Analysis of the mitochondrial DNA as a resource for the pre-breeding program of the pacu Piaractus mesopotamicus

• Grant number: 15/14185-8
• Support type: Scholarships in Brazil - Master
• Effective date (Start): October 01, 2015
• Effective date (End): July 31, 2017
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
• Principal researcher: Diogo Teruo Hashimoto
• Grantee: Milena Vieira de Freitas
• Home Institution: Centro de Aquicultura (CAUNESP). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The Brazilian aquaculture has experienced significant growth in recent years. However, the national potential of production will certainly be better explored with the use of products resulting from breeding programs. The pacu, Piaractus mesopotamicus (Characiformes, Serrasalmidae), is a fish of occurrence in the Paraná-Paraguay River Basin and it is one of the main native species used for production in aquaculture. The use of molecular markers in fish farming has been shown to be essential, especially for genetic monitoring of populations and pre-breeding programs. The mitochondrial molecular markers (mtDNA) have a higher rate of mutations and exclusively maternal inheritance, being useful for monitoring the genetic variability of a population and generate information about the founder stock. The objective of this study is to analyze the genetic variability of cultivated stock of Piaractus mesopotamicus using mitochondrial molecular markers (D-loop region), in order to know the genetic profile of farmed animals. Then, we intended to generate subsidies to drive crossings in order to increase the population variability and improvements in genetic management in production systems. The expected result is the generation of haplotypes that can be used in the traceability of individuals resulting from breeding programs. In addition, the results of the present project may detect potential ex-situ genetic banks, formulating biological conservation strategies.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MILENA V. DE FREITAS; RAQUEL B. ARIEDE; MILENE E. HATA; VITO A. MASTROCHIRICO-FILHO; FELIPE DEL PAZO; GABRIELA V. VILLANOVA; FERNANDO F. MENDONÇA; FÁBIO PORTO-FORESTI; DIOGO T. HASHIMOTO. Haplotypes traceability and genetic variability of the breeding population of pacu (Piaractus mesopotamicus) revealed by mitochondrial DNA. GENETICS AND MOLECULAR BIOLOGY, v. 44, n. 1, p. -, 2021. Web of Science Citations: 0.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

FREITAS, Milena Vieira de. Análise do DNA mitocondrial como subsídio para o pré-melhoramento genético do pacu Piaractus mesopotamicus. 2017. Master's Dissertation - Universidade Estadual Paulista "Júlio de Mesquita Filho" Instituto de Biociências (Campus de Botucatu)..