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YY super male fish

ABSTRACT: YY super male fish

PROVIDER: PRJNA488131 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7765193_1.fastq.gz	Fastqsanger.gz
	SRR7765193_2.fastq.gz	Fastqsanger.gz
	SRR7764449_1.fastq.gz	Fastqsanger.gz
	SRR7764449_2.fastq.gz	Fastqsanger.gz

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Identification of sex-biased miRNA involved in sex differentiation and spermatogenesis in yellow catfish by comparative transcriptome analysis

Project description:In this study, three small RNA libraries constructed from gonad tissues of XX female, XY male and YY super-male yellow catfish were sequenced by Solexa high-throughput sequencing technology to investigate the expression pattern of sex-biased microRNA. The sequencing data generated a total of 384 conserved miRNAs and 113 potential novel miRNAs, among which 23, 30 and 14 miRNAs were specifically detected in XX ovary, XY testis, and YY testis, respectively. Interestingly, more abundant piRNAs were found in ovary compared to testis in yellow catfish, which phenomenon is also observed in other fish species but opposite in mammalians. We detected a number of microRNAs differentially expressed between ovary and testis, such as miR-21, miR-462, miR-430 and -200 family. When compared the transcriptome between XY and YY testis, we observed relative lower expression of miR-141 and miR-429 in YY testis. Histological analysis indicated that YY super-males have more spermatids and less spermatocytes in spermatogenic cyst than XY males under the same age and culturing conditions. The expression level of miR-141 and 429 coincides with the progression of spermatogenesis both in yellow catfish and human. At last, The expression pattern of nine arbitrarily selected miRNAs detected by quantitative RT-PCR was consistent with the Solexa sequencing results. Our study provides a comprehensive miRNA transcriptome analysis for gonad of yellow catfish with different sex genotypes, and identifies a number of sex-biased miRNAs that are potentially involved in sex differentiation and spermatogenesis.

2016-01-24 | GSE54610 | GEO

Long read CLR sequencing of high molecular weight DNA from a YY Poecilia reticulata male

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2005-11-03 | E-SMDB-2853 | biostudies-arrayexpress

Pseudomonas sp. YY-1

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Peptide YY: a Paneth cell antimicrobial peptide that maintains Candida gut commensalism.

Project description:The mammalian gut secretes a family of multifunctional peptides that affect appetite, intestinal secretions, and motility, while some regulate the microbiota. We report peptide YY (PYY1-36), but not endocrine PYY3-36, is an antimicrobial peptide (AMP) expressed by gut epithelial Paneth Cells (PC). PC-PYY has limited antibacterial activity, but shows selective activity against virulent hyphal, but not yeast forms, of Candida albicans. 5 PC-PYY is a cationic molecule that interacts with the anionic surfaces of fungal hyphae to cause membrane disruption and transcriptional reprogramming to maintain the yeast phenotype of the fungus. PC-PYY is packaged into secretory granules and is secreted into and retained by surface mucus, which optimizes PC-PYY activity. Hence, PC-PYY acts as a selective antifungal AMP that contributes to the maintenance of gut fungal commensalism.

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Proteomic analysis revealed gender-related differences in the skin mucus proteome of discus fish (Symphysodon haraldi) during the parental and non-parental care periods

Project description:The discus fish, Symphysodon spp., a South American cichlid, has a unique parental care behavior where fry bite on parental skin mucus after hatching. In this study, we used LC-MS/MS technique to compare the skin mucus proteome composition of male or female discus fish during parental and non-parental care periods. By multivariate statistical analysis, we found clear separations between different periods and between different sexes of mucus proteome. Compared with non-parental female fish, parental female fish had 283 up-regulated and 235 down-regulated expressed proteins. Compared with non-parental male fish, parental male fish had 169 up-regulated and 120 down-regulated expressed proteins. The differentially expressed proteins for male fish were enriched in sulfur relay system, mucin type O-glycan biosynthesis and antigen processing and presentation pathways, while those for female fish were enriched in sulfur relay system, steroid biosynthesis and complement and coagulation cascades pathways. During the parental care, both male and female discus showed an enhanced lipid metabolism, producing more phospholipids and cholesterol. The difference is that male discus had increased tricarboxylic acid cycle producing more energy during the parental care, while females produced more nucleotides especially guanylic acid. Our study could provide new insights into the understanding of the unique mucus supply behavior of discus fish based on proteomic change.

2024-08-15 | PXD054942 |

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