Percorrer por autor "Fernandes, Teresa Matos"
A mostrar 1 - 2 de 2
Resultados por página
Opções de ordenação
- The genetic history of Portugal over the past 5,000 years.Publication . Roca-Rada, Xavier; Davidson, Roberta; Williams, Matthew P.; Villalba-Mouco, Vanessa; Carvalho, António Manuel Faustino de; Ravishankar, Shyamsundar; Collen, Evelyn; Haarkötter, Christian; Taufik, Leonard; Cuesta-Aguirre, Daniel R.; Tente, Catarina; Calleja, Álvaro M Monge; MacRoberts, Rebecca Anne; Melo, Linda; Purnomo, Gludhug A.; Souilmi, Yassine; Tobler, Raymond; Cunha, Eugénia; Tereso, Sofia; Matos, Vítor M. J.; Fernandes, Teresa Matos; Maurer, Anne-France; Silva, Ana Maria; Carvalho, Pedro C.; Llamas, Bastien; Teixeira, João C.Recent ancient DNA studies uncovering large-scale demographic events in Iberia have presented very limited data for Portugal, a country located at the westernmost edge of continental Eurasia. Here, we present the most comprehensive collection of Portuguese ancient genome-wide data, from 67 individuals spanning 5000 years of human history, from the Neolithic to the nineteenth century. We identify early admixture between local hunter-gatherers and Anatolian-related farmers in Neolithic Portugal, with a northeastern-southwestern gradient of increasing Magdalenian-associated ancestry persistence in Iberia. This profile continues into the Chalcolithic, though Bell Beaker-associated sites reveal Portugal's first evidence of Steppe-related ancestry. Such ancestry has a broader demographic impact during the Bronze Age, despite continuity of local Chalcolithic genetic ancestry and limited Mediterranean connections. The village of Idanha-a-Velha emerges in the Roman period as a site of significant migration and interaction, presenting a notably diverse genetic profile that includes North African and Eastern Mediterranean ancestries. The Early Medieval period is marked by the arrival of Central European genetic diversity, likely linked to migrations of Germanic tribes, adding to coeval local, African, and Mediterranean influences. The Islamic and Christian Conquest periods show strong genetic continuity in northern Portugal and significant additional African admixture in the south. The latter remains stable during the post-Islamic period, suggesting enduring African influences. We reveal dynamic patterns of migration in line with cultural exchange across millennia, but also the persistence of local ancestries. Our findings integrate genetic information with historical and archeological data, enhancing our understanding of Iberia's biological and cultural heritage.
- Shrouded in history: unveiling the ways of life of an early Muslim population in Santarém, Portugal (8th– 10th century AD)Publication . MacRoberts, Rebecca Anne; Liberato, Marco; Roca-Rada, Xavier; Valente, Maria João; Relvado, Cláudia; Fernandes, Teresa Matos; Dias, Cristina Barrocas; Llamas, Bastien; Vilar, Hermínia Vasconcelos; Schöne, Bernd R.; Ribeiro, Sara; Santos, José Francisco; Teixeira, João C.; Maurer, Anne-France; Dario Piombino-MascaliIn around 716 AD, the city of Santare´m, Portugal, was conquered by the Berber and Arab armies that swept the Iberian Peninsula and went on to rule the region until the 12th century. Archaeological excavations in 2007/08 discovered an Islamic necropolis (Avenida 5 de Outubro #2–8) that appears to contain the remains of an early Muslim population in Santare´m (8th– 10th century). In this study, skeletal material from 58 adult individuals was analysed for stable carbon (δ13Ccol; δ13Cap), nitrogen (δ15N) and sulphur (δ34S) isotope ratios in bones, and stable oxygen (δ18O), carbon (δ13Cen) and radiogenic strontium ( 87Sr/86Sr) isotopes in tooth enamel. The results of this study revealed a dietary pattern of predominantly C3-plant and domestic C3-fed herbivore consumption during adulthood (δ13Ccol and δ15N, respectively) but a higher proportion of C4-plant input during childhood (δ13Cen) for some individuals—interpreted as possible childhood consumption of millet porridge, a common practice in North Africa—in those with unorthodox burial types (Groups 1 and 2) that was not practiced in the individuals with canonical burials (Group 3). In this first mobility study of a medieval Muslim population in Portugal, δ18ODW values revealed greater heterogeneity in Groups 1 and 2, consistent with diverse origins, some in more humid regions than Santare´m when compared to regional precipitation δ18O data, contrasting the more homogenous Group 3, consistent with the local precipitation δ18O range. Ancient DNA analysis conducted on three individuals revealed maternal (mtDNA) and paternal (Y-chromosome) lineages compatible with a North African origin for (at least) some of the individuals. Additionally, mobility of females in this population was higher than males, potentially resulting from a patrilocal social system, practiced in Berber and Arab communities. These results serve to offer a more detailed insight into the ancestry and cultural practices of early Muslim populations in Iberia.