MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Barcoding Neotropical Birds: A join Initiative
Autor/es:
BARREIRA, ANA SOLEDAD; GÓMEZ, ISABEL; BENITES, MARÍA DEL PILAR; KOPUCHIAN, CECILIA; NAOKI, KAZUYA
Lugar:
Ciudad de México D. F., México
Reunión:
Congreso; 3rd International Barcode of Life Conference; 2009
Institución organizadora:
Consortium for the Barcode of Life
Resumen:
The project “Barcoding the birds of Argentina” started in 2005 and the DNA Barcodes for 573 species (2087 specimens) were obtained so far. Some species, many of them distributed also beyond the Argentine border, showed some genetic divergence but a larger intraspecific structuration is expected if the study is extended to a regional scale. Therefore, as part of a second phase of the project, a joint effort between the national ornithological collections of Argentina and Bolivia was initiated in 2008 with the objective of building a tissue collection of the birds of Bolivia, with their corresponding identification vouchers, and obtaining their DNA Barcodes. Around 1400 bird species inhabit Bolivia and only 50 % of them are shared with Argentina; therefore the study of its avifauna results essential to increase the amount of species present in the ABBI database and to study the intraspecific genetic diversity in a larger scale.Two collecting expeditions were conducted in areas of Yungas and Amazonia in La Paz department, and we collected 311 specimens of 127 different species, 53 of which are new for the ABBI dataset. So far 109 DNA Barcodes from 63 different species were obtained. When these sequences were compared to other sequences of the same species deposited in BOLD, we found some cases of large genetic divergence. The most striking one was the case of the Red-crowned Ant-Tanager (Habia rubica), with the populations from Argentina and Bolivia having a mean genetic distance of 7.2 %, which is even larger than the mean nearest congener distance found for the first 500 species analyzed for the birds of Argentina (6.2 %).These preliminary results indicate that the avifauna from Bolivia can add many new species to the ABBI dataset and also reveal cases of deep intraspecific genetic divergence suggesting the presence of cryptic species among Neotropical birds.