scholarly journals Embryonic development of the fire-eye-tetra Moenkhausia oligolepis (Characiformes: Characidae)

Zygote ◽  
2021 ◽  
pp. 1-5
Author(s):  
Raquel Santos dos Santos ◽  
Jeane Rodrigues Rodrigues ◽  
Jhennifer Gomes Cordeiro ◽  
Hadda Tercya ◽  
Marissol Leite ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Germ Cell ◽  
Cell Transplantation ◽  
Species Conservation ◽  
Biotechnological Applications ◽  
Model Species ◽  
Phylogenetic Classification ◽  
Laboratory Conditions ◽  
Adhesive Surface ◽  
Taxonomic Studies

Summary This study describes the embryonic development of Moenkhausia oligolepis in laboratory conditions. After fertilization, the embryos were collected every 10 min up to 2 h, then every 20 min up to 4 h, and afterwards every 30 min until hatching. The fertilized eggs of M. oligolepis measured approximately 0.85 ± 0.5 mm and had an adhesive surface. Embryonic development lasted 14 h at 25ºC through the zygote, cleavage, blastula, gastrula, neurula, and segmentation phases. Hatching occurred in embryos around the 30-somites stage. The present results contribute only the second description of embryonic development to a species from the Moenkhausia genus, being also the first for this species. Such data are of paramount importance considering the current conflicting state of this genus phylogenetic classification and may help taxonomic studies. Understanding the biology of a species that is easily managed in laboratory conditions and has an ornamental appeal may assist studies in its reproduction to both supply the aquarium market and help the species conservation in nature. Moreover, these data enable the use of M. oligolepis as a model species in biotechnological applications, such as the germ cell transplantation approach.

scholarly journals EMBRYONIC DEVELOPMENT OF THE FIRE-EYE-TETRA Moenkhausia oligolepis (CHARACIFORMES: CHARACIDAE)

2020 ◽  
Author(s):  
Raquel Santos dos Santos ◽  
Jeane Rodrigues Rodrigues ◽  
Jhennifer Gomes Cordeiro ◽  
Hadda Tercya ◽  
Marissol Leite ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Germ Cell ◽  
Cell Transplantation ◽  
Species Conservation ◽  
Biotechnological Applications ◽  
Model Species ◽  
Phylogenetic Classification ◽  
Germ Cell Transplantation ◽  
Adhesive Surface ◽  
Taxonomic Studies

AbstractThis study describes the embryonic development of Moenkhausia oligolepis in captive conditions. After fertilization, the embryos were collected every 10 min up to 2 h, every 20 min up to 4 h, and every 30 min until hatching. The fertilized eggs of M. oligolepis measured approximately 0.85 ± 0.5 mm and have an adhesive surface. The embryonic development lasted 14 hours at 25°C, with the Zygote, Cleavage, Blastula, Gastrula, Neurula and Segmentation phases. The hatching occurred in embryos around the 30-somites stage. Our results bring only the second description of embryonic development to a species of Moenkhausia genus, the first for the refereed species. Such data are of paramount importance considering the current conflicting state of this genus phylogenetic classification and may help taxonomic studies. Understand the biology of a species that is easily handling in captive conditions and has an ornamental appeal may assist studies in its reproduction in order to both, supply the aquarium market and help the species conservation in nature. Moreover, our data enable the M. oligolepis to be used as a model species in biotechnological applications, such germ cell transplantation approach.

scholarly journals Control over the morphology and segregation of Zebrafish germ cell granules during embryonic development

2008 ◽  
Vol 8 (1) ◽  
pp. 58 ◽  
Author(s):  
Markus J Strasser ◽  
Natalia C Mackenzie ◽  
Karin Dumstrei ◽  
La-Iad Nakkrasae ◽  
Jürg Stebler ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Germ Cell

scholarly journals Induced sterility in fish and its potential and challenges for aquaculture and germ cell transplantation technology: a review

