Expression of SOX3 and SOX9 Genes in Gonads of Blue Gourami

Degani, Gad

doi:10.4236/abc.2014.45037

Cited by 11 publications

(6 citation statements)

References 30 publications

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“…The brain of Anabantoidei fish contains neurons secreting hormones that are involved in growth and reproduction control and the interactions between them, which is very complex and is summarized in Figure 2 . The environment, pheromones, sexual behavior, and hormones are involved in oogenesis and the interactions between the two axes of blue gourami, BPG and BPLB, as is presented in Figure 2 and supported by relatively many studies [ 9 , 10 , 11 , 12 , 13 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ].…”

Section: Environmental Internal and Sexual Behavior Factors Affementioning

confidence: 64%

“… The interactions between the two axes, BPG and BPLB, of female blue gourami control oogenesis based on the review and unpublished data [ 9 , 10 , 11 , 12 , 13 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ]. Gonadotropin-releasing hormone 1 and 3 (GnRH1 and 3), follicle-stimulating hormone (FSH), luteinizing hormone (LH), pituitary adenylate cyclase-activating polypeptide (PACAP) and its related peptide (PRP), growth hormone (GH), prolactin (PRL), 17β-estradiol (E2), testosterone (T), 17α,20β- dihydroxy-4-pregnen-3-one (17,20P), vitellogenin (VTG), insulin-like growth factor 1 (IGF1).…”

Section: Figurementioning

confidence: 99%

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Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Degani

2020

Biology

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Blue gourami belongs to the Labyrinithici fish and the Anabantiform order. It is characterized by a specific organ located above its gills for the respiration of atmospheric oxygen. This specific adaptation to low oxygen levels affects reproduction that is controlled by the brain, which integrates different effects on reproduction mainly through two axes—the gonadotropic brain pituitary gonad axis (BPG) and the hypothalamic-pituitary-somatotropic axis (HPS axis), including the interactions between them. This brain control reproduction of the Anabantoidei suborder summarizes information that has been published on the hormones involved in controlling the reproduction system of a model female blue gourami fish (Trichogaster trichopterus), including unpublished data. In the whole-brain transcriptome of blue gourami, 17 transcription genes change during vitellogenesis in the brain. The hormones involved in reproduction in blue gourami described in the present paper include: Kisspeptin 2 (Kiss 2) and its receptors 1 and 2 (KissR 1 and 2); gonadotropin-releasing hormone 1, 2 and 3 (GnRH1, 2 and 3); GnRH receptor; pituitary adenylate cyclase-activating polypeptide (PACAP) and its related peptide (PRP); somatolactin (SL); follicle-stimulating hormone (FSH); luteinizing hormone (LH); growth hormone (GH); prolactin (PRL), 17β-estradiol (E2); testosterone (T); vitellogenesis (VTL); and 17α,20β- dihydroxy-4-pregnen-3-one (17,20P). A proposed quality model is presented regarding the brain control oogenesis in blue gourami that has a Labyrinth organ about which relatively little information has been published. This paper summarizes the complex various factors involved in the interactions between external and internal elements affecting the brain of fish reproduction in the Anabantiform order. It is suggested to study in the future the involvement of receptors of hormones, pheromones, and genome changes in various organs belonging to the reproduction system during the reproduction cycles about which little is known.

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Section: Environmental Internal and Sexual Behavior Factors Affementioning

confidence: 64%

Section: Figurementioning

confidence: 99%

Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Degani

2020

Biology

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“…Most of the genes involved in oogenesis [5] [6] [8] and spermatogenesis [14] [15] code for sex hormones and endocrine receptors that control the differentiation. The genes involved in paracrine and autocrine secretion have been less studied [16] [17] than those involved hormone control of reproduction.…”

Section: Discussionmentioning

confidence: 99%

Sex-Based Variation of Gene Expression in the Gonads and Fins of Russian Sturgeon (<i>Acipenser gueldenstaedtii</i>)

