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1. Genomic history of coastal societies from eastern South America

Author

Ferraz, Tiago, Suarez Villagran, Ximena, Nägele, Kathrin, Radzevičiūtė, Rita, Barbosa Lemes, Renan, Salazar-García, Domingo C., Wesolowski, Verônica, Lopes Alves, Marcony, Bastos, Murilo, Rapp Py-Daniel, Anne, Pinto Lima, Helena, Mendes Cardoso, Jéssica, Estevam, Renata, Liryo, Andersen, Guimarães, Geovan M., Figuti, Levy, Eggers, Sabine, Plens, Cláudia R., Azevedo Erler, Dionne Miranda, Valadares Costa, Henrique Antônio, da Silva Erler, Igor, Koole, Edward, Henriques, Gilmar, Solari, Ana, Martin, Gabriela, Serafim Monteiro da Silva, Sérgio Francisco, Kipnis, Renato, Müller, Letícia Morgana, Ferreira, Mariane, Carvalho Resende, Janine, Chim, Eliane, da Silva, Carlos Augusto, Borella, Ana Claudia, Tomé, Tiago, Müller Plumm Gomes, Lisiane, Barros Fonseca, Diego, Santos da Rosa, Cassia, de Moura Saldanha, João Darcy, Costa Leite, Lúcio, Cunha, Claudia M. S., Viana, Sibeli Aparecida, Ozorio Almeida, Fernando, Klokler, Daniela, Fernandes, Henry Luydy Abraham, Talamo, Sahra, DeBlasis, Paulo, Mendonça de Souza, Sheila, de Paula Moraes, Claide, Elias Oliveira, Rodrigo, Hünemeier, Tábita, Strauss, André, and Posth, Cosimo

Published
2023
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6. Late shellmound occupation in southern Brazil: A multi-proxy study of the Galheta IV archaeological site.

Author

Mendes Cardoso, Jessica, Merencio, Fabiana, Villagran, Ximena, Wesolowski, Veronica, Estevam, Renata, Fuller, Benjamin T., DeBlasis, Paulo, Pierre-Gilson, Simon, Guiserix, Danaé, Méjean, Pauline, Figuti, Levy, Farias, Deisi, Guimaraes, Geovan, Strauss, Andre, and Jaouen, Klervia

Subjects
ARCHAEOLOGICAL excavations, COASTAL archaeology, MARINE resources, SOCIAL change, ANIMAL species, COASTS
Abstract

Brazilian coastal archaeology is renowned for its numerous and large shellmounds (sambaquis), which had been continuously occupied from at least 8000 to 1000 years cal BP. However, changes in their structure and material culture in the late Holocene have led to different hypotheses concerning their ecological and cultural changes. The archaeological site Galheta IV (ca. 1300 to 500 years cal BP) offers new insights into the complexity of the late coastal occupation in southern Brazil. Our attempt was to determine whether Galheta IV can be classified as a sambaqui site, or if it belongs to a Southern proto-Jê settlement. Here, we reassessed Galheta's collections and applied a multi-proxy approach using: new 14C dates, zooarchaeology, δ13C and δ15N isotopes in bulk collagen and 87Sr/86Srenamel isotopic ratios from eight human individuals, ceramics analysis, and FTIR. The results indicate an intense exploitation of marine resources, with an area designated for processing animals located at the opposite side of the funerary areas. Bone tools and specific species of animals were found as burial accompaniments. No evidence of human cremations was detected. 87Sr/86Sr results indicate that the eight human individuals always lived on the coast, and did not come from the inland. The pottery analysis confirms the association with Itararé-Taquara, but contrary to what was assumed by previous studies, the pottery seems related to other coastal sites, and not to the highlands. In light of these findings, we propose that Galheta IV can be considered a funerary mound resulting from long and continuous interactions between shellmound and Southern proto-Jê populations. This study not only enhances our understanding of the late coastal occupation dynamics in southern Brazil but also underscores its importance in reshaping current interpretations of shellmound cultural changes over time. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Muita comida, pouca gente: perspectivas acerca dos sítios rasos do litoral norte do Rio Grande do Sul