Biologia ◽  
2016 ◽  
Vol 71 (8) ◽  
Author(s):  
Amin Golpour ◽  
Mohammad Abdul Momin Siddique ◽  
Diógenes Henrique Siqueira-Silva ◽  
Martin Pšenička
Keyword(s):  
Germ Cell ◽  
Cell Transplantation ◽  
Large Scale ◽  
Hormonal Treatment ◽  
Important Species ◽  
Genetic Ablation ◽  
Germ Cell Transplantation ◽  
Commercially Important ◽  
Alternative Approaches ◽  
Hormone Signalling

AbstractInterest in reproductively sterile fish in aquaculture has prompted research into their production. Several methods are available for inducing sterility and optimizing its application in the global fishery industry. Sterilization can potentially be accomplished through irradiation, surgery, or chemical and hormonal treatment. Alternative approaches include triploidization, hybridization, and generation of new lines via advanced biotechnological techniques. Triploids of many commercially important species have been studied extensively and have been produced on a large scale for many years. Novel approaches, including disruption of gonadotropin releasing hormone signalling and genetic ablation of germ cells, have been developed that are effective in producing infertile fish but have the disadvantage of not being 100% reliable or are impractical for large-scale aquaculture. We review currently used technologies and recent advances in induction of sterility in fish, especially those intended for use in germ cell transplantation. Knowledge of the implications of these approaches remains incomplete, imposing considerable limitations.

scholarly journals Restoration of Fertility by Germ Cell Transplantation Requires Effective Recipient Preparation1

2003 ◽  
Vol 69 (2) ◽  
pp. 412-420 ◽  
Author(s):  
Clayton J. Brinster ◽  
Buom-Yong Ryu ◽  
Mary R. Avarbock ◽  
Levent Karagenc ◽  
Ralph L. Brinster ◽  
...  
Keyword(s):  
Germ Cell ◽  
Cell Transplantation ◽  
Germ Cell Transplantation ◽  
Restoration Of Fertility

scholarly journals Male germ cell transplantation in livestock

2006 ◽  
Vol 18 (2) ◽  
pp. 13 ◽  
Author(s):  
J. R. Hill ◽  
I. Dobrinski
Keyword(s):  
Stem Cells ◽  
Germ Cell ◽  
Cell Transplantation ◽  
Large Scale ◽  
Developmental State ◽  
Male Germ Cell ◽  
Seminiferous Tubules ◽  
Cell Transfer ◽  
Donor Sperm ◽  
Germ Cell Transplantation

Male germ cell transplantation is a powerful approach to study the control of spermatogenesis with the ultimate goal to enhance or suppress male fertility. In livestock animals, applications can be expanded to provide an alternative method of transgenesis and an alternative means of artificial insemination (AI). The transplantation technique uses testis stem cells, harvested from the donor animal. These donor stem cells are injected into seminiferous tubules, migrate from the lumen to relocate to the basement membrane and, amazingly, they can retain the capability to produce donor sperm in their new host. Adaptation of the mouse technique for livestock is progressing, with gradual gains in efficiency. Germ cell transfer in goats has produced offspring, but not yet in cattle and pigs. In goats and pigs, the applications of germ cell transplantation are mainly in facilitating transgenic animal production. In cattle, successful male germ cell transfer could create an alternative to AI in areas where it is impractical. Large-scale culture of testis stem cells would enhance the use of elite bulls by providing a renewable source of stem cells for transfer. Although still in a developmental state, germ cell transplantation is an emerging technology with the potential to create new opportunities in livestock production.

Germ Cell Transplantation and Neospermatogenesis

2011 ◽  
pp. 315-330
Author(s):  
Queenie V. Neri ◽  
Zev Rosenwaks ◽  
Zev Rosenwaks ◽  
Gianpiero D. Palermo
Keyword(s):  
Germ Cell ◽  
Cell Transplantation ◽  
Germ Cell Transplantation
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