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Review

Markers of Genetic Variation in Blue Gourami (Trichogaster trichopterus) as a Model for Labyrinth Fish

1
MIGAL–Galilee Research Institute, P.O.B. 831, Kiryat Shmona 1101602, Israel
2
Faculty of Sciences, Tel-Hai Academic College, Upper Galilee 1220800, Israel
3
Department of Software and Information Systems Engineering, Ben Gurion University of the Negev, P.O.B. 653, Beer-Sheva 8410501, Israel
*
Author to whom correspondence should be addressed.
Academic Editor: M. Gonzalo Claros
Biology 2021, 10(3), 228; https://doi.org/10.3390/biology10030228
Received: 9 February 2021 / Revised: 5 March 2021 / Accepted: 12 March 2021 / Published: 16 March 2021
(This article belongs to the Section Zoology)
This review is a summary of recent studies of genes, many of them involved in growth and reproduction, which can be used for distinguishing between species of the Anabantoidei suborder of fish, focusing on the Blue Gourami as a model species. This is important in both basic science and aquaculture applications.
Markers of genetic variation between species are important for both applied and basic research. Here, various genes of the blue gourami (Trichogaster trichopterus, suborder Anabantoidei, a model labyrinth fish), many of them involved in growth and reproduction, are reviewed as markers of genetic variation. The genes encoding the following hormones are described: kisspeptins 1 and 2, gonadotropin-releasing hormones 1, 2, and 3, growth hormone, somatolactin, prolactin, follicle- stimulating hormone and luteinizing hormone, as well as mitochondrial genes encoding cytochrome b and 12S rRNA. Genetic markers in blue gourami, representing the suborder Anabantoidei, differ from those in other bony fishes. The sequence of the mitochondrial cytochrome c oxidase subunit 1 (COI) gene of blue gourami is often used to study the Anabantoidei suborder. Among the genes involved in controlling growth and reproduction, the most suitable genetic markers for distinguishing between species of the Anabantoidei have functions in the hypothalamic–pituitary–somatotropic axis: pituitary adenylate cyclase-activating polypeptide and growth hormone, and the 12S rRNA gene. View Full-Text
Keywords: mitochondrial genes; cytochrome b; 12S rRNA gene; Anabantoidei; growth hormone; reproduction mitochondrial genes; cytochrome b; 12S rRNA gene; Anabantoidei; growth hormone; reproduction
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MDPI and ACS Style

Degani, G.; Veksler-Lublinsky, I.; Meerson, A. Markers of Genetic Variation in Blue Gourami (Trichogaster trichopterus) as a Model for Labyrinth Fish. Biology 2021, 10, 228. https://doi.org/10.3390/biology10030228

AMA Style

Degani G, Veksler-Lublinsky I, Meerson A. Markers of Genetic Variation in Blue Gourami (Trichogaster trichopterus) as a Model for Labyrinth Fish. Biology. 2021; 10(3):228. https://doi.org/10.3390/biology10030228

Chicago/Turabian Style

Degani, Gad, Isana Veksler-Lublinsky, and Ari Meerson. 2021. "Markers of Genetic Variation in Blue Gourami (Trichogaster trichopterus) as a Model for Labyrinth Fish" Biology 10, no. 3: 228. https://doi.org/10.3390/biology10030228

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