The Siamese fighting fish (Betta splendens) is one of the popular aquarium fish. Serious attentions have been paid to the biodiversity of the fish. The mitochondrial genome of the Siamese fighting fish is reported to be 17 099 bp and includes 37 genes. The gene organization is similar to other fish mitogenomes. The control region is AT-rich and includes three tandem repeats. Phylogenetic analysis reveals that the fish is close to fish in the Macropodus genus. This mitogenome will assist in studying the mitochondrial variations and population structure in this fish and examine the evolutionary relationship among fish in the Osphronemidae family.
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| http://dx.doi.org/10.3109/19401736.2015.1101573 | DOI Listing |
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Life beyond a jar: Effects of tank size and furnishings on the behaviour and welfare of Siamese fighting fish ().
Anim Welf
December 2024
Macquarie University, School of Natural Sciences, Australia.
Globally, Siamese fighting fish () continue to be sold and kept in small, barren jars or tanks, with little concern for their welfare. This study aimed to examine the impact of housing size and furnishings (i.e.
View Article and Find Full Text PDFUnveiling Insights into the Whole Genome Sequencing of spp. Isolated from Siamese Fighting Fish ().
Animals (Basel)
October 2024
Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand.
Article Synopsis
- - This study focuses on the genomic analysis of six isolates of rapidly growing non-tuberculous mycobacteria from Siamese fighting fish, which were previously characterized through other methods like antibiotic susceptibility and virulence testing.
- - Initial identification using 16S rRNA sequencing suggested they belonged to five species, but further whole genome sequencing and genomic comparisons led to reclassification, revealing a potential new species for one isolate.
- - The study highlights the presence of common virulence genes in all isolates and notes the horizontal gene transfer of specific traits from environmental bacteria, emphasizing the importance of whole genome sequencing for accurate mycobacterial classification.
Gross, histologic, and ultrastructural features of iridophoromas in Siamese fighting fish ().
Vet Pathol
October 2024
Universidade Federal da Paraíba, Areia, Brazil.
Article Synopsis
- Chromatophoromas are neoplasms in fish, reptiles, and amphibians, with iridophoromas specifically affecting light-reflecting cells in Siamese fighting fish.
- In a study of 71 cases, 63% of the tumors were malignant, often invading nearby muscle or metastasizing, while the rest were confined to the skin and couldn't be firmly classified as benign or malignant.
- There was a notable occurrence of iridophoromas among young male fish, especially those with royal blue and fancy copper colors, suggesting a possible genetic link to the development of these tumors.
Expansion and Functional Diversification of Long-Wavelength-Sensitive Opsin in Anabantoid Fishes.
J Mol Evol
August 2024
Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Konstanz, Germany.
Article Synopsis
- - Gene duplication is a key mechanism for creating genetic diversity, influencing how species adapt and evolve new traits, specifically in visual opsin genes, which have undergone dynamic changes through multiple duplication events.
- - This study focuses on the Betta genus, particularly the five lws opsin genes, utilizing whole-genome sequences from nine anabantoid species to trace the evolutionary history and functional diversification of these genes.
- - Findings indicate at least two independent duplications of the lws gene in Betta, with significant amino acid changes leading to different light absorption characteristics, and that gene expression patterns shift throughout development, suggesting a coordinated evolution of visual function in these fish.
Effects of clove oil concentrations on blood chemistry and stress-related gene expression in Siamese fighting fish () during transportation.
Front Vet Sci
May 2024
Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand.
Siamese fishing fish () or betta are usually subjected to a special method of transportation for global trade, where they are individually conveyed in plastic bags containing just enough water to cover their bodies. This study aimed to investigate the effects of transportation on their stress response by measuring hematological values, stress hormone levels, glucose levels, and stress-related gene expression. Betta fish (average body weight 1.
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