Citotassonomia di Gasteropodi 0pistobranchi italiani e inglesi

Giorgio Mancino

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti (1971)

  • Volume: 51, Issue: 3-4, page 238-248
  • ISSN: 0392-7881

Abstract

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Chromosome studies have been performed on some Italian and English Opisthobranchs. The chromosome numbers n = 17, 2n = 34 have been confirmed for the family Philinidae among Cephalaspidea, while n = 13, 2n = 26 have been ascertained in all Nudibranchs, including the species belonging to the families karyologically studied for the first time in the present work. The single elements of the complements are metacentric or only lightly heterobrachial; the mean chiasma frequency and the chiasma distribution ascertained on metaphase I spermatocyte bivalents are seen to be the same when comparing different populations of the same species or closely related species or even species which are divided from each other by considerable taxonomic differences. Chromosome evidence for sistematics and phylogeny may be brought forward by studies on lampbrush chromosomes whose occurrence has been noticed in prophase oocytes I of a number of mollusks.

How to cite

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Mancino, Giorgio. "Citotassonomia di Gasteropodi 0pistobranchi italiani e inglesi." Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti 51.3-4 (1971): 238-248. <http://eudml.org/doc/296083>.

@article{Mancino1971,
author = {Mancino, Giorgio},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
language = {ita},
month = {9},
number = {3-4},
pages = {238-248},
publisher = {Accademia Nazionale dei Lincei},
title = {Citotassonomia di Gasteropodi 0pistobranchi italiani e inglesi},
url = {http://eudml.org/doc/296083},
volume = {51},
year = {1971},
}

TY - JOUR
AU - Mancino, Giorgio
TI - Citotassonomia di Gasteropodi 0pistobranchi italiani e inglesi
JO - Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
DA - 1971/9//
PB - Accademia Nazionale dei Lincei
VL - 51
IS - 3-4
SP - 238
EP - 248
LA - ita
UR - http://eudml.org/doc/296083
ER -

References

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  1. ALDER, O. F. e HANCOCK, A., «Monogr. Brit. Nudibr. Moll.», 1 (1845-55). 
  2. BARSACCHI, G., BUSSOTTI, L. e MANCINO, G., The maps of the lampbrush chromosomes of Triturus (Amphibia Urodela). IV. Triturus vulgaris meridionalis, «Chromosoma» (Berl.), 31, 255-279 (1970). 
  3. BURCH, J. B. e NATARAJAN, R., Chromosomes of some opisthobranchiate molluscs from Eniwetok Atoll, Western Pacific, «Pacific Sci.», 21, 252-259 (1967). 
  4. CALLAN, H. G., The lampbrush chromosomes of Sepia officinalis L., Anilocra physodes L. and Scyllium catulus Cuv. and their structural relationship to the lampbrush chromosomes of Amphibia, «Pubbl. Staz. zool. Napoli», 29, 329-346 (1957). 
  5. DAVIDSON, E. H., Gene activity in early development, «Academic Press, New York, London» (1969). 
  6. INABA, A., Cytological studies in molluscs. III. A chromosome survey in the opisthobranchiate gastropoda, «Annot. Zool. Jap.», 32, 81-88 (1959). 
  7. INABA, A. e SAIKI, Y., A chromosome survey in sixteen species of Nudibranchs, «Venus», 26, 8-15 (1967). 
  8. MANCINO, G. e SORDI, M., Il corredo cromosomico di Nudibranchi ed Ascoglossi (Gasteropodi Opistobranchi) del Mar Tirreno, «Rend. Acc. Naz. Lincei, Cl. Sci. fis. mat. nat.», ser. 8, 37, 496-500 (1964 a). 
  9. MANCINO, G. e SORDI, M., Ricerche cariologiche in Doris verrucosa (Gasteropodi, Opistobranchi) del litorale livornese, «Atti Soc. tosc. Sci. nat.», ser. B, 71, 3-14 (1964 b). 
  10. MANCINO, G. e SORDI, M., Il corredo cromosomico di alcuni Opistobranchi sacoglossi del Mar Tirreno, «Atti Soc. tosc. Sci. nat.», ser. B, 71, 3-12 (1964 b). 
  11. MANCINO, G. e SORDI, M., Nuovo contributo alla conoscenza della cariologia dei Gasteropodi Opistobranchi, «Arch. zool. ital.», 50, 73-87 (1965 a). 
  12. MANCINO, G. e SORDI, M., Conferma del numero cromosomico di Bosellia mimetica (Gasteropodi Opistobranchi), «Atti Soc. tosc. Sci. nat.», ser. B, 72, 103-105 (1965 b). 
  13. NATARAJAN, R., Cytological studies of Indian molluscs: chromosomes of some opisthobranchs from Porto Novo, South India, «Malacol. Rev.», 3, 19-23 (1970). 
  14. PATTERSON, C. M., Chromosomes of molluscs, «Proc. Symp. Moll., Mar. Biol. Assoc. India», Part 2, 635-686 (1969). 
  15. PRUVOT-FOL, A., Mollusches Opisthobranches, in: «Faune de France», 58 (1954). 
  16. RIBBERT, D. und KUNZ, W., Lampenbürstenchromosomen in den Oocytenkernen von Sepia officinalis, «Chromosoma» (Berl.), 28, 93-106 (1969). 

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