Sex versus parthenogenesis: A transcriptomic approach of photoperiod response in the model aphid Acyrthosiphon pisum (Hemiptera: Aphididae)

Cortes, Teresa; Tagu, Denis; Simon, Jean‐Christophe; Moya, Andrés; Martínez‐Torres, David

doi:10.1016/j.gene.2007.10.030

Cited by 41 publications

(42 citation statements)

References 30 publications

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“…Recent studies on the effects of photoperiod on perthenogenesis lifecycle have been developed in the field of research for gene expression (Ramos et al 2003;Cortes et al 2008;Le Trionnaire et al 2009). Therefore, the hypothesis that short photoperiod and/or temperature in autumn affects the development of flight apparatus of T. quercicola could not be ruled out.…”

Section: Discussionmentioning

confidence: 99%

Seasonal changes in the flight apparatus of winged females and sexual males of the aphid Tuberculatus quercicola (Hemiptera: Aphididae)

Yao

2012

Appl Entomol Zool

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Tuberculatus quercicola (Matsumura) feeds on Quercus dentata Thunberg, and exhibits mutualistic interactions with ants. Tuberculatus quercicola has two winged morphs in its life cycle, winged females appear in summer and sexual males appear in autumn. Previous studies have shown that winged females exhibit higher wing loading (ratio of body volume to wing area) due to ant attendance, resulting in extremely low dispersal rates. It is known that the nutritional quality of host plants is high in spring and autumn, when leaves are growing or senescent, and low in summer when leaves are mature. The present study examined the effects of seasonal plant deterioration on the development of flight apparatus (wing size and flight muscle) of winged females and males. Moreover, field intercept traps were used to examine the extent of dispersal by males. The results showed that seasonal plant deterioration affected flight apparatus development in winged females, particularly flight muscle. Flight muscle development was significantly higher in winged males in autumn than in winged females. However, winged males were not caught in any of the traps. The difference in resource allocation to the flight apparatus between winged females and males is discussed.

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Section: Discussionmentioning

confidence: 99%

Seasonal changes in the flight apparatus of winged females and sexual males of the aphid Tuberculatus quercicola (Hemiptera: Aphididae)

Yao

2012

Appl Entomol Zool

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“…Regulation of different CP genes was further reported by Cortes et al (2008). This second study was performed on the whole body of G0 adult pea aphid (the grand-mother generation) reared under long days or short days.…”

Section: Groupmentioning

confidence: 90%

“…regulated by a circadian clock, even if this remains to be demonstrated. For this reason, Cortes et al (2008) observed, by qPCR performed on two pea aphid CP genes, regular variation of their transcript level within a 24-h period. Thus pea aphid CP genes can be subjected to circadian regulation.…”

Section: Groupmentioning

confidence: 99%

“…Different recent studies revealed an unexpected strong regulation of CP genes by photoperiod changes in aphids (Le Trionnaire et al, 2007;Cortes et al, 2008;Le Trionnaire et al, 2009). Aphids modify their reproductive mode accordingly to seasonal photoperiodism: they alternate several successive parthenogenetic generations in spring and summer and a single sexual generation in autumn (Simon et al, 2002).…”

Section: Introductionmentioning

confidence: 96%

“…In our group, global analyses were performed in order to identify genes and biological functions involved in seasonal photoperiodism (Cortes et al, 2008;Le Trionnaire et al, 2007;Ramos et al, 2003;Le Trionnaire et al, 2009). These studies demonstrate that genes encoding CPs and genes involved in cuticle modification processes are regulated by photoperiod shortening.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cuticular proteins and seasonal photoperiodism in aphids

Gallot¹,

Rispe²,

Leterme³

et al. 2010

Insect Biochemistry and Molecular Biology

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Screening and identification of differentially expressed genes in goose hepatocytes exposed to free fatty acid

Pan¹,

Wang²,

Kang³

et al. 2010

J of Cellular Biochemistry

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The overaccumulation of triglycerides in hepatocytes induces hepatic steatosis; however, little is known about the mechanism of goose hepatic steatosis. The aim of this study was to define an experimental model of hepatocellular steatosis with TG overaccumulation and minimal cytotoxicity, using a mixture of various proportions of oleate and palmitate free fatty acids (FFAs) to induce fat-overloading, then using suppressive subtractive hybridization and a quantitative PCR approach to identify genes with higher or lower expression levels after the treatment of cells with FFA mixtures. Overall, 502 differentially expressed clones, representing 21 novel genes and 87 known genes, were detected by SSH. Based on functional clustering, up- and down-regulated genes were mostly related to carbohydrate and lipid metabolism, enzyme activity and signal transduction. The expression of 20 selected clones involved with carbohydrate and lipid metabolism pathways was further studied by quantitative PCR. The data indicated that six clones similar to the genes ChREBP, FoxO1, apoB, IHPK2, KIF1B, and FSP27, which participate in de novo synthesis of fatty acid and secretion of very low density lipoproteins, had significantly lower expression levels in the hepatocytes treated with FFA mixtures. Meanwhile, 13 clones similar to the genes DGAT-1, ACSL1, DHRS7, PPARα, L-FABP, DGAT-2, PCK, ACSL3, CPT-1, A-FABP, PPARβ, MAT, and ALDOB had significantly higher expression levels in the hepatocytes treated with FFA mixtures. These results suggest that several metabolic pathways are altered in goose hepatocytes, which may be useful for further research into the molecular mechanism of goose hepatic steatosis.

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Sex versus parthenogenesis: A transcriptomic approach of photoperiod response in the model aphid Acyrthosiphon pisum (Hemiptera: Aphididae)

Cited by 41 publications

References 30 publications

Seasonal changes in the flight apparatus of winged females and sexual males of the aphid Tuberculatus quercicola (Hemiptera: Aphididae)

Seasonal changes in the flight apparatus of winged females and sexual males of the aphid Tuberculatus quercicola (Hemiptera: Aphididae)

Cuticular proteins and seasonal photoperiodism in aphids

Screening and identification of differentially expressed genes in goose hepatocytes exposed to free fatty acid

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