Author

Campos, Juliano Bitencourt, DeBlasis, Paulo, Perin, Edenir Bagio, Schneider, Fernanda, Ferrasso, Suliano, Araújo, Adolfo Lino de, Estevam, Renata, Germano, Rodrigo, Silveira, Paola Vieira da, and Dagostim, Silvia Aline Pereira

Subjects
Sambaqui, Litoral norte do Rio Grande do Sul, North coast of Rio Grande do Sul, Guarani, Jê
Abstract

Resumo Este artigo apresenta novos dados para a arqueologia do litoral norte do Rio Grande do Sul, discutindo a cronologia e a natureza funcional dos pequenos assentamentos encontradiços no entorno das lagoas dos Quadros e Itapeva. A análise se dá no contexto das ocupações sambaquianas Jê e Guarani desse amplo e rico território lagunar, conectado tanto aos ambientes praianos e seus campos de dunas, como às matas do sopé da Serra Geral. Confirma-se a interpretação desses assentamentos como acampamentos de curta duração, mas recorrentemente utilizados pelos grupos supracitados. Abstract This paper presents new data in the archaeology of the northern coast of Rio Grande do Sul, Brazil, exploring the chronology and functionality of the small settlements found around the Quadros and Itapeva Lakes. We discuss these small sites within the context of larger sambaqui, Je and Guarani occupation systems within this vast and rich lagoon setting and links to nearby beaches and dune fields as well as forested hinterland mountainous environments, and confirm that these sites were regularly used for short-term occupation by these groups.

Published
2023

8. Genomic history of coastal societies from eastern South America

Author

Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Fundação de Amparo à Pesquisa do Estado de São Paulo, German Academic Exchange Service, Generalitat Valenciana, European Research Council, European Commission, Max Planck Society, Ferraz, Tiago, Villagran, Ximena Suarez, Nägele, Kathrin, Radzevičiūtė, Rita, Lemes, Renan Barbosa, Salazar-García, Domingo C., Wesolowski, Verônica, Alves, Marcony Lopes, Bastos, Murilo, Py-Daniel, Anne Rapp, Lima, Helena Pinto, Cardoso, Jéssica Mendes, Estevam, Renata, Liryo, Andersen, Guimarães, Geovan M., Figuti, Levy, Eggers, Sabine, Plens, Cláudia R., Erler, Dionne Miranda Azevedo, Costa, Henrique Antônio Valadares, Erler, Igor da Silva, Koole, Edward, Henriques, Gilmar, Solari, Ana, Martin, Gabriela, Silva, Sérgio Francisco Serafim da, Kipnis, Renato, Müller, Letícia Morgana, Ferreira, Mariane, Resende, Janine Carvalho, Chim, Eliane, Silva, Carlos Augusto da, Borella, Ana Claudia, Tomé, Tiago, Gomes, Lisiane Müller Plumm, Fonseca, Diego Barros, Rosa, Cassia Santos da, Saldanha, João Darcy de Moura, Leite, Lúcio Costa, Cunha, Claudia M. S., Viana, Sibeli Aparecida, Almeida, Fernando Ozorio, Klokler, Daniela, Fernandes, Henry Luydy Abraham, Talamo, Sahra, DeBlasis, Paulo, Souza, Sheila Mendonça de, Moraes, Claide de Paula, Oliveira, Rodrigo Elias, Hünemeier, Tábita, Strauss, André, Posth, Cosimo, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Fundação de Amparo à Pesquisa do Estado de São Paulo, German Academic Exchange Service, Generalitat Valenciana, European Research Council, European Commission, Max Planck Society, Ferraz, Tiago, Villagran, Ximena Suarez, Nägele, Kathrin, Radzevičiūtė, Rita, Lemes, Renan Barbosa, Salazar-García, Domingo C., Wesolowski, Verônica, Alves, Marcony Lopes, Bastos, Murilo, Py-Daniel, Anne Rapp, Lima, Helena Pinto, Cardoso, Jéssica Mendes, Estevam, Renata, Liryo, Andersen, Guimarães, Geovan M., Figuti, Levy, Eggers, Sabine, Plens, Cláudia R., Erler, Dionne Miranda Azevedo, Costa, Henrique Antônio Valadares, Erler, Igor da Silva, Koole, Edward, Henriques, Gilmar, Solari, Ana, Martin, Gabriela, Silva, Sérgio Francisco Serafim da, Kipnis, Renato, Müller, Letícia Morgana, Ferreira, Mariane, Resende, Janine Carvalho, Chim, Eliane, Silva, Carlos Augusto da, Borella, Ana Claudia, Tomé, Tiago, Gomes, Lisiane Müller Plumm, Fonseca, Diego Barros, Rosa, Cassia Santos da, Saldanha, João Darcy de Moura, Leite, Lúcio Costa, Cunha, Claudia M. S., Viana, Sibeli Aparecida, Almeida, Fernando Ozorio, Klokler, Daniela, Fernandes, Henry Luydy Abraham, Talamo, Sahra, DeBlasis, Paulo, Souza, Sheila Mendonça de, Moraes, Claide de Paula, Oliveira, Rodrigo Elias, Hünemeier, Tábita, Strauss, André, and Posth, Cosimo

