For light morph, its abundance during winter is not consistent with thermal-melanism hypothesis. However, higher cold acclimation capacity, as well as storage of energy metabolites could support its winter survival. In the wild-caught light and intermediate morphs, there is a lack of trade-off between cold and heat resistance but not in the case of dark morph. Developmental plasticity (15°C) resulted in the fivefold increase of cold survival at 0°C; and a twofold increase in desiccation resistance but a modest reduction (∼28–35%) in heat resistance as compared to morph strains reared at 25°C. Drought acclimation changes were significantly higher as compared with cold or heat pretreatment. We observed a trade-off between basal resistance and acclimation capacity for cold, heat, or drought resistance. For homeostatic energy balance, adult acclimation responses (cold versus drought; heat versus drought) caused compensatory plastic changes in the levels of proline or trehalose (shared patterns) but different patterns for total body lipids. In contrast, rapid cold or heat hardening-induced changes in energy metabolites were different as compared to acclimation. The ability of D. kikkawai to significantly increase stress tolerance through plasticity is likely to support its invasion potential. Summary: In body color morphs of tropical Drosophila kikkawai, plasticity induced a higher level of resistance to cold and drought as well as three energy metabolites, which are likely to support its invasive potential. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|