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Differential tolerance capacity to unfavourable low and high temperatures between two invasive whiteflies - PubMed

️Fri Jan 01 2016

Differential tolerance capacity to unfavourable low and high temperatures between two invasive whiteflies

Na Xiao et al. Sci Rep. 2016.

Abstract

Thermal response and tolerance to ambient temperature play important roles in determining the geographic distribution and seasonal abundance of insects. We examined the survival and performance, as well as expression of three heat shock protein related genes, of two species of invasive whiteflies, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), of the Bemisia tabaci species complex following exposure to a range of low and high temperatures. Our data demonstrated that the MED species was more tolerant to high temperatures than the MEAM1 species, especially in the adult stage, and this difference in thermal responses may be related to the heat shock protein related genes hsp90 and hsp70. These findings may assist in understanding and predicting the distribution and abundance of the two invasive whiteflies in the field.

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Figures

**Figure 1. Performance of MEAM1 and MED eggs following exposure to high temperatures.**
Data are presented as mean ± SE of five replicates. In no case do the two mean percentages of egg hatch between the two whitefly species differ significantly as determined by independent-sample Student-t test (P > 0.05).

**Figure 2. Performance of pupae following exposure to high temperatures.**
Data are presented as mean ± SE of five replicates. In no case do the two mean percentages of adult emergence between the two whitefly species differ significantly as determined by independent-sample Student-t test (P > 0.05).

**Figure 3. Performance of adults following exposure to low temperatures.**
Data are presented as mean ± SE of five replicates. In no case do the two mean percentages of adult mortality between the two whitefly species differ significantly as determined by independent-sample Student-t test (P > 0.05).

**Figure 4. Performance of adults following exposure to high temperatures.**
Data are presented as mean ± SE of 10 replicates. (A) Percentages of mortality of adults of the two whitefly species from Zhejiang; **indicate significant difference between the two means at a given temperature (independent- samples Student-t test, P < 0.01). (B) Percentages of mortality of female and male adults of MEAM1from Zhejiang; in no case do the two mean percentages differ significantly (P > 0.05). (C) Percentages of mortality of female and male adults of MED from Zhejiang; in no case do the two mean percentages differ significantly (P > 0.05). (D) Percentages of mortality of adults of the two whitefly species from Guangdong; **indicate significant difference between the two means at a given temperature (P < 0.01). (E) Percentages of mortality of female and male adults of MEAM1 from Guangdong; in no case do the two mean percentages differ significantly (P > 0.05). (F) Percentages of mortality of female and male adults of MED from Guangdong; in no case do the two mean percentages differ significantly (P > 0.05).

**Figure 5. Levels of relative expression of heat shock protein related genes in MEAM1 and MED following exposure to high temperatures.**
Data are presented as mean ± SE of five replicates. Different letters above the four bars of each gene indicate significant differences between them as determined by a two-way ANOVA (LSD, P < 0.05).

Cited by

Predicting Climate Change Effects on the Potential Distribution of Two Invasive Cryptic Species of the Bemisia tabaci Species Complex in China.
Xue Y, Lin C, Wang Y, Liu W, Wan F, Zhang Y, Ji L. Xue Y, et al. Insects. 2022 Nov 23;13(12):1081. doi: 10.3390/insects13121081. Insects. 2022. PMID: 36554991 Free PMC article.
Genome-Wide Identification and Analysis of the Heat-Shock Protein Gene Superfamily in Bemisia tabaci and Expression Pattern Analysis under Heat Shock.
Zheng HY, Qin PH, Yang K, Liu TX, Zhang YJ, Chu D. Zheng HY, et al. Insects. 2022 Jun 23;13(7):570. doi: 10.3390/insects13070570. Insects. 2022. PMID: 35886746 Free PMC article.
Knockdown of heat shock transcription factor 1 decreases temperature stress tolerance in Bemisia tabaci MED.
Bai J, Liu YC, Wei R, Wang YC, Gong WR, Du YZ. Bai J, et al. Sci Rep. 2022 Sep 26;12(1):16059. doi: 10.1038/s41598-022-19788-z. Sci Rep. 2022. PMID: 36163391 Free PMC article.
Molecular Cloning and Expression Profiles of Thermosensitive TRP Genes in Agasicles hygrophila.
Jia D, Ji Z, Yuan X, Zhang B, Liu Y, Hu J, Wang Y, Li X, Ma R. Jia D, et al. Insects. 2020 Aug 13;11(8):531. doi: 10.3390/insects11080531. Insects. 2020. PMID: 32823776 Free PMC article.

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Differential tolerance capacity to unfavourable low and high temperatures between two invasive whiteflies - PubMed