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Caryologia
International Journal of Cytology, Cytosystematics and Cytogenetics
Volume 24, 1971 - Issue 4
167
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Original Articles

Nuclear DNA Content and Morphology of the Karyotype in Certain Palearctic Microchiroptera

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Pages 471-482 | Received 18 Feb 1971, Published online: 30 Jan 2014
 

SUMMARY

Histophotometric evaluation of the DNA content of the post-kinetic nuclei (lymphocytes) has been performed in 8 species of Palearctic Microchiroptera: Rhinolophus ferrumequinum, R. euryale, R. hipposideros, Miniopterus schreibersi, Pipistrellus savii, P. kuhli, Myotys myotis and M. capaccinii. The results obtained are compared with the known data (CAPANNA and CIVITELLI 1970) on the morphology of the karyotype of these species and are discussed whith a view to explaining the relationships between chromosome transformations and variations in DNA content.

Considering the entire field studied, the nuclear DNA content is found to be fairly homogeneous: a fact that has been interpreted as proof that this taxonomic group has attained evolutional stability.

RIASSUNTO

È stato valutato con il metodo istofotometrico il contenuto in DNA dei nuclei postcinetici (linfociti) di 8 specie di Microchirotteri Paleartici: Rhinolophus ferrumequinum, R. euryale, R. hipposideros, Miniopterus schreibers, Pipistrellus savii, P. kuhli, Myotis myotis and M. capaccinii. I dati ottenuti sono stati confrontati con quanto è noto (CAPANNA e CIVITELLI 1970) sulla morfologia del cariotipo delle stesse specie e discussi in ordine a chiarire i rapporti tra trasformazioni cromosomiche e variazione di quantità di DNA.

Considerando l'intero ambito studiato il contenuto nucleare di DNA è risultato abbastanza omogeneo fatto che è stato interpretato come prova di una raggiunta stabilità evolutiva di questo gruppo tassonomico.

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