Abstract

Sambaqui (shellmound) societies are among the most intriguing archaeological phenomena in pre-colonial South America, extending from approximately 8,000 to 1,000 years before present (yr BP) across 3,000 km on the Atlantic coast. However, little is known about their connection to early Holocene hunter-gatherers, how this may have contributed to different historical pathways and the processes through which late Holocene ceramists came to rule the coast shortly before European contact. To contribute to our understanding of the population history of indigenous societies on the eastern coast of South America, we produced genome-wide data from 34 ancient individuals as early as 10,000 yr BP from four different regions in Brazil. Early Holocene hunter-gatherers were found to lack shared genetic drift among themselves and with later populations from eastern South America, suggesting that they derived from a common radiation and did not contribute substantially to later coastal groups. Our analyses show genetic heterogeneity among contemporaneous Sambaqui groups from the southeastern and southern Brazilian coast, contrary to the similarity expressed in the archaeological record. The complex history of intercultural contact between inland horticulturists and coastal populations becomes genetically evident during the final horizon of Sambaqui societies, from around 2,200 yr BP, corroborating evidence of cultural change.

Published
2023

10. Caracterização fenotípica de plantas transgênicas de tomateiro expressando a proteína reprimida por auxina (SIARP)

Author

Estevam, Renata Kaline Souza, Uchoa, Adriana Ferreira, Voigt, Eduardo Luiz, Peres, Lázaro Eustaquio Pereira, Benedito, Vagner Augusto, and Scortecci, Katia Castanho

Subjects
Solanum lycopersicum, Dormência das gemas axilares, CIENCIAS BIOLOGICAS::BIOQUIMICA [CNPQ], Frutificação precoce, Proteína reprimida por auxina, Floração precoce
Abstract

