Molecular characterization of Chinese sturgeon gonadotropins and cellular distribution in pituitaries of mature and immature individuals

Cao, Hong; Zhou, Li; Zhang, Yanzhen; Wei, Qiwei; Chen, Xihua; Gui, Jian‐Fang

doi:10.1016/j.mce.2009.01.015

Cited by 35 publications

(18 citation statements)

References 35 publications

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“…In this cascade, gonadotropin-releasing hormones (GnRHs) produced by hypothalamus are found to be the primary neuropeptides, and gonadotropic hormones (GtHs) synthesized and released by pituitary are found to lead ovaries or testicles to produce mature eggs or sperms, whereas dopamine (DA) produced by pituitary has been found to exhibit an inhibiting effect on the functions of GnRHs [62][63][64]. Multiple GtHs have been reported by Chinese scientists in groupers [65] and Chinese sturgeon (Acipenser sinensis) [66]. In common carp, two GnRH variants have been isolated [67].…”

Section: Reproduction Trait and Candidate Reproductionrelated Genesmentioning

confidence: 99%

Molecular basis and genetic improvement of economically important traits in aquaculture animals

2012

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Aquaculture has been believed to be a major Chinese contribution to the world. In recent 20 years, genome and other genetic technologies have promoted significant advances in basic studies on molecular basis and genetic improvement of aquaculture animals, and complete genomes of some main aquaculture animals have been sequenced or announced to be sequenced since the beginning of this century. Here, we review some significant breakthrough progress of aquaculture genetic improvement technologies including genome technologies, somatic cell nuclear transfer and stem cell technologies, outline the molecular basis of several economically important traits including reproduction, sex, growth, disease resistance, cold tolerance and hypoxia tolerance, and present a series of candidate trait-related genes. Finally, some application cases of genetic improvement are introduced in aquaculture animals, especially in China, and several development trends are highlighted in the near future.

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Section: Reproduction Trait and Candidate Reproductionrelated Genesmentioning

confidence: 99%

Molecular basis and genetic improvement of economically important traits in aquaculture animals

2012

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“…Therefore, the understanding of its growth and reproduction regulation should start from the early stages. Recently, we have initiated a systematic molecular study in Chinese sturgeon, and identified some important genes relative to growth and reproduction, such as three gonadotropin subunits common α, FSHβ and LHβ (Cao et al, 2009), GH/PRL family and thyroid stimulating hormone subunit β (TSHβ) (in preparation). In the present study, two distinct somatostatin cDNAs were cloned from the hypothalamus of Chinese sturgeon.…”

Section: Introductionmentioning

confidence: 99%

Molecular and expression characterization of two somatostatin genes in the Chinese sturgeon, Acipenser sinensis

Wei

Zhou

et al. 2009

Comparative Biochemistry and Physiology Part A: Molecular &

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“…Because there is no external sexual dimorphism in the some sturgeon, for example, the Russian sturgeon, the development of internal gonads is the only biomarker for sex identification. So far, there are four different internal examination methods for sex identification in sturgeons, including invasive surgery (14,17,27), endoscopy (37), ultrasound (62), and measurement of biochemistry and hormone levels in the blood (4,9,21,47,50). The sex of sturgeons can be confirmed via an endoscopic system with very high accuracy (95%) (29).…”

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confidence: 99%

Discovery and identification of candidate sex-related genes based on transcriptome sequencing of Russian sturgeon (Acipenser gueldenstaedtii) gonads

Chen

Xia²,

Shao

et al. 2016

Physiological Genomics

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Discovery and identification of candidate sex-related genes based on transcriptome sequencing of Russian sturgeon (Acipenser gueldenstaedtii) gonads. Physiol Genomics 48: 464 -476, 2016. First published May 6, 2016 doi:10.1152/physiolgenomics.00113.2015.-As the Russian sturgeon (Acipenser gueldenstaedtii) is an important food and is the main source of caviar, it is necessary to discover the genes associated with its sex differentiation. However, the complicated life and maturity cycles of the Russian sturgeon restrict the accurate identification of sex in early development. To generate a first look at specific sex-related genes, we sequenced the transcriptome of gonads in different development stages (1, 2, and 5 yr old stages) with next-generation RNA sequencing. We generated Ͼ60 million raw reads, and the filtered reads were assembled into 263,341 contigs, which produced 38,505 unigenes. Genes involved in signal transduction mechanisms were the most abundant, suggesting that development of sturgeon gonads is under control of signal transduction mechanisms. Differentially expressed gene analysis suggests that more genes for protein synthesis, cytochrome c oxidase subunits, and ribosomal proteins were expressed in female gonads than in male. Meanwhile, male gonads expressed more transposable element transposase, reverse transcriptase, and transposase-related genes than female. In total, 342, 782, and 7,845 genes were detected in intersex, male, and female transcriptomes, respectively. The female gonad expressed more genes than the male gonad, and more genes were involved in female gonadal development. Genes (sox9, foxl2) are differentially expressed in different sexes and may be important sex-related genes in Russian sturgeon. Sox9 genes are responsible for the development of male gonads and foxl2 for female gonads.

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Molecular characterization of Chinese sturgeon gonadotropins and cellular distribution in pituitaries of mature and immature individuals

Cited by 35 publications

References 35 publications

Molecular basis and genetic improvement of economically important traits in aquaculture animals

Molecular basis and genetic improvement of economically important traits in aquaculture animals

Molecular and expression characterization of two somatostatin genes in the Chinese sturgeon, Acipenser sinensis

Discovery and identification of candidate sex-related genes based on transcriptome sequencing of Russian sturgeon (Acipenser gueldenstaedtii) gonads

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