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Microarray analysis of the Asian seabass (Lates calcarifer) brains

ABSTRACT: In this study, we attempt to characterize the transcriptomic profile of the Asian seabass brains collected from the male and female sexes. The objective is to identify genes that show sexually dimorphic expression in the brain of this species. For this experiment, Asian seabass were collected from the Marine Aquaculture Center of the Agri-Food & Veterinary Authority of Singapore. There were no treatments carried out in this experiment. Four brains from adult male seabass (5 years old) with M3-type testis and four brains from adult female seabass (5 years old) with F3-type ovaries were used in this experiment. (Gonads were examined by histology and classified according to sexual maturation status as described by Guiguen and colleagues (Guiguen et al. Environmental Biology of Fishes, 1994)). Total 8 samples. Male Brain : 4 Female Brain : 4

ORGANISM(S): Lates calcarifer

SUBMITTER: Junhui Jiang

PROVIDER: E-GEOD-53901 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Microarray analysis of the Asian seabass (Lates calcarifer) brains

Project description:In this study, we attempt to characterize the transcriptomic profile of the Asian seabass brains collected from the male and female sexes. The objective is to identify genes that show sexually dimorphic expression in the brain of this species. For this experiment, Asian seabass were collected from the Marine Aquaculture Center of the Agri-Food & Veterinary Authority of Singapore. There were no treatments carried out in this experiment. Four brains from adult male seabass (5 years old) with M3-type testis and four brains from adult female seabass (5 years old) with F3-type ovaries were used in this experiment. (Gonads were examined by histology and classified according to sexual maturation status as described by Guiguen and colleagues (Guiguen et al. Environmental Biology of Fishes, 1994)).

2015-01-08 | GSE53901 | GEO

Microarray analysis of the Asian seabass (Lates calcarifer) gonads

Project description:In this study, we attempt to characterize the transcriptomic profile of the Asian seabass gonads at various developmental stages. The protandric Asian seabass or barramundi (Lates calcarifer) typically matures as a male at approximately 2M-bM-^@M-^S4 years of age and then changes sex to a female in later years. For this experiment, Asian seabass of several ages were collected from the Marine Aquaculture Center of the Agri-Food & Veterinary Authority of Singapore and from farms around Singapore. There were no treatments carried out in this experiment. The gonads were examined by histology and classified according to sexual maturation status as described by Guiguen and colleagues (Guiguen et al. Environmental Biology of Fishes, 1994). Altogether, we analyzed 22 gonadal samples that could be classified into six different types of gonads. Total 22 samples: Adult Ovaries (F3-stage; 5 years old fish) : 4 Adult Testes (M3-stage; 5 years old fish) : 4 Early Testes (M3-stage; 8-9 months old fish) : 3 Early Transforming Gonads (>2 years old fish) : 3 Late Transforming Gonads (>2 years old fish) : 4 Undifferentiated Gonads (4.5 months old fish) : 4

2015-01-08 | E-GEOD-53898 | biostudies-arrayexpress

Microarray analysis of the Asian seabass (Lates calcarifer) gonads

Project description:In this study, we attempt to characterize the transcriptomic profile of the Asian seabass gonads at various developmental stages. The protandric Asian seabass or barramundi (Lates calcarifer) typically matures as a male at approximately 2–4 years of age and then changes sex to a female in later years. For this experiment, Asian seabass of several ages were collected from the Marine Aquaculture Center of the Agri-Food & Veterinary Authority of Singapore and from farms around Singapore. There were no treatments carried out in this experiment. The gonads were examined by histology and classified according to sexual maturation status as described by Guiguen and colleagues (Guiguen et al. Environmental Biology of Fishes, 1994). Altogether, we analyzed 22 gonadal samples that could be classified into six different types of gonads.

2015-01-08 | GSE53898 | GEO

Nutrigenomics and nutritional analysis of juvenile Asian seabass (Lates Calcarifer) fed five different commercial feeds

Project description:In this study, the relative effect of consuming five different commercial feeds (Feed B-F) and and frozen fish (control; Feed A) for two months on our selected juvenile Asian seabass (77.3g Â± 22.4g) were investigated. The growth performance, the biochemical analysis of their flesh, the histology of their midgut and the transcriptome of their midgut and liver were compared to each other and controls. Our customised agilent microarray platform (GPL17855), were used to investigate the liver transcriptomic expression of the different Groups fed with different Feeds. No differential expression were detected between commerical Feeds (B, C, E and F). A total of 397 differentially expressed transcripts (Foldchange cutoff: -1.5â¤ or â¥1.5, Pvalue with FDR (<0.05) were detected between Feed D and control Feed A. Total: 24 samples (4 biological samples per Group; 6 Different Groups in total). Groups (A-F) were fed with Feeds (A-F) respectively for 61 days.

