Methyltestosterone efficiently induces male development in the self‐fertilizing hermaphrodite fish, Kryptolebias marmoratus

@article{Kanamori2006MethyltestosteroneEI,
  title={Methyltestosterone efficiently induces male development in the self‐fertilizing hermaphrodite fish, Kryptolebias marmoratus},
  author={Akira Kanamori and Aki Yamamura and Satoshi Koshiba and Jae‐Seong Lee and Edward F. Orlando and H. Hori},
  journal={genesis},
  year={2006},
  volume={44}
}
A hermaphrodite fish, Kryptolebias marmoratus, is the only known vertebrate that reproduces by self‐fertilization. In nature, males have been rarely observed. Low‐temperature treatment during late embryonic stages is known to induce males but its efficacy is variable. Here we report that 17α‐methyltestosterone (MT) treatment of the embryos converted most of the fish to males. We examined a time course of this male induction with histological and marker gene expression analyses. Oogenesis… 
A Transient Hermaphroditic Stage in Early Male Gonadal Development in Little Yellow Croaker, Larimichthys polyactis
TLDR
This research is the first report on male-specific transient hermaphroditic stage in little yellow croaker during early gonadal development, and will advance the current understanding of fish reproductive biology.
Embryonic development of the self‐fertilizing mangrove killifish Kryptolebias marmoratus
TLDR
The data suggest that K. marmoratus embryos are easily used and manipulated, supporting the use of this hermaphroditic vertebrate as a strong comparative model system in embryology, evolution, genetics, environmental and medical biology.
Transient effects of methyltestosterone injection on different reproductive parameters of the hermaphrodite fish Kryptolebias marmoratus
TLDR
The results clearly show that a single injection of MT inhibits ovarian development rather than testicular development in the hermaphroditic gonad of K. marmoratus, and demonstrate that asingle injection ofMT interfered with hepatic VTG mRNA synthesis mediated by the suppression of hepatic ERα mRNA transcription.
Effects of Temperature on Gene Expression and Sex Determination in the Mangrove Rivulus, Kryptolebias marmoratus
TLDR
These results provide the first data documenting how temperature affects the expression of genes rel vant to sex determination during embryogenesis in rivulus.
Analysis of expressed sequence tags from the liver and ovary of the euryhaline hermaphroditic fish, Kryptolebias marmoratus.
  • J. RheeBo-Mi Kim Jae-Seong Lee
  • Biology, Environmental Science
    Comparative biochemistry and physiology. Part D, Genomics & proteomics
  • 2011
The Genome of the Self-Fertilizing Mangrove Rivulus Fish, Kryptolebias marmoratus: A Model for Studying Phenotypic Plasticity and Adaptations to Extreme Environments
TLDR
The genome provides an important addition to the linkage map and transcriptomic tools recently developed for this species that together provide critical resources for epigenetic, transcriptomic, and proteomic analyses and will serve as the foundation for addressing key questions in behavior, physiology, toxicology, and evolutionary biology.
Differential transcript expression of selected gene batteries in two clonal strains of the self-fertilizing fish, Kryptolebias marmoratus.
Establishing developmental genetics in a self-fertilizing fish (Krytolebias marmoratus).
TLDR
A pilot zygotic mutant screen utilizing the common chemical mutagen, N-ethyl-N-nitrosourea (ENU) is presented to establish genetics in this model species, Kryptolebias marmoratus, to complement future developmental genetic screens in vertebrates.
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Subtractive hybridization was used to identify differences in gene expression between medaka (Oryzias latipes) males and females during sex differentiation. Fifty female‐specific cDNA fragments were
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TLDR
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