Los ancestros del fin del mundo: primeras perspectivas sobre la diversidad mitocondrial en la provincia de Tierra del Fuego, Argentina

VELAZQUEZ, IRINA FLORENCIA; TAMBURRINI, CAMILA; DE SAINT PIERRE, MICHELLE; REAL, LUCIANO ESTEBAN; BASSO, NÉSTOR GUILLERMO; AQUILANO, ELIANA; LANATA, JOSÉ LUIS; LAMUEDRA GONZÁLEZ, LAURA DANIELA; GALLI, CLAUDIO; GONZÁLEZ, ANDREA DEL CARMEN; GAMULIN, ARIANA; SALDUTTI, ROMINA; BRAVI, CLAUDIO MARCELO; PAROLÍN, MARÍA LAURA

Revista Argentina de Antropología Biológica

AABA

Lugar: Buenos Aires; Año: 2024 vol. 26 p. 1 - 23

1514-7991

This paper presents the first results on the maternal continental origin of the main localitiesin the province of Tierra del Fuego (TDF): Río Grande (RG) and Ushuaia (USH),by typing of mitochondrial haplogroups (Hg) in 333 participants. The estimation ofHg was carried out using PCR-APLP and sequencing of the HV1 region, evidencing asignificant frequency of maternal Hg of American origin at the provincial level (64.9%).At the local level, a higher proportion of autochthonous lineages was observed in RG(75.1%) compared to USH (57.5%). From the genealogical information of the participants,it was verified that the most frequent geographical origin of both participantsand ancestors is the Central region of Argentina. The differences observed betweenthe two localities, which are only 200 km away, in a province with low demographicdensity, once again highlight the importance of knowing the genealogical informationof the participants, as well as the founding history and economic activities of eachlocality that have motivated the arrival of migrants, to achieve a better contextualizationand understanding of the current genetic composition of the province of TDF