Dataset Information

Whole Genome Sequencing of the Blue Tilapia (Oreochromis aureus) Provides a Valuable Genetic Resource for Biomedical Research on Tilapias.

ABSTRACT: Blue tilapia (Oreochromis aureus) has been an economically important fish in Asian countries. It can grow and reproduce in both freshwater and brackish water conditions, whereas it is also considered as a significant invasive species around the world. This species has been widely used as the hybridization parent(s) for tilapia breeding with a major aim to produce novel strains. However, available genomic resources are still limited for this important tilapia species. Here, we for the first time sequenced and assembled a draft genome for a seawater cultured blue tilapia (0.92 Gb), with 97.8% completeness and a scaffold N50 of 1.1 Mb, which suggests a relatively high quality of this genome assembly. We also predicted 23,117 protein-coding genes in the blue tilapia genome. Comparisons of predicted antimicrobial peptides between the blue tilapia and its close relative Nile tilapia proved that these immunological genes are highly similar with a genome-wide scattering distribution. As a valuable genetic resource, our blue tilapia genome assembly will benefit for biomedical researches and practical molecular breeding for high resistance to various diseases, which have been a critical problem in the aquaculture of tilapias.

SUBMITTER: Bian C

PROVIDER: S-EPMC6669741 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Whole Genome Sequencing of the Blue Tilapia (<i>Oreochromis aureus</i>) Provides a Valuable Genetic Resource for Biomedical Research on Tilapias.

Bian Chao C Li Jia J Lin Xueqiang X Chen Xiyang X Yi Yunhai Y You Xinxin X Zhang Yiping Y Lv Yunyun Y Shi Qiong Q

Marine drugs 20190628 7

Blue tilapia (<i>Oreochromis aureus</i>) has been an economically important fish in Asian countries. It can grow and reproduce in both freshwater and brackish water conditions, whereas it is also considered as a significant invasive species around the world. This species has been widely used as the hybridization parent(s) for tilapia breeding with a major aim to produce novel strains. However, available genomic resources are still limited for this important tilapia species. Here, we for the firs ...[more]

PMID: 31261751

Similar Datasets

Project description:A dataset is presented of an experiment that was conducted to compare the proportions of males obtained from hormonal sex reversed pure strain of Oreochromis shiranus and from interspecific hybridization of O.karongae male x O. shiranus female. Part of the data in the dataset were published in a journal article https://doi.org/10.1016/j.aqrep.2020.100274. The data were generated from four SETs of treatments of an experiment that was conducted at the National Aquaculture Center, in Malawi. The first SET of treatment comprised hybrids from interspecific crossing of O.karongae male and O. shiranus female in a pond based breeding hapa 1. SETs 2 and 4 were for fry from hapa spawned pure cross of O.shiranus males and females in a pond based breeding hapa 2. SET 3 comprised fry from pure cross of O. shiranus males and females under controlled temperature (27°C) in an indoor re-circulatory hatchery (Tables 1 to 4). During the first part of the experiment, the fry was raised for 28 days in tanks at three replicates and was fed a fry formulated feed containing 38% crude protein, three times a day. However, for SETs 2 and 3, the feed contained 17?-methyl testosterone at 60mg/kg of feed. The second part of the experiment involved growth performance testing of fry in each SET. The growth experiment was conducted in rearing hapas that were inserted in a common pond for a period of 70 days. The body weight data were collected every 14 days (Tables 1 to 4). On the 70th day, the proportions of males and females in the four SETs was determined using Aceto-carmine staining method (Table 5). The pictures of the stained male and female gonads under compound microscope are presented in the published journal article at https://doi.org/10.1016/j.aqrep.2020.100274. Dataset presented in this paper is for body weights of fish from day 0 to day 70 and proportion of males and females in each SET on the 70th day of the experiment (Tables 1, 2, 3, 4 and 5). The data were analyzed using SPSS version 20.0. Chi-square goodness of fit test was used to investigate if the observed sex ratios significantly deviated from the expected sex ratios at 5% level of significance. The differences among fish body weights were determined using Analysis of Variance and significantly different means were separated using Duncan's multiple range test at the 5% test level of significance. These data are useful for various stakeholders that are interested in sexing juvenile tilapia and for scientists that conduct tilapia sex reversal experiments. This data can also guide hatchery managers during commercial production of all male tilapias which grow faster than those in the mixed sex tilapia culture.

Project description:Background/Introduction: The pathology specimen reception is fundamental to the services provided by Biomedical Science laboratories worldwide. To ensure patient safety and that samples are of adequate quality to send for analysis, prospective Biomedical Scientists should have a robust knowledge of the processes involved and the acceptance criteria of the pathology specimen reception. This knowledge has been highlighted by employers as a current gap in Biomedical Science graduates and therefore needs to be addressed within higher education settings. To do this, this study aimed to 1) design a practical session to simulate the key processes of the pathology specimen reception and 2) to understand Biomedical Science students' opinions on these activities and the development of transferable skills required for post-graduate employment. Methods: The practical session was designed based on industrial requirements and academic knowledge of student skill sets to ensure suitability. Qualitative information regarding participant demographics and career interests was acquired through open-answer or multiple-choice questions. Quantitative student feedback was acquired via questionnaires utilising a 5-point Likert scale (n = 77). Results: The scenario-based practical session provided students with a positive learning experience with 98.7% of participants enjoying the session, with 87.0% stating they learned a lot by completing the session. It was also identified that participants preferred this style of learning to that of conventional higher education teaching modalities with 97.4% stating they would prefer simulated employment focussed scenarios embedded into the curriculum more often. The majority of participants also thought this session was helpful for the development of their key transferrable skills including teamworking, communication, and confidence. When stratified based on demographic data, there was minimal difference between cohorts and in the majority of cases, those participants from non-traditional university entry backgrounds had a more positive experience and better transferable skill development following the completion of this style of learning experience. Conclusion: This study highlights simulation-based learning as a tool to develop core Biomedical Science knowledge, build student graduate capital, and ensure the preparedness of students for post-graduation employment.

Dataset Information

Whole Genome Sequencing of the Blue Tilapia (Oreochromis aureus) Provides a Valuable Genetic Resource for Biomedical Research on Tilapias.

Publications

Whole Genome Sequencing of the Blue Tilapia (<i>Oreochromis aureus</i>) Provides a Valuable Genetic Resource for Biomedical Research on Tilapias.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets