Feulgen-DNA amounts and karyotype lengths of three planarian species of the genus Dugesia

C. Pellicciari, S. Garagna, D. Formenti, C. A. Redi, M. G. Manfredi Romanini, M. Benazzi

Research output: Contribution to journalArticlepeer-review

Abstract

Genome sizes of the planarians D. lugubris (2n=8), D. polychroa (2n=8) and D. benazzii (2n=16) were evaluated on metaphase plates by measuring both the Feulgen-DNA contents and the karyotype lengths. In the three species, genome sizes are significantly different; this finding rules out the possibility of a karyotype evolution through simple chromosome rearrangements between D. lugubris and D. polychroa. A different Feulgen-DNA content per unit length of karyotype in the three species studied was also found, which suggests that DNA could be differently packed along metaphase chromosomes.

Original languageEnglish
Pages (from-to)75-77
Number of pages3
JournalExperientia
Volume42
Issue number1
DOIs
Publication statusPublished - Jan 1986

Keywords

  • Cytotaxonomy
  • genome size
  • karyotype length
  • nuclear DNA amount
  • planarians

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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