Adriana Helena Lau
Universidade Luterana do Brasil
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Featured researches published by Adriana Helena Lau.
Zoological Science | 2007
Tanise Knakievicz; Adriana Helena Lau; Daniel Prá; Bernardo Erdtmann
Abstract In the Tricladida (Platyhelminthes), the incidence of different biotypes identified by several ploidy levels is very common. Planarians collected in the State of Rio Grande do Sul were identified using cytogenetics. Different species distributions were observed with respect to Rio Grande do Suls geomorphology, which could have been caused by their different microhabitats. Girardia tigrina and G. anderlani consisted of diploid and triploid individuals, whereas G. schubarti showed diploids, triploids, and mixoploids; for all these species, individuals of different ploidies were sympatric. Only for diploid G. anderlani were B chromosomes observed. These B chromosomes seem to have an irregular segregational behavior during mitosis, and possibly also during meiosis. However the processes (e.g., selection, mutation) of maintaining 2n, 3n, and 2n/3n individuals within natural populations of G. schubarti remain to be clarified.
Mutation Research-genetic Toxicology and Environmental Mutagenesis | 2005
Daniel Prá; Adriana Helena Lau; Tanise Knakievicz; Flávia Rosa Carneiro; Bernardo Erdtmann
Archive | 2001
Daniel Prá; Adriana Helena Lau; Tanise Knakievicz; Flávia Rosa Carneiro; Carlos Eduardo Ferro; Bernardo Erdtmann
Archive | 2001
Daniel Prá; Adriana Helena Lau; Tanise Knakievicz; Flávia Rosa Carneiro; Bernardo Erdtmann
Archive | 2000
Flávia Rosa Carneiro; Adriana Helena Lau; Tanise Knakievicz; Daniel Prá; Amanda Manoela Simões de Vargas; Gabriel Jacobi Segura; Bernardo Erdtmann
Archive | 2000
Flávia Rosa Carneiro; Adriana Helena Lau; Tanise Knakievicz; Daniel Prá; Amanda Manoela Simões de Vargas; Gabriel Jacobi Segura; Bernardo Erdtmann
Archive | 2000
Daniel Prá; Adriana Helena Lau; Tanise Knakievicz; Flávia Rosa Carneiro; Gabriel Jacobi Segura; Bernardo Erdtmann
Archive | 1999
Daniel Prá; Adriana Helena Lau; Tanise Knakievicz; Ana Maria Leal Zanchet; Bernardo Erdtmann
Archive | 1998
Aline Pedroso Lorenz; Adriana Helena Lau; Daniel Prá; Temenouga N. Guecheva; Tanise Knakievicz; Bernardo Erdtmann
Archive | 1998
Tanise Knakievicz; Adriana Helena Lau; Aline Pedroso Lorenz; Daniel Prá; Temenouga N. Guecheva; Bernardo Erdtmann