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Molecular identification and expression pattern of three novel Aurora kinases in Macrobrachium rosenbergii (Decapoda, Caridea)

In: Crustaceana
Authors:
Wen-Ming Ma College of Advanced Agricultural Sciences, Zhejiang Wanli University, 8 South Qianhu Road, Ningbo, Zhejiang 315100, P.R. China

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https://orcid.org/0000-0001-9474-8033
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Jing-Yu Luo College of Advanced Agricultural Sciences, Zhejiang Wanli University, 8 South Qianhu Road, Ningbo, Zhejiang 315100, P.R. China

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Yu-Li Xu College of Advanced Agricultural Sciences, Zhejiang Wanli University, 8 South Qianhu Road, Ningbo, Zhejiang 315100, P.R. China

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Abstract

Aurora kinase is crucial in mitosis and meiosis. Three novel Aurora kinases were identified in Macrobrachium rosenbergii in the present study. There was a highly conserved serine/threonine domain within their C-terminal. Multiple sequence alignment of the serine/threonine domain in Mr-Aurora kinases revealed a high degree of similarity to other representative Aurora kinases. The phylogenetic analysis illustrated that Mr-Aurora A was clustered into a separate branch with the Aurora kinases of Armadillidium nasatum, and Mr-Aurora CA and Mr-Aurora CB were clustered together in a separate branch. Additionally, both Mr-Aurora A and Mr-Aurora CA genes were specifically expressed in the reproductive system. But, Mr-Aurora CB was expressed in a multi-tissue pattern. Furthermore, all Mr-Aurora kinases were expressed throughout embryonic development and showed various levels of expression in different periods. This study can possibly provide a novel highlight to the molecular mechanism of Aurora kinases’ involvement in cell division of reproduction and embryonic development of crustaceans.

Résumé

La kinase Aurora est cruciale pour les mitoses et méioses. Dans cette étude trois nouvelles kinases Aurora ont été identifiées chez Macrobrachium rosenbergii. Il existe au niveau de leur C-terminal un domaine sérine/thréonine hautement conservé. L’alignement des séquences multiples du domaine de la serine/thréonine chez les kinases de Mr-Aurora a montré un haut degré de similarité avec les autres kinases Aurora. L’analyse phylogénétique illustre que Mr-Aurora A est regroupée dans une branche distincte avec les kinases Aurora d’ Armadillidium nasatum, et Mr-Aurora CA et Mr-Aurora CB se regroupent dans une branche séparée. De plus, les gènes de Mr-Aurora A et Mr-Aurora CA ont été spécifiquement exprimés dans le système reproducteur ; alors que Mr-Aurora CB a été exprimé dans de nombreux tissus. En outre, toutes les kinases Mr-Aurora ont été exprimées au cours du développement embryonnaire et ont montré différents niveaux d’expression à différentes périodes. Cette étude apporte un nouvel éclairage sur les mécanismes moléculaires de l’implication des kinases Aurora dans la division cellulaire de la reproduction et du développement embryonnaire des crustacés.

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