Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility
The development of integrated measures which involve sterile mate release to supplement the conventional insecticidal techniques used in controlagainst insects of medical importance, raised the question, whether the vectors of Chagas'disease possess the natural mechanisms by manipulation of whi...
Published in: | Revista da Sociedade Brasileira de Medicina Tropical |
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Sociedade Brasileira de Medicina Tropical (SBMT)
1976
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Online Access: | https://doi.org/10.1590/S0037-86821976000600008 https://doaj.org/article/d90bb18cabd94b97b10df18035c7f26e |
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ftdoajarticles:oai:doaj.org/article:d90bb18cabd94b97b10df18035c7f26e 2023-05-15T15:16:28+02:00 Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility Alina Perlowagora-Szumlewicz M.V. Correia A.M. Reis Trinchet 1976-12-01T00:00:00Z https://doi.org/10.1590/S0037-86821976000600008 https://doaj.org/article/d90bb18cabd94b97b10df18035c7f26e EN eng Sociedade Brasileira de Medicina Tropical (SBMT) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821976000600008&lng=en&tlng=en https://doaj.org/toc/1678-9849 1678-9849 doi:10.1590/S0037-86821976000600008 https://doaj.org/article/d90bb18cabd94b97b10df18035c7f26e Revista da Sociedade Brasileira de Medicina Tropical, Vol 10, Iss 6, Pp 367-383 (1976) Arctic medicine. Tropical medicine RC955-962 article 1976 ftdoajarticles https://doi.org/10.1590/S0037-86821976000600008 2022-12-31T02:44:16Z The development of integrated measures which involve sterile mate release to supplement the conventional insecticidal techniques used in controlagainst insects of medical importance, raised the question, whether the vectors of Chagas'disease possess the natural mechanisms by manipulation of which they may be controlled. Results of earlier expenments, that had been published previously, were restricted to fragmentary information that raised various questions, the answer to which became available in the study herein described. Interspecific hybrids were produced from reciprocal crosses between T. pseudomaculata and T. sórdida and from unilateral crosses between female T. pseudomaculata and male. T. infestans. These females mated with males, laid less than the normal complement of eggs, but offspring was relatively abundant. When T. pseudomaculata females were paired with T. brasiliensis males, hybridization was more difficult because few of the females mated and those that did had a strongly reduced fertility. Adults emerged from ali crosses but exhibited sex disproportion, females predominating in all populations but one. The two Rhodnius species tested were also found to cross, but only when female R. prolixus were paired with male R. neglectus. These females laid a relatively high complement o f eggs, had a strongly reduced fertility, but 50% of the fertile eggs developed into vigorous adults, males predominating females. Neither type of hybrid male elicited fertilized eggs from either parental type of female, through their vesicula seminal is were found to be packed with spermatozoa, some normal looking and moving, others underdeveloped and motionless. Although, no artificial insemination was performed, the sperm in itself did not appear to be the prime inducer of sterility. Females paired with these hybrids did mate, sperm was transfered, as evidenced by the discharged spermatophores smeared with sperm, but did notcontain spermatozoa in their spermatecae. The failure of the sperm to migrate to the spermatecae ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista da Sociedade Brasileira de Medicina Tropical 10 6 367 383 |
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language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 |
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Arctic medicine. Tropical medicine RC955-962 Alina Perlowagora-Szumlewicz M.V. Correia A.M. Reis Trinchet Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 |
description |
The development of integrated measures which involve sterile mate release to supplement the conventional insecticidal techniques used in controlagainst insects of medical importance, raised the question, whether the vectors of Chagas'disease possess the natural mechanisms by manipulation of which they may be controlled. Results of earlier expenments, that had been published previously, were restricted to fragmentary information that raised various questions, the answer to which became available in the study herein described. Interspecific hybrids were produced from reciprocal crosses between T. pseudomaculata and T. sórdida and from unilateral crosses between female T. pseudomaculata and male. T. infestans. These females mated with males, laid less than the normal complement of eggs, but offspring was relatively abundant. When T. pseudomaculata females were paired with T. brasiliensis males, hybridization was more difficult because few of the females mated and those that did had a strongly reduced fertility. Adults emerged from ali crosses but exhibited sex disproportion, females predominating in all populations but one. The two Rhodnius species tested were also found to cross, but only when female R. prolixus were paired with male R. neglectus. These females laid a relatively high complement o f eggs, had a strongly reduced fertility, but 50% of the fertile eggs developed into vigorous adults, males predominating females. Neither type of hybrid male elicited fertilized eggs from either parental type of female, through their vesicula seminal is were found to be packed with spermatozoa, some normal looking and moving, others underdeveloped and motionless. Although, no artificial insemination was performed, the sperm in itself did not appear to be the prime inducer of sterility. Females paired with these hybrids did mate, sperm was transfered, as evidenced by the discharged spermatophores smeared with sperm, but did notcontain spermatozoa in their spermatecae. The failure of the sperm to migrate to the spermatecae ... |
format |
Article in Journal/Newspaper |
author |
Alina Perlowagora-Szumlewicz M.V. Correia A.M. Reis Trinchet |
author_facet |
Alina Perlowagora-Szumlewicz M.V. Correia A.M. Reis Trinchet |
author_sort |
Alina Perlowagora-Szumlewicz |
title |
Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
title_short |
Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
title_full |
Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
title_fullStr |
Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
title_full_unstemmed |
Induction of male sterility through manipulation of genetic mechanisms present in vector species of Triatominae. II. Partial restoration of male fertility |
title_sort |
induction of male sterility through manipulation of genetic mechanisms present in vector species of triatominae. ii. partial restoration of male fertility |
publisher |
Sociedade Brasileira de Medicina Tropical (SBMT) |
publishDate |
1976 |
url |
https://doi.org/10.1590/S0037-86821976000600008 https://doaj.org/article/d90bb18cabd94b97b10df18035c7f26e |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista da Sociedade Brasileira de Medicina Tropical, Vol 10, Iss 6, Pp 367-383 (1976) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821976000600008&lng=en&tlng=en https://doaj.org/toc/1678-9849 1678-9849 doi:10.1590/S0037-86821976000600008 https://doaj.org/article/d90bb18cabd94b97b10df18035c7f26e |
op_doi |
https://doi.org/10.1590/S0037-86821976000600008 |
container_title |
Revista da Sociedade Brasileira de Medicina Tropical |
container_volume |
10 |
container_issue |
6 |
container_start_page |
367 |
op_container_end_page |
383 |
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1766346762928259072 |