Degani¹,

Hajouj²,

Hurvitz³

2021

OJAS

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Russian sturgeon (Acipenser gueldenstaedtii) is a primitive freshwater fish and a source of black caviar. The genes involved in sexual determination and differentiation are still unknown and there are no molecular markers for sex identification in this species. Studying the variation of the sex-based differences in genomic sequences and in gene expression in the sturgeon may lead to markers of sex in early stages of development and advances in aquaculture, as well as provide novel insights about the evolution of reproduction, sex determination, and sexual differentiation mechanisms in vertebrates. Previous studies by our and other groups have identified differentially expressed genes in the gonads of adult female and male sturgeon. The current study aimed to test whether these genes were also differentially expressed in non-gonadal tissue, namely fins. We measured by qRT-PCR the mRNA levels of 29 known and novel sex-related genes in the gonads and fins of males (4 years old) and females (7 years old; sexual maturation is earlier in males than in females). Six genes (ATP6, IGFRM, LIA1A, S1A, NPL1A, GAPDH and SOX9) showed higher expression in female fins. However, only ATP6 mRNA levels differed in fins of males and females of the same age (4 years old). These findings underscore the impracticality of sex identification based on gene expression in non-gonadal tissue and the need for genetic sex markers in the Russian sturgeon.

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“…Most of the genes encode the hormones that control oogenesis and are condensed on the endocrine's BPG-axis mechanism [6,7]. The genes involved in paracrine and autocrine secretion have been studied less [10,12,13].…”

Section: Discussionmentioning

confidence: 99%

The Involvement of Hormones in Fish: Basic and Applied Aspects of Russian Sturgeon (Acipenser Gueldenstaedtii)

2019

Journal of Marine Science Research and Oceanography

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Fish are a very large group, containing a huge variety of over 33,000 species.Scientific knowledge about the interaction between hormones of the somatic axis (SA) and the gonadotropic axis (GA), both of which function in the brain, and the pituitary gonad axis (BPG) that controls growth and reproduction, is vital for the domestication of fish in aquaculture.The Acipenserida family comprises 27 species, some of which have a very high economic value, among them Russian sturgeon (Acipenser gueldenstaedtii) that adapted to growth in aquaculture conditions. Many aspects aimed at improving the adaptation and production of Russian sturgeon (Acipenser gueldenstaedtii) have been studied for quite a long time. Models based on the results of our and others’ studies describing the interaction between GA and SA during oogenesis in Russian sturgeon have been suggested. The mRNA relative level of FSH during vitellogenesis (VTL) was higher in females than in males, affecting VTL secretion of vitellogenin (Vg); however, it was lower in the pre-vitellogenic stage than in VTL. No difference was found in mRNA levels of the luteinizing hormone (LH) in Russian sturgeon during the first four years of growth. During its first five years of growth, the level of GH mRNA was higher in females than in males, but due to the high standard deviation of the mean, the difference was not significant. IGF-I mRNA expression differed between the various tissues.

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Expression of SOX3 and SOX9 Genes in Gonads of Blue Gourami

Cited by 11 publications

References 30 publications

Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Sex-Based Variation of Gene Expression in the Gonads and Fins of Russian Sturgeon (<i>Acipenser gueldenstaedtii</i>)

The Involvement of Hormones in Fish: Basic and Applied Aspects of Russian Sturgeon (Acipenser Gueldenstaedtii)

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Expression of SOX3 and SOX9 Genes in Gonads of Blue Gourami

Cited by 11 publications

References 30 publications

Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Brain Control Reproduction by the Endocrine System of Female Blue Gourami (Trichogaster trichopterus)

Sex-Based Variation of Gene Expression in the Gonads and Fins of Russian Sturgeon (&lt;i&gt;Acipenser gueldenstaedtii&lt;/i&gt;)

The Involvement of Hormones in Fish: Basic and Applied Aspects of Russian Sturgeon (Acipenser Gueldenstaedtii)

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Sex-Based Variation of Gene Expression in the Gonads and Fins of Russian Sturgeon (<i>Acipenser gueldenstaedtii</i>)