Biogeography and Karyotypes of Freshwater Planarians (Platyhelminthes, Tricladida, Paludicola) in Southern Brazil

スポンサーリンク

概要

• 論文の詳細を見る

• 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.

• 社団法人　日本動物学会の論文

著者

• Knakievicz Tanise

  Programa de Pós-Graduação em Genética e Biologia Molecular. Universidade Federal do Rio Grande do Su

• Lau Adriana

  Universidade Luterana do Brasil (ULBRA)

• Prá Daniel

  Programa de Pós-Graduação em Genética e Biologia Molecular. Universidade Federal do Rio Grande do Su

• Erdtmann Bernardo

  Instituto de Biotecnologia da Universidade de Caxias do Sul (UCS)

• Knakievicz Tanise

  Programa de Pós-Graduação em Genética e Biologia Molecular. Universidade Federal do Rio Grande do Sul (UFRGS)

関連論文

• Biogeography and Karyotypes of Freshwater Planarians (Platyhelminthes, Tricladida, Paludicola) in Southern Brazil

スポンサーリンク