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Complete mitochondrial genome of Ulva prolifera, the dominant species of green macroalgal blooms in Yellow Sea, China.

ABSTRACT: Ulva prolifera (U. prolifera), a green macroalgae, is widely known as the dominant species of the world's largest macroalgal blooms in the Yellow Sea, China. In this study, we sequenced and annotated the complete mitochondrial genome of U. prolifera (GenBank accession number: KU161104). The genome consists of circular chromosomes of 61?962?bp and encodes a total of 26 protein-coding genes include nine ribosomal protein genes, five atp genes, three cox genes, eight nad genes and cob gene. Phylogenetic analysis showed U. prolifera clustered into Ulvo phyceae clade and had close genetic relationship with algae Ulva fasciata.

SUBMITTER: Zhou L

PROVIDER: S-EPMC7799800 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Complete mitochondrial genome of Ulva prolifera, the dominant species of green macroalgal blooms in Yellow Sea, China.

Zhou Lingjie L Wang Lingke L Zhang Jianheng J Cai Chuner C He Peimin P

Mitochondrial DNA. Part B, Resources 20160201 1

Ulva prolifera (U. prolifera), a green macroalgae, is widely known as the dominant species of the world's largest macroalgal blooms in the Yellow Sea, China. In this study, we sequenced and annotated the complete mitochondrial genome of U. prolifera (GenBank accession number: KU161104). The genome consists of circular chromosomes of 61 962 bp and encodes a total of 26 protein-coding genes include nine ribosomal protein genes, five atp genes, three cox genes, eight ...[more]

PMID: 33473415

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Project description:BACKGROUND:Carotenoids are widely distributed in plants and algae, and their biosynthesis has attracted widespread interest. Carotenoid-related research has mostly focused on model species, and there is a lack of data on the carotenoid biosynthetic pathway in U. prolifera that is the main species leading to green tide, a harmful plague of floating green algae. RESULTS:The carotenoid content of U. prolifera samples, that is the main species leading to green tide, a harmful plague of floating green algae at different temperatures revealed that its terpenoid was highest in the samples subjected to high temperature at 28?°C (H), followed by the samples subjected to low temperature at 12?°C (L). Its terpenoid was lowest in the samples subjected to medium temperature at 20?°C (M). We conducted transcriptome sequencing (148.5 million raw reads and 49,676 unigenes in total) of samples that were subjected to different temperatures to study the carotenoid biosynthesis of U. prolifera. There were 1125-3164 significant differentially expressed genes between L, M and H incubation temperatures, of which 11-672 genes were upregulated and 453-3102 genes were downregulated. A total of 3164 genes were significantly differentially expressed between H and M, of which 62 genes were upregulated and 3102 genes were downregulated. A total of 2669 significant differentially expressed genes were observed between L and H, of which 11 genes were upregulated and 2658 genes were downregulated. A total of 13 genes were identified to be involved in carotenoid biosynthesis in U. prolifera, and the expression levels of the majority were highest at H and lowest at M of incubation temperature. Both the carotenoid concentrations and the expression of the analysed genes were lowest in the normal temperature group, while low temperature and high temperature seemed to activate the biosynthesis of carotenoids in U. prolifera. CONCLUSIONS:In this study, transcriptome sequencing provided critical information for understanding the accumulation of carotenoids and will serve as an important reference for the study of other metabolic pathways in U. prolifera.

Dataset Information

Complete mitochondrial genome of Ulva prolifera, the dominant species of green macroalgal blooms in Yellow Sea, China.

Publications

Complete mitochondrial genome of <i>Ulva prolifera,</i> the dominant species of green macroalgal blooms in Yellow Sea, China.

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