observação do comportamento biológico de biomphalaria glabrata de concha anômala observations on the biological behaviour of biomphalaria glabrata with an anomalous shell
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1975
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Abstract
Foi encontrado na criação de Biomphalaria glabrata em laboratório, um caramujo vivo com anomalia na concha. A anomalia consiste na mudança de nível das voltas. O exemplar foi isolado para estudo de seu comportamento biológico. Depois foi juntado a outro exemplar com a mesma anomalia. Os resultados mostraram que suas funções biológicas eram normais. A anomalia é de caráter genético. Na F1 houve aparecimento de 0,01% de anomalia nos embriões. Em vinte e cinco meses de observação dos descendentes desses caramujos foram isolados treze embriões anômalos. Um dos embriões chegou ao estado adulto, mas não desovou.
Among laboratory-bred Biomphalaria glabrata, a live snail in an anomalous shell was found. The anomaly consisted in changes of level in the whorls. The specimen was isolated for a study on its biological behaviour. Afterwards, another specimen displaying a similar anomaly was joined to it. The results obtained showed their biological functions to be normal, their anomaly being of genetic character. In F1 embryos, the anomaly observed was 0.01%. In a 25-month period of investigation, 13 anomalous embryos were isolated. One of the embryo snails reached the adult stage but did not lay any eggs.
Among laboratory-bred Biomphalaria glabrata, a live snail in an anomalous shell was found. The anomaly consisted in changes of level in the whorls. The specimen was isolated for a study on its biological behaviour. Afterwards, another specimen displaying a similar anomaly was joined to it. The results obtained showed their biological functions to be normal, their anomaly being of genetic character. In F1 embryos, the anomaly observed was 0.01%. In a 25-month period of investigation, 13 anomalous embryos were isolated. One of the embryo snails reached the adult stage but did not lay any eggs.
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| Authors | ;Cecília Pereira de Souza |
| Journal | proceedings - 2016 3rd international conference on information technology, computer, and electrical engineering, icitacee 2016 |
| Year | 1975 |
| DOI |
10.1590/S0034-89101975000200016
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