Genetic diversity of Lippia rotundifolia Cham. in Minas Gerais, Brazil



Document title: Genetic diversity of Lippia rotundifolia Cham. in Minas Gerais, Brazil
Journal: Acta scientiarum. Biological sciences
Database: PERIÓDICA
System number: 000433577
ISSN: 1679-9283
Authors: 1
2
1
Institutions: 1Universidade Federal de Lavras, Programa de Pos-Graduacao em Plantas Medicinais, Aromaticas e Condimentares, Lavras, Minas Gerais. Brasil
2Universidade Federal de Minas Gerais, Instituto de Ciencias Agrarias, Montes Claros, Minas Gerais. Brasil
Year:
Volumen: 41
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract Lippia rotundifolia is an aromatic species, endemic from Campos rupestres and isolated by mountains. We aimed with the research to study the genetic variability of chá-de-pedestre (Lippia rotundifolia Cham.) with natural occurrence in ten places of the State of Minas Gerais, from molecular markers of ISSR type. The places of collection were: Parque Estadual de Serra Nova; Parque Estadual Veredas do Peruaçu; Abóboras community; Gigante community; edge of Rio do Peixe; environmental preservation area of Olhos d ́água; private property in Joaquim Felício; Parque Estadual do Rio Preto; São Gonçalo do Rio das Pedras and brook of Rio Tigre. After the establishment of the extraction and amplification of DNA fragments with primers ISSR, an array of genetic distance was built. From this matrix, we analyzed the genetic diversity index as the allelic frequency (Na and Ne), Shannos ́s index (H ́), polymorphism (PLP), heterozygosity (He) and gene flow (Nm). The result showed higher genetic variability within the population (93%). The genetic diversity index was low (He = 0.132; H ́= 0.214; Na = 1.111; Ne = 1.183; PLP = 56.67%). In general the species have low genetic diversity. The greatest diversity in populations occurred with an average temperature of 20°C. The Rio Tigre showed higher genetic distance and isolation
Disciplines: Biología
Keyword: Angiospermas,
Genética,
Plantas medicinales,
Especies endémicas,
Variabilidad genética,
Diversidad genética,
Lippia rotundifolia,
Verbenaceae,
Brasil
Keyword: Angiosperms,
Genetics,
Medicinal plants,
Endemic species,
Genetic variability,
Genetic diversity,
Lippia rotundifolia,
Verbenaceae,
Brazil
Full text: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42754/pdf