Dominant character of the molecular marker of a Biomphalaria tenagophila strain (Mollusca: Planorbidae) resistant to Schistosoma mansoni
Mem. Inst. Oswaldo Cruz
;
99(1): 85-87, Feb. 2004. ilus
Article
Dans Anglais
| LILACS
| ID: lil-356449
RESUMO
Biomphalaria tenagophila population from Taim (state of Rio Grande do Sul, Brazil) is totally resistant toSchistosoma mansoni, and presents a molecular marker of 350 bp by polymerase chain reaction and restriction fragment length polymorphism of the entire rDNA internal transcriber spacer. The scope of this work was to determine the heritage pattern of this marker. A series of cross-breedings between B. tenagophila from Taim (resistant) and B. tenagophila from Joinville, state of Santa Catarina (susceptible) was carried out, and their descendants F1 and F2 were submitted to this technique. It was possible to demonstrate that the specific fragment from Taim is endowed with dominant character, since the obtained segregation was typically mendelian.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Schistosoma mansoni
/
Biomphalaria
/
Sélection
/
Croisements génétiques
/
Gènes dominants
Limites du sujet:
Animaux
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2004
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Fundação Oswaldo Cruz/BR
/
Universidade Federal de Minas Gerais/BR
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