Results: 32

Molecular Phylogenetics of Physa acuta (Pulmonata: Basommatophora): an Invasive species in Central Punjab Pakistan

Braz. j. biol; 83 (), 2023
Abstract Physids belong to Class Gastropoda; belong to Phylum Mollusca and being bioindicators, intermediate hosts of parasites and pests hold a key position in the ecosystem. There are three species of Genus Physa i.e. P. fontinalis, Physa acuta and P. gyrina water bodies of Central Punjab and were char...

Diversidad genética de aedes aegypti en el eje transfronterizo Central-Alto Paraná en Paraguay

RESUMEN Objetivos: Conocer la diversidad genética de Aedes aegypti en el corredor vial transfronterizo Central-Alto Paraná de Paraguay, con registros de casos de dengue. Materiales y métodos: Se seleccionaron veinte hembras adultas de la eclosión de huevos de Ae. aegypti procedentes de casas geol...

Evaluation of eight protocols for genomic DNA extraction of Hypostomus commersoni Valenciennes, 1836 (Loricariidae: Siluriformes)

Braz. j. biol; 81 (3), 2021
Abstract The principle and the techniques applied in DNA extraction play a pivotal role in the obtention of a purified genetic material. The present study investigates the efficiency of eight protocols in the DNA extraction of Hypostomus commersoni, an essential component of South American freshwater ich...

Molecular epidemiology of Pseudomonas aeruginosa isolated from lower respiratory tract of ICU patients

Braz. j. biol; 81 (2), 2021
Lower respiratory tract infections (LRTIs) caused by Pseudomonas aeruginosa are the most common infection among hospitalized patients, associated with increased levels of morbidity, mortality and attributable health care costs. Increased resistant Pseudomonas worldwide has been quite meaningful to patien...

Genetic authentication of Eclipta prostrate (Asteraceae) from Penthorum chinense (Penthoraceae) by Sequence Characterized Amplified Region (SCAR) markers

Rev. biol. trop; 68 (1), 2020
Introduction: For the rapid and accurate genetic identification and authentication of living organisms, improved random amplified polymorphic DNA (RAPD) fragment based development of sequence-characterized amplified region (SCAR) markers is an important genetic technique. Objective: This study aime...

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L) cultivar Khalas

Biol. Res; 53 (), 2020
BACKGROUND: Soil salinity causes huge economic losses to agriculture productivity in arid and semiarid areas world-wide. The affected plants face disturbances in osmotic adjustment, nutrient transport, ionic toxicity and reduced photosynthesis. Conventional breeding approaches produce little success in c...

Frecuencia de heteroplasmia en las regiones hipervariables HVI y HVII del ADN Mitocondrial en una muestra de la población de Maracaibo, Venezuela
Frequency of heteroplasmy in HVI and HVII mitocondrial genome regions in a population sample of Maracaibo,Venezuela

Justificación:El estudio de los polimorfismos de las regiones hipervariables I y II (HVI y HVII) del ADN mitocondrial (ADNmt) se ha convertido en una herramienta invaluable para la ciencia forense, ya que enalgunas ocasionesun determinadoindividuopuedepresentar más de un tipo de AD...

Genetic analysis of Penthorum chinense Pursh by improved RAPD and ISSR in China

Background: Penthorum chinense Pursh (P. chinense) is a well-known traditional Chinese medicine (TCM) plant, which has long been used for the prevention and treatment of hepatic diseases. This study aimed to genetically characterize the varieties of P. chinense from different geographic localities of Chi...

Estimation of genetic variation in closely related cycad species in Ceratozamia (Zamiaceae: Cycadales) using rapds markers

Rev. biol. trop; 65 (1), 2017
AbstractThe Ceratozamianorstogii complex from Southern Mexico is made up of four closely related taxa and occurs in similar habitats (Quercus forest). All have linear-lanceolate leaflets with great similarity between them, especially in juvenile stages, but differentiate with age. There has been debate r...

Molecular epidemiology of cystic echinococcosis: genotypic characterization in humans and different livestock

Int. j. morphol; 34 (4), 2016
Echinococcus Granulosus (EG) is the major cause of cystic echinococcosis in humans and livestock in the world. In Chile is a zoonosis of great importance. The most frequently affected geographic areas are the Regions of Aysén, Los Rios, Los Lagos, Coquimbo and the Araucanía. Hence, it was discovered th...