comparación de caracteres corporales y del veneno de bothrops alternatus entre poblaciones de las provincias de buenos aires y entre ríos, argentina
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ID: 250347
2011
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Abstract
Comparamos caracteres corporales y producción de veneno de ejemplares de Bothrops alternatus de una población aislada geográficamente (Olavarría, región de Tandilia, Buenos Aires) con otra en su área de distribución continua de Concordia (Entre Ríos). Estudiamos el largo corporal, peso, separación entre dientes inoculadores, cantidad de veneno y de proteínas en el veneno por ejemplar. No se hallaron diferencias en los caracteres estudiados entre ambas poblaciones (p > 0.05). Las hembras fueron mayores que los machos en ambas muestras, entre un 12-18% (p < 0.05) respecto al largo corporal, y entre 38-57% respecto al peso. No se hallaron diferencias significativas entre los ejemplares de ambas localidades en la cantidad de veneno obtenido respecto a su materia seca (p >0.5; Olavarría: 142 ± 65 mg/animal, Concordia: 160 ± 80 mg/animal), aún ajustando la cantidad de veneno producida respecto al tamaño, mediante el cociente veneno/largo corporal (p >0.6). Tampoco hubo diferencias en el contenido proteico, siendo para ambas muestras de 0.697 ± 0.096 mg de proteínas/mg de veneno seco. Nuestros datos sugieren que los ejemplares de la población aislada de Tandilia no presentan variaciones en el tamaño corporal o en la cantidad de veneno producida, respecto a los ejemplares de Concordia.
Some corporal characters and venom yield of adult specimens of Bothrops alternatus from the isolated region of Olavarría (Tandilian Region, Buenos Aires) and the region of continuous distribution of Concordia (Entre Ríos) were compared. Corporal length, weight, separation between fangs, venom yield by snake and the amount of protein in the venom were determined. No differences in the distinct characters from specimens from both regions were found (p > 0.05). Females were greater than males in both samples, 12-