Resumo
In a previous, publication (3) the author described the behaviour of the sex-chromosomes, of Dysdercus mendesi Blöte Following conversation with Dr. Luiz O. T. Mendes, the author was simulated to reexamine the, slides and to study another new series of slides" As a result of these observations the¹ writer now concludes that in the division of the 2nd spermatocytes the sex-chromosomes pass undivided to one pole. Thus half of the spermatids receives a single compound element and half receives none. This is believed to be; similar to the conclusions reached by. Dr.. Luiz O. T. Mendes. Further studies will be made with respect to the nature of the compound element.
Comportamento dos cromossômios sexuais do Dysdercus mendesi na segunda divisão dos espermatócitos
S. de Toledo Piza Jor
Da Escola Superior de Agricultura "Luiz de Queíroz" tia Universidade de S. Paulo.
SUMMARY
In a previous, publication (3) the author described the behaviour of the sex-chromosomes, of Dysdercus mendesi Blöte Following conversation with Dr. Luiz O. T. Mendes, the author was simulated to reexamine the, slides and to study another new series of slides" As a result of these observations the1 writer now concludes that in the division of the 2nd spermatocytes the sex-chromosomes pass undivided to one pole. Thus half of the spermatids receives a single compound element and half receives none. This is believed to be; similar to the conclusions reached by. Dr.. Luiz O. T. Mendes. Further studies will be made with respect to the nature of the compound element.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
LITERATURA CITADA
- 1. Piza, S. de Toledo. Comportamento dos cromossômios na meiose de Euryophthalmus rufipennis Laporte (Hemiptera-Pyrrhocoridae). An. Esc. Sup. Àgric. "Luiz de Queiroz" 3: 28-54. 1946.
- 2. Piza, S. de Toledo. Nota previa sôbre a meiose de Corizus (Liorhyssus) hyalinus (Fabr.) (Hemiptera-Corizidae). An. Esc. Sup. Agric. "Luiz de Queiroz" 3: 141-148. 1946.
- 3. Piza, S. de Toledo. Cromossômios de Dysdercus. (Hemiptera-Pyrrhocoridae). An. Esc. Sup. Agric. "Luiz de Queiroz" 4: 210-216. 1947.
Datas de Publicação
-
Publicação nesta coleção
08 Jun 2010 -
Data do Fascículo
1947
