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Characterization of carotenoid biosynthetic pathway genes in the pea aphid (Acyrthosiphon pisum) revealed by heterologous complementation and RNA interference assays

(2022) INSECT SCIENCE. 29(3). p.645-656
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Abstract
Carotenoids are involved in many essential physiological functions and are produced from geranylgeranyl pyrophosphate through synthase, desaturase, and cyclase activities. In the pea aphid (Acyrthosiphon pisum), the duplication of carotenoid biosynthetic genes, including carotenoid synthases/cyclases (ApCscA-C) and desaturases (ApCdeA-D), through horizontal gene transfer from fungi has been detected, and ApCdeB has known dehydrogenation functions. However, whether other genes contribute to aphid carotenoid biosynthesis, and its specific regulatory pathway, remains unclear. In the current study, functional analyses of seven genes were performed using heterologous complementation and RNA interference assays. The bifunctional enzymes ApCscA-C were responsible for the synthase of phytoene, and ApCscC may also have a cyclase activity. ApCdeA, ApCdeC, and ApCdeD had diverse dehydrogenation functions. ApCdeA catalyzed the enzymatic conversion of phytoene to neurosporene (three-step product), ApCdeC catalyzed the enzymatic conversion of phytoene to zeta-carotene (two-step product), and ApCdeD catalyzed the enzymatic conversion of phytoene to lycopene (four-step product). Silencing of ApCscs reduced the expression levels of ApCdes, and silencing these carotenoid biosynthetic genes reduced the alpha-, beta-, and gamma-carotene levels, as well as the total carotenoid level. The results suggest that these genes were activated and led to carotenoid biosynthesis in the pea aphid.
Keywords
carotenoid biosynthesis, heterologous complementary, pea aphid, RNA interference, PHYTOENE DESATURASE, ACCUMULATION, EXPRESSION, INSECTS

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MLA
Ding, Bi‐Yue, et al. “Characterization of Carotenoid Biosynthetic Pathway Genes in the Pea Aphid (Acyrthosiphon Pisum) Revealed by Heterologous Complementation and RNA Interference Assays.” INSECT SCIENCE, vol. 29, no. 3, 2022, pp. 645–56, doi:10.1111/1744-7917.12958.
APA
Ding, B., Xie, X., Shang, F., Smagghe, G., Niu, J., & Wang, J. (2022). Characterization of carotenoid biosynthetic pathway genes in the pea aphid (Acyrthosiphon pisum) revealed by heterologous complementation and RNA interference assays. INSECT SCIENCE, 29(3), 645–656. https://doi.org/10.1111/1744-7917.12958
Chicago author-date
Ding, Bi‐Yue, Xiu‐Cheng Xie, Feng Shang, Guy Smagghe, Jin‐Zhi Niu, and Jin‐Jun Wang. 2022. “Characterization of Carotenoid Biosynthetic Pathway Genes in the Pea Aphid (Acyrthosiphon Pisum) Revealed by Heterologous Complementation and RNA Interference Assays.” INSECT SCIENCE 29 (3): 645–56. https://doi.org/10.1111/1744-7917.12958.
Chicago author-date (all authors)
Ding, Bi‐Yue, Xiu‐Cheng Xie, Feng Shang, Guy Smagghe, Jin‐Zhi Niu, and Jin‐Jun Wang. 2022. “Characterization of Carotenoid Biosynthetic Pathway Genes in the Pea Aphid (Acyrthosiphon Pisum) Revealed by Heterologous Complementation and RNA Interference Assays.” INSECT SCIENCE 29 (3): 645–656. doi:10.1111/1744-7917.12958.
Vancouver
1.
Ding B, Xie X, Shang F, Smagghe G, Niu J, Wang J. Characterization of carotenoid biosynthetic pathway genes in the pea aphid (Acyrthosiphon pisum) revealed by heterologous complementation and RNA interference assays. INSECT SCIENCE. 2022;29(3):645–56.
IEEE
[1]
B. Ding, X. Xie, F. Shang, G. Smagghe, J. Niu, and J. Wang, “Characterization of carotenoid biosynthetic pathway genes in the pea aphid (Acyrthosiphon pisum) revealed by heterologous complementation and RNA interference assays,” INSECT SCIENCE, vol. 29, no. 3, pp. 645–656, 2022.
@article{8741552,
  abstract     = {{Carotenoids are involved in many essential physiological functions and are produced from geranylgeranyl pyrophosphate through synthase, desaturase, and cyclase activities. In the pea aphid (Acyrthosiphon pisum), the duplication of carotenoid biosynthetic genes, including carotenoid synthases/cyclases (ApCscA-C) and desaturases (ApCdeA-D), through horizontal gene transfer from fungi has been detected, and ApCdeB has known dehydrogenation functions. However, whether other genes contribute to aphid carotenoid biosynthesis, and its specific regulatory pathway, remains unclear. In the current study, functional analyses of seven genes were performed using heterologous complementation and RNA interference assays. The bifunctional enzymes ApCscA-C were responsible for the synthase of phytoene, and ApCscC may also have a cyclase activity. ApCdeA, ApCdeC, and ApCdeD had diverse dehydrogenation functions. ApCdeA catalyzed the enzymatic conversion of phytoene to neurosporene (three-step product), ApCdeC catalyzed the enzymatic conversion of phytoene to zeta-carotene (two-step product), and ApCdeD catalyzed the enzymatic conversion of phytoene to lycopene (four-step product). Silencing of ApCscs reduced the expression levels of ApCdes, and silencing these carotenoid biosynthetic genes reduced the alpha-, beta-, and gamma-carotene levels, as well as the total carotenoid level. The results suggest that these genes were activated and led to carotenoid biosynthesis in the pea aphid.}},
  author       = {{Ding, Bi‐Yue and Xie, Xiu‐Cheng and Shang, Feng and Smagghe, Guy and Niu, Jin‐Zhi and Wang, Jin‐Jun}},
  issn         = {{1672-9609}},
  journal      = {{INSECT SCIENCE}},
  keywords     = {{carotenoid biosynthesis,heterologous complementary,pea aphid,RNA interference,PHYTOENE DESATURASE,ACCUMULATION,EXPRESSION,INSECTS}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{645--656}},
  title        = {{Characterization of carotenoid biosynthetic pathway genes in the pea aphid (Acyrthosiphon pisum) revealed by heterologous complementation and RNA interference assays}},
  url          = {{http://doi.org/10.1111/1744-7917.12958}},
  volume       = {{29}},
  year         = {{2022}},
}

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