Evidence map›Paper›PMID 21779806›Full record

ArticleMolecular biology reports2012

Molecular characterization of growth differentiation factor 9 and its spatio-temporal expression pattern in gibel carp (Carassius auratus gibelio).

Zhiwei Liu, Aqin Chen, Zhigang Yang, Hua Wei, Xiangjun Leng

Abstract read
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In one paragraph

Article in Molecular biology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Zhiwei LiuKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources, College of Fisheries and Life Science, Shanghai Ocean University, Huchenghuan Road 999, Lingang New District, Shanghai, 201306, People's Republic of China.
Aqin Chen
Zhigang Yang
Hua Wei
Xiangjun Leng
Shanghai Ocean University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Growth differentiation factor 9 (GDF9) is a member of the transforming growth factor β (TGF-β) superfamily with a key role in regulating follicle development. In this study, the GDF9 full-length genomic DNA and cDNA were isolated and characterized from the gibel carp ovary using rapid-amplification of cDNA ends (RACE) and LD-PCR. The full-length genomic DNA and cDNA sequences of GDF9 are 3979 and 2044 bp which code 428 amino acid residues with a specific RKKR protease cleavage site of TGF-β superfamily. Sequence analysis showed that gibel carp was similar to zebrafish and other fish species. Spatio-temporal expression analysis using real-time quantitative PCR revealed that GDF9 mRNA was largely expressed in ovary and testis. GDF9 is mainly present at stage I follicles indicating its important role in early follicles development. The same result was obtained in immunohistochemistry localization of GDF9 protein. Within the follicle, the follicle layer cells were barely expressed whereas GDF9 mRNA was mostly expressed in the oocytes. Supplemented with human chorionic gonadotropin (hCG) in isolated follicles, the expression of GDF9 mRNA was increased firstly and then decreased. The results of this study indicated that GDF9 gene played a role in fish during development of follicles, especially in the early stage follicles.

Indexed as

Gene Expression RegulationAnimalsCarpsChorionic GonadotropinCloning, MolecularDNA, ComplementaryFemaleGrowth Differentiation Factor 9HumansImmunohistochemistryOvaryProtein TransportReal-Time Polymerase Chain ReactionRNA, MessengerTime FactorsChorionic GonadotropinDNA, ComplementaryGrowth Differentiation Factor 9RNA, Messenger

Identifiers

PMID21779806
OpenAlexW2035331693

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.