I cariotipi di Triturus marmoratus e T. cristatus studiati con il 'C-staining method'

Giorgio Mancino; Matilde Ragghianti; Stefania Bucci Innocenti

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti (1973)

  • Volume: 55, Issue: 5, page 559-564
  • ISSN: 0392-7881

Abstract

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The mitotic chromosomes of the newt species Triturus marmoratus and T. cristatus were submitted to the C -staining method. All the centromeres are darkly stained and single darkly stained bands are induced on both sides of the centromere regions as well as on various chromosomes in subterminal position. Therefore, the C-bands allow the identification of the single elements of the complements and their more exact arrangement into karyotypes. In both species, the sex chromosomes show an extensive dark segment along the long arm corresponding to the heteromorphie region of lampbrush chromosomes I. In spite of the different number and location of the nucleolus-organizing regions and some discrepancies concerning certain subterminal bands, the two karyotypes appear of similar morphology and structure. There is no evidence for extensive structural rearrangements: probably T. marmoratus and T. cristatus have mostly undergone a certain differentiation caused by allelic changes in single genetic loci during the processes of karyological evolution and speciation.

How to cite

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Mancino, Giorgio, Ragghianti, Matilde, and Bucci Innocenti, Stefania. "I cariotipi di Triturus marmoratus e T. cristatus studiati con il "C-staining method"." Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti 55.5 (1973): 559-564. <http://eudml.org/doc/295911>.

@article{Mancino1973,
author = {Mancino, Giorgio, Ragghianti, Matilde, Bucci Innocenti, Stefania},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
language = {ita},
month = {11},
number = {5},
pages = {559-564},
publisher = {Accademia Nazionale dei Lincei},
title = {I cariotipi di Triturus marmoratus e T. cristatus studiati con il "C-staining method"},
url = {http://eudml.org/doc/295911},
volume = {55},
year = {1973},
}

TY - JOUR
AU - Mancino, Giorgio
AU - Ragghianti, Matilde
AU - Bucci Innocenti, Stefania
TI - I cariotipi di Triturus marmoratus e T. cristatus studiati con il "C-staining method"
JO - Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
DA - 1973/11//
PB - Accademia Nazionale dei Lincei
VL - 55
IS - 5
SP - 559
EP - 564
LA - ita
UR - http://eudml.org/doc/295911
ER -

References

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