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12 results on '"Martins, Lívia do Vale"'

1. POTENCIAIS FARMACOLÓGICOS DE ESPÉCIES DE Solanum L.

Author

Sousa, Márcia Vieira de, primary, Sampaio, Loane Costa, additional, Adriano, Mariana Gomes, additional, Leão, Sandy Karine da Silva, additional, Silva, Grazielly Santos da, additional, Lopes, Ângela Celis de Almeida, additional, Feitoza, Lidiane de Lima, additional, Martins, Artemisa Nazaré Costa Borges, additional, Gomes, Regina Lúcia Ferreira, additional, and Martins, Lívia do Vale, additional

Published
2022
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2. MAPEAMENTOS GENÉTICO, CITOGENÉTICO E DE SEQUENCIAMENTO DO FEIJÃOFAVA: UMA REVISÃO

Author

Melo, André Oliveira, primary, Costa, Marcones Ferreira, additional, Santos, Michelli Ferreira dos, additional, Silva, Verônica Brito da, additional, Gomes, Maria Fernanda da Costa, additional, Orasmo, Gleice Ribeiro, additional, Feitoza, Lidiane de Lima, additional, Martins, Lívia do Vale, additional, Silva, Raimundo Nonato Oliveira, additional, Lopes, Ângela Celis de Almeida, additional, Gomes, Regina Lucia Ferreira, additional, and Valente, Sérgio Emílio dos Santos, additional

Published
2022
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3. DIVERSIDADE DE PLANTAS NO CERRADO BRASILEIRO: UM ENFOQUE EM Parkia platycephala

Author

Silva, Jarbson Henrique Oliveira, primary, Sousa, Márcia Vieira de, additional, Lima, Paulo Sarmanho da Costa, additional, Gomes, Regina Lúcia Ferreira, additional, Lopes, Ângela Celis de Almeida, additional, Valente, Sérgio Emílio dos Santos, additional, Silva, Verônica Brito da, additional, Peron, Ana Paula, additional, Martins, Lívia do Vale, additional, and Feitoza, Lidiane de Lima, additional

Published
2021
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4. Cytogenetic Analysis of the Fish Genus Carassius Indicates Divergence, Fission, and Segmental Duplication as Drivers of Tandem Repeat and Microchromosome Evolution.

Author

Fornaini, Nicola R, Černohorská, Halina, Martins, Lívia do Vale, and Knytl, Martin

Subjects
TANDEM repeats, CRUCIAN carp, GOLDFISH, NUCLEAR DNA, CYTOGENETICS, CHROMOSOMES
Abstract

Fishes of the genus Carassius are useful experimental vertebrate models for the study of evolutionary biology and cytogenetics. Carassius demonstrates diverse biological characteristics, such as variation in ploidy levels and chromosome numbers, and presence of microchromosomes. Those Carassius polyploids with ≥ 150 chromosomes have microchromosomes, but the origin of microchromosomes, especially in European populations, is unknown. We used cytogenetics to study evolution of tandem repeats (U1 and U2 small nuclear DNAs and H3 histone) and microchromosomes in Carassius from the Czech Republic. We tested the hypotheses whether the number of tandem repeats was affected by polyploidization or divergence between species and what mechanism drives evolution of microchromosomes. Tandem repeats were found in tetraploid and hexaploid Carassius gibelio , and tetraploid Carassius auratus and Carassius carassius in conserved numbers, with the exception of U1 small nuclear DNA in C. auratus. This conservation indicates reduction and/or loss in the number of copies per locus in hexaploids and may have occurred by divergence rather than polyploidization. To study the evolution of microchromosomes, we used the whole microchromosome painting probe from hexaploid C. gibelio and hybridized it to tetraploid and hexaploid C. gibelio , and tetraploid C. auratus and C. carassius. Our results revealed variation in the number of microchromosomes in hexaploids and indicated that the evolution of the Carassius karyotype is governed by macrochromosome fissions followed by segmental duplication in pericentromeric areas. These are potential mechanisms responsible for the presence of microchromosomes in Carassius hexaploids. Differential efficacy of one or both of these mechanisms in different tetraploids could ensure variability in chromosome number in polyploids in general. [ABSTRACT FROM AUTHOR]

Published
2024
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6. PIMENTAS Capsicum L.: CONSERVAÇÃO DOS RECURSOS GENÉTICOS, CARACTERIZAÇÃO MORFOLÓGICA E CITOGENÉTICA E SEQUENCIAMENTO GENÔMICO (PARTE II)

Author

Almeida, Breno Machado de, primary, Lopes, Ângela Celis de Almeida, additional, Gomes, Regina Lúcia Ferreira, additional, Martins, Lívia do Vale, additional, Valente, Sérgio Emílio dos Santos, additional, Peron, Ana Paula, additional, Silva, Verônica Brito da, additional, and Feitoza, Lidiane de Lima, additional

Published
2020
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7. PIMENTAS CAPSICUM L.: ASPECTOS BOTÂNICOS, CENTRO DE ORIGEM, DIVERSIFICAÇÃO E DOMESTICAÇÃO, IMPORTÂNCIA SOCIOECONÔMICA E PROPRIEDADES TERAPÊUTICAS (PARTE I)

Author

Almeida, Breno Machado de, primary, Silva, Verônica Brito da, additional, Lopes, Ângela Celis de Almeida, additional, Gomes, Regina Lúcia Ferreira, additional, Martins, Lívia do Vale, additional, Valente, Sérgio Emílio dos Santos, additional, Peron, Ana Paula, additional, and Feitoza, Lidiane de Lima, additional

Published
2020
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8. Morphological diversity among Brazilian Capsicum peppers

Author

Almeida, Breno Machado de, primary, Feitoza, Lidiane de Lima, additional, Lopes, Ângela Celis de Almeida, additional, Gomes, Regina Lúcia Ferreira, additional, Almeida, Rafael da Costa, additional, Martins, Lívia do Vale, additional, and Silva, Verônica Brito da, additional

Published
2023
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