Developmental stages, incubation temperature, and in vivo traceability of primordial germ cell in an important aquaculture species Piaractus mesopotamicus

Autor(es)

Zacheo Coelho, Geovanna Carla ^{[1, 2]} ; Arashiro, Dilberto Ribeiro ^{[1, 2]} ; Disselli, Tamiris ^[2] ; Pereira-Santos, Matheus ^[3] ; Mira-Lopez, Tatiana Maria ^[4] ; Monzani, Paulo Sergio ^[2] ; Senhorini, Jose Augusto ^{[1, 2]} ; Fujimoto, Takafumi ^[5] ; Yasui, George Shigueki ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Inst Biosci, Botucatu, SP - Brazil

^[2] Chico Mendes Inst Biodivers Conservat, Natl Ctr Res & Conservat Continental Fish, Lab Fish Biotechnol, Pirassununga, SP - Brazil

^[3] Univ Fed Rural Rio De Janeiro, Inst Zootecn, Rio De Janeiro - Brazil

^[4] Univ Los Llanos, Inst Acuicultura Los Llanos, Villavicencio, Colombia - Brazil

^[5] Hokkaido Univ, Fac Fisheries Sci, Hakodate, Hokkaido - Japan

• Tipo de documento: Artigo Científico
• Fonte: Aquaculture; v. 535, MAR 30 2021.
• Citações Web of Science: 0

Resumo

This study aims to describe the early development of Piaractus mesopotamicus in detail at 22 degrees C, 26 degrees C, and 30 degrees C and describe primordial germ cell migration in vivo by using artificial GFP-nos1 3'UTR mRNA for future application in surrogate technology. The highest hatching rate was observed at 26 degrees C with 52.9 +/- 18.9%, which was considered the best incubation temperature. At 22 degrees C, the embryos survived only until the blastula stage. The first visualization of PGCs occurred in the segmentation period when the embryos presented between 6 and 16 somites. The number of GFP-positive cells varied from 7 to 18 per embryo (mean 11.2; n = 15). After hatching, the GFP-positive cells ranged from 7 to 22 per embryo (mean 14.6; n = 15). The PGCs were traced until the 9th day after hatching. The obtained data allow for the incubation temperature manipulation and early development and traceability of PGCs, which are important for reproductive biotechniques, establishment of cryobanks, and subsequent reconstitution through a germline chimera. (AU)

• Processo FAPESP: 10/17429-1 - Quimerismo em espécies nativas de peixes como ferramenta para a propagação mediada na aquicultura
• Beneficiário: George Shigueki Yasui
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores