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Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum

The Manila clam (Ruditapes philippinarum) is an economically important molluscan bivalve with variation in pigmentation frequently observed in the shell. In nature, tyrosinase is widely distributed in invertebrates and vertebrates, and plays a crucial role in a variety of physiological activities. I...

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Autores principales: Jiang, Kunyin, Jiang, Liwen, Nie, Hongtao, Huo, Zhongming, Yan, Xiwu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7032058/
https://www.ncbi.nlm.nih.gov/pubmed/32110498
http://dx.doi.org/10.7717/peerj.8641
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author Jiang, Kunyin
Jiang, Liwen
Nie, Hongtao
Huo, Zhongming
Yan, Xiwu
author_facet Jiang, Kunyin
Jiang, Liwen
Nie, Hongtao
Huo, Zhongming
Yan, Xiwu
author_sort Jiang, Kunyin
collection PubMed
description The Manila clam (Ruditapes philippinarum) is an economically important molluscan bivalve with variation in pigmentation frequently observed in the shell. In nature, tyrosinase is widely distributed in invertebrates and vertebrates, and plays a crucial role in a variety of physiological activities. In this study, a tyrosinase gene (tyr 9) was cloned and the expression level of tyr genes (tyr 6, tyr 9, tyr 10, and tyr 11) were investigated in different shell colors. Quantitative real-time PCR showed that tyr genes were significantly expressed in the mantle, a shell formation and pigmentation-related tissue. Moreover, the expression pattern of the tyr genes in the mantle of different shell-color strains was different, suggesting that tyrosinases might be involved in different shell-color formation. In addition, the expression profile of tyr 6, tyr 9, tyr 10, and tyr 11 genes were detected at different early developmental stages and the expression level varied with embryonic and larval growth. RNA interference (RNAi) results showed that the expression level of tyr 9 in the RNAi group was significantly down-regulated compared to control and negative control groups, indicating that Rptyr 9 might participate in shell-color formation. Our results indicated that tyr genes were likely to play vital roles in the formation of shell and shell-color in R. philippinarum.
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spelling pubmed-70320582020-02-27 Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum Jiang, Kunyin Jiang, Liwen Nie, Hongtao Huo, Zhongming Yan, Xiwu PeerJ Aquaculture, Fisheries and Fish Science The Manila clam (Ruditapes philippinarum) is an economically important molluscan bivalve with variation in pigmentation frequently observed in the shell. In nature, tyrosinase is widely distributed in invertebrates and vertebrates, and plays a crucial role in a variety of physiological activities. In this study, a tyrosinase gene (tyr 9) was cloned and the expression level of tyr genes (tyr 6, tyr 9, tyr 10, and tyr 11) were investigated in different shell colors. Quantitative real-time PCR showed that tyr genes were significantly expressed in the mantle, a shell formation and pigmentation-related tissue. Moreover, the expression pattern of the tyr genes in the mantle of different shell-color strains was different, suggesting that tyrosinases might be involved in different shell-color formation. In addition, the expression profile of tyr 6, tyr 9, tyr 10, and tyr 11 genes were detected at different early developmental stages and the expression level varied with embryonic and larval growth. RNA interference (RNAi) results showed that the expression level of tyr 9 in the RNAi group was significantly down-regulated compared to control and negative control groups, indicating that Rptyr 9 might participate in shell-color formation. Our results indicated that tyr genes were likely to play vital roles in the formation of shell and shell-color in R. philippinarum. PeerJ Inc. 2020-02-17 /pmc/articles/PMC7032058/ /pubmed/32110498 http://dx.doi.org/10.7717/peerj.8641 Text en © 2020 Jiang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Aquaculture, Fisheries and Fish Science
Jiang, Kunyin
Jiang, Liwen
Nie, Hongtao
Huo, Zhongming
Yan, Xiwu
Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title_full Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title_fullStr Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title_full_unstemmed Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title_short Molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of Manila clam Ruditapes philippinarum
title_sort molecular cloning and expression analysis of tyrosinases (tyr) in four shell-color strains of manila clam ruditapes philippinarum
topic Aquaculture, Fisheries and Fish Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7032058/
https://www.ncbi.nlm.nih.gov/pubmed/32110498
http://dx.doi.org/10.7717/peerj.8641
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