Abstract
Differential DNA synthesis is demonstrated in asynaptic regions of the polytenic chromosomes of the Anopheles atroparvus x A. labranchiae hybrid. This differential synthesis is present both in homologous segments with different banding patterns and in morphologically identical segments. Each differential synthesis appears to be related to a specific portion of the replication cycle and due to the fact that one of the two homologues requires a shorter period of time for its duplication.
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Farci, A., Laudani, U., Lecis, A. R.: A revision of the banding pattern of salivary chromosomes of Anopheles atroparvus. Z. Zool. Syst. Evolutionsforsch. (in press, 1973)
Frizzi, G.: Cytogenetics of the Anophelinae: theoretical and practical aspects. Bull. Instit. Marine Medicine (Gdansk) 18, 121–129 (1967)
Hägele, K.: DNS-Replikationsmuster der Speicheldrüsen-Chromosomen von Chironomiden. Chromosoma (Berl.) 31, 91–138 (1970)
Keyl, H. G., Pelling, C.: Differentielle DNS-Replikation in den Speicheldrüsen-Chromosomen von Chironomus thummi. Chromosoma (Berl.) 14, 347–359 (1963)
Kitzmiller, J. B., Frizzi, G., Baker, R. H.: Evolution and speciation within the maculipennis complex of the genus Anopheles. In: Genetics of insect vectors of disease, p. 151–210. Amsterdam: Elsevier 1967
Tiepolo, L., Laudani, U.: DNA synthesis in polytenic chromosomes of Anopheles atroparvus. Chromosoma (Berl.) 36, 305–312 (1972)
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Tiepolo, L., Diaz, G. & Laudani, U. Differential DNA synthesis in homologous regions of hybrid polytenic chromosomes (Anopheles atroparvus x A. labranchiae). Chromosoma 45, 81–89 (1974). https://doi.org/10.1007/BF00283831
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DOI: https://doi.org/10.1007/BF00283831