2015-12-31 | E-GEOD-55152 | biostudies-arrayexpress

Microarray analysis of up-regulated genes accompanying filial imprinting in domestic chicks (Gallus gallus domesticus)

Project description:Newly-hatched domestic chick serves as an important model for studies of neural and behavioral plasticity, particularly with respect to learning and memory such as filial imprinting. Imprinting is assumed to be a unique case of recognition learning with some characteristic features, such as sensitive period and irreversibility. However, the molecules involved in the memory process are yet to be fully identified. To address this issue, we attempted to identify the genes differentially expressed at an earlier phase of filial imprinting than described in our previous report (Brain Res. Bull.76, 275-281 (2008)). One-day-old chicks were trained for imprinting for 1 h and whole brains were collected and used for cDNA microarray analysis and quantitative RT-PCR. We identified 18 genes upregulated accompanying filial imprinting. These results suggested that the increase of these 18 genes associated with filial imprinting might play an important role in the acquisition of memory in the filial imprinting. Total RNA was extracted from whole brains of trained chicks (n=16) and control dark-reared chicks (n=16). Using these total RNAs, we performed RT-PCR to distinguish male chicks from females. Then total RNAs were separated and mixed in four groups (1, male trained (n=8); 2, female trained (n=8); 3, male dark-reared (n=8); and 4, female dark-reared chicks (n=8)), and we performed cDNA microarray expression analysis to identify the upregulated genes following imprinting (1 versus 3 and 2 versus 4).

2012-08-20 | E-GEOD-31055 | biostudies-arrayexpress

Identification of Hr38 as a neural activity-induced gene

Project description:Silkworms show a reproductive behavior induced by sex pheromone. To elucidate the neral mechanism of sex pheromone induced sexual behavior in the silkworm, we attempted to use the neural activity-induced gene as a neural activity marker. Since no neural activity-induced gene was identified in the silkworm, we conducted screening of neural activity-induced gene using the male silkworm brain. By the screening, we identified Bhr38 as a novel neural activity-induced gene, and succeded to comprehensively map the active neruons in the silkworm brain in response to the sex pheromone exposure. Further, we found that Dhr38, the Drosophila homologue of Bhr38, also expressed in a neural activity dependent manner. These results strongly suggest that Hr38 is a highly conserved neural activity-induced gene. The male silkworms were exposed to the female odor for 30 min (group P). Non-treated male silkworms were used as the control group group C. Ten brains were collected for each sample and stored at -80Â°C until use. Total RNA was isolated by the TRIzol reagent and subjected to microarray experiments using the custam made (8x16k) Oligo Microarray (Agilent Technologies, Inc.).

2014-01-01 | E-GEOD-39306 | biostudies-arrayexpress

Lates calcarifer

Project description:Microarray analysis of the Asian seabass (Lates calcarifer) brains

| PRJNA233665 | ENA

Lates calcarifer

Project description:Asian seabass (Lates calcarifer) Brain RNA-seq

| PRJDB11794 | ENA

Lates calcarifer

Project description:Asian seabass (Lates calcarifer) brain RNA-seq

| PRJDB11816 | ENA

Design of a gene signature to assess the proinflammatory and the profibrotic polarization of murine fibroblasts

Project description:We provide an original multi-stage approach identifying a gene signature to assess the fibroblast polarization. Prototypic polarizations (inflammatory/fibrotic) were induced by seeded mouse embryonic fibroblasts (MEFs) with TNFα or TGFß1, respectively. The transcriptomic and proteomic profiles were obtained by RNA microarray and LC/MS-MS. Gene Ontology and pathways analysis were performed among the differentially expressed genes (DEGs) and proteins (DEPs). Balb/c mice underwent daily intradermal injections of HOCl (or PBS) as an experimental murine model of inflammation-mediated fibrosis in a time-dependent manner. As results, 1,456 and 2,215 DEGs, and 289 and 233 DEPs were respectively found in MEFs in response to TNFα or TGFß1, respectively. Among the most significant pathways, we combined 26 representative genes to encompass the proinflammatory and profibrotic polarizations of fibroblasts. Based on principal component analysis, this signature deciphered baseline state, proinflammatory polarization, and profibrotic polarization as accurately as did RNA microarray and LC/MS-MS. Then, we assessed the gene signature on dermal fibroblasts isolated from the experimental murine model. We observed a proinflammatory polarization at day 7, and a mixture of a proinflammatory and profibrotic polarizations at day 42 in line with histological findings. Our approach provides a small-size and convenient gene signature to assess murine fibroblast polarization.

2022-07-12 | PXD034078 | Pride

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