Zygote

Research Article

Ultraviolet radiation and handling medium osmolarity affect chimaerism success in zebrafish

M. Francisco-Simãoa2a3, J. Cardona-Costaa1 c1, M. Pérez-Campsa2 and F. García-Ximéneza2

a1 Laboratory of Animal Reproduction and Biotechnology (LARB-UPV), Universidad Politécnica de Valencia, Camino de Vera 14,46071 Valencia, Spain.

a2 Laboratory of Animal Reproduction and Biotechnology (LARB-UPV), Universidad Politécnica de Valencia, Camino de Vera 14,46071 Valencia, Spain.

a3 Faculty of Agriculture Sciences – Agostinho Neto University, Angola.

Summary

The effects of a predefined ultraviolet radiation dose (0.529 mW/cm2 for 30s) together with two different micromanipulation medium osmolarities (30 mOsm/kg vs 300 mOsm/kg) were tested on embryo survival at different developmental stages and on the somatic (skin) and germ-line chimaerism rates. Somatic (13%, 6/47 adults) and germ-line chimaerism (50% pigmented F1 larvae) were detected only in the UV-treated recipient embryos micromanipulated in a 300 mOsm/kg medium. From the results obtained, we concluded that the conditions cited above were the most suitable to improve somatic and germ-line chimaerism rates in zebrafish.

(Received October 09 2009)

(Accepted January 21 2010)

(Online publication June 23 2010)

Correspondence:

c1 All correspondence to: J. Cardona-Costa. Laboratory of Animal Reproduction and Biotechnology (LARB-UPV), Universidad Politécnica de Valencia, Camino de Vera 14,46071 Valencia, Spain. Tel: +34 963879433. Fax: +34 963877439. e-mail: cardona_costa_j@hotmail.com

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