A floração é um processo vital durante o ciclo de vida das plantas e é marcado pela conversão do meristema apical vegetativo em reprodutivo devido a interações de fatores internos e externos à planta. Apesar de amplo conhecimento ter sido gerado nessa área, ainda se conhece muito pouco sobre o processo de floração e frutificação em tomateiro. Pesquisas anteriores realizadas pelo nosso grupo identificaram o cDNA homólogo a Proteína Reprimida por Auxina (ARP) em bibliotecas subtrativas reprodutivas de tomateiro. Existem poucos dados sobre a proteína ARP na literatura, há relatos de que o gene ARP está relacionado com a maturação do fruto em morango, dormência da gema lateral em ervilha e maturação do pólen em tabaco, mas a função da proteína ARP ainda não está clara. Portanto, o intuito deste trabalho foi compreender o papel da proteína ARP no desenvolvimento vegetativo e nos processos de floração e frutificação por meio da perda e/ou do ganho de função deste cDNA em plantas transgênicas de tomateiro contendo o cassete de superexpressão em orientação senso e antissenso para este cDNA. Dessa forma, foram observadas algumas alterações fenotípicas e estruturais nas plantas transgênicas (35S::SlARP antissenso e senso), como floração e frutificação precoce verificada nas plantas 35S::SlARP antissenso nas gerações T1 a T4, em relação às controles (transformada com o plasmídeo vazio e não transformada). Na análise histológica, notaram-se óvulos maduros nas flores das plantas 35S::SlARP antissenso (gerações T2 a T4), enquanto que as flores das controles não apresentaram óvulos maduros no mesmo período de tempo. Outra modificação observada foi o número superior de gemas laterais desenvolvidas nas plantas 35S::SlARP antissenso nas gerações T3 e T4 quando comparado às plantas 35S::SlARP senso e às plantas controles (transformada com o plasmídeo vazio e não transformada) . Essas produziram ramos com folhas, flores e frutos. Assim como alterações estruturais nos pecíolos das plantas 35S::SlARP antissenso, incluindo uma aparente quantidade maior de elementos de vaso (xilema e floema) do que os pecíolos as plantas 35S::SlARP senso e mutantes relacionados à sinalização da auxina (dgt e entire) e plantas controles. Portanto, estes dados sugerem que a proteína ARP possa estar envolvida na floração, frutificação e na dormência das gemas axilares em tomateiro. Flowering is a vital process during the plant life cycle and it is characterized by the conversion from the vegetative apical meristem into reproductive meristem due to internal and external factors. Despite the considerable knowledge has been produced in this field, not much is known about the flowering and fruiting process in tomato. Furthermore, previous research from our group has identified a cDNA with homology to AUXIN REPRESSED PROTEIN (ARP) in reproductive subtractive libraries from tomato. In the literature, there are few reports where the ARP gene has been associated to fruit ripening in strawberry, dormancy in pea and pollen maturation in tobacco plants, but it is not clear the ARP protein function yet. Therefore, the aim of this work was to understand the role of ARP protein in vegetative development, flowering and fruit set processes through the loss and/or gain of function using this cDNA in transgenic tomato plants with the overexpression cassette constructs in sense and antisense cDNA orientation. Thus, it was observed some phenotypic and structural modifications in transgenic plants (35S::SlARP antisense and sense) such as early flowering and fruiting that was observed in 35S::SlARP antisense plants from the T1 to T4 progeny when compared to controls plants (with the empty vector and wild type plant). In the histological analysis, it was observed mature ovule in 35S::SlARP antisense flowers (progeny T2 to T4), while for the controls plant it wasn’t observed a mature ovule at the same period of time. The other modification observed was a higher number of lateral buds developed in 35S::SlARP antisense plants (progeny T3 and T4) when compared to 35S::SlARP sense and controls plants. These plants produced branches with leaves, flowers and fruits. Besides, it has been observed some structural changes in the petioles from 35S::SlARP antisense plants, including a high number of vessel elements (xylem and phloem) when compared to 35S::SlARP sense, and to dgt and entire mutants (related to auxin signaling) and controls plants (with empty vector and wild type plant). Therefore, these data suggest that ARP protein may be involved in flowering, fruit set and dormancy of axillary buds in tomato.

Published
2016

11. Caracterização funcional de dois cDNAs homólogos à ciclofilina e à proteína reprimida por auxina (ARP) identificados em bibliotecas subtrativas a para floração em tomateiro

Author

Estevam, Renata Kaline Souza, Uchoa, Adriana Ferreira, Peres, Lazaro Eustáquio Pereira, and Scortecci, Kátia Castanho

Subjects
Floração, Overexpression cassette construction, ARP, LeCYP1 and ARP, Bibliotecas subtrativas, Micro-Tom, Subtractive cDNA libraries, Solanum pimpinellifolium, LeCYP1, CIENCIAS BIOLOGICAS::BIOQUIMICA [CNPQ], Construção de cassetes de superexpressão, Flowering
Abstract

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Flowering is a fundamental process in the life cycle for plant. This process is marked by vegetative to reproductive apical meristem conversion, due to interactions between several factors, both internal and external to plant. Therefore, eight subtractive libraries were constructed using apical meristem induced or not induced for two contrasting species: Solanum lycopersicum cv. Micro-Tom and Solanum pimpinellifolium. Several cDNAs were identified and among these, were selected two cDNAs: one homologous cDNA to cyclophilin (LeCYP1) and the other to Auxin repressed protein (ARP). It has observed that LeCYP1 and ARP genes are important in the developmental process to plants. In silico analysis, were used several databases with the exclusion criterion E-value

Published
2011

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