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Variation in life history traits and transcriptome associated with adaptation to diet shifts in the ladybird Cryptolaemus montrouzieri

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Abstract
Background: Despite the broad diet range of many predatory ladybirds, the mechanisms involved in their adaptation to diet shifts are not completely understood. Here, we explored how a primarily coccidophagous ladybird Cryptolaemus montrouzieri adapts to feeding on aphids. Results: Based on the lower survival rate, longer developmental time, and lower adult body weight and reproduction rate of the predator, the aphid Megoura japonica proved being less suitable to support C. montrouzieri as compared with the citrus mealybug Planococcus citri. The results indicated up-regulation of genes related to ribosome and translation in fourth instars, which may be related to their suboptimal development. Also, several genes related to biochemical transport and metabolism, and detoxification were up-regulated as a result of adaptation to the changes in nutritional and non-nutritional (toxic) components of the prey. Conclusion: Our results indicated that C. montrouzieri succeeded in feeding on aphids by regulation of genes related to development, digestion and detoxification. Thus, we argue that these candidate genes are valuable for further studies of the functional evolution of ladybirds led by diet shifts.
Keywords
Cryptolaemus montrouzieri, Predacious ladybird, Coccid, Aphid, Diet shift, Life history, Transcriptome, CACTUS HOST SHIFTS, DROSOPHILA-MOJAVENSIS, RNA-SEQ, TRANSLATIONAL REGULATION, PHENOTYPIC PLASTICITY, PLANT, RHAGOLETIS, SPECIATION, EXPRESSION, REVEALS

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Chicago
Li, Hao-Sen, Chang Pan, Patrick De Clercq, Adam Ślipiński, and Hong Pang. 2016. “Variation in Life History Traits and Transcriptome Associated with Adaptation to Diet Shifts in the Ladybird Cryptolaemus Montrouzieri.” Bmc Genomics 17.
APA
Li, H.-S., Pan, C., De Clercq, P., Ślipiński, A., & Pang, H. (2016). Variation in life history traits and transcriptome associated with adaptation to diet shifts in the ladybird Cryptolaemus montrouzieri. BMC GENOMICS, 17.
Vancouver
1.
Li H-S, Pan C, De Clercq P, Ślipiński A, Pang H. Variation in life history traits and transcriptome associated with adaptation to diet shifts in the ladybird Cryptolaemus montrouzieri. BMC GENOMICS. 2016;17.
MLA
Li, Hao-Sen, Chang Pan, Patrick De Clercq, et al. “Variation in Life History Traits and Transcriptome Associated with Adaptation to Diet Shifts in the Ladybird Cryptolaemus Montrouzieri.” BMC GENOMICS 17 (2016): n. pag. Print.
@article{7238951,
  abstract     = {Background: Despite the broad diet range of many predatory ladybirds, the mechanisms involved in their adaptation to diet shifts are not completely understood. Here, we explored how a primarily coccidophagous ladybird Cryptolaemus montrouzieri adapts to feeding on aphids. 
Results: Based on the lower survival rate, longer developmental time, and lower adult body weight and reproduction rate of the predator, the aphid Megoura japonica proved being less suitable to support C. montrouzieri as compared with the citrus mealybug Planococcus citri. The results indicated up-regulation of genes related to ribosome and translation in fourth instars, which may be related to their suboptimal development. Also, several genes related to biochemical transport and metabolism, and detoxification were up-regulated as a result of adaptation to the changes in nutritional and non-nutritional (toxic) components of the prey. 
Conclusion: Our results indicated that C. montrouzieri succeeded in feeding on aphids by regulation of genes related to development, digestion and detoxification. Thus, we argue that these candidate genes are valuable for further studies of the functional evolution of ladybirds led by diet shifts.},
  articleno    = {281},
  author       = {Li, Hao-Sen and Pan, Chang and De Clercq, Patrick and \'{S}lipi\'{n}ski, Adam and Pang, Hong},
  issn         = {1471-2164},
  journal      = {BMC GENOMICS},
  keyword      = {Cryptolaemus montrouzieri,Predacious ladybird,Coccid,Aphid,Diet shift,Life history,Transcriptome,CACTUS HOST SHIFTS,DROSOPHILA-MOJAVENSIS,RNA-SEQ,TRANSLATIONAL REGULATION,PHENOTYPIC PLASTICITY,PLANT,RHAGOLETIS,SPECIATION,EXPRESSION,REVEALS},
  language     = {eng},
  pages        = {9},
  title        = {Variation in life history traits and transcriptome associated with adaptation to diet shifts in the ladybird Cryptolaemus montrouzieri},
  url          = {http://dx.doi.org/10.1186/s12864-016-2611-8},
  volume       = {17},
  year         = {2016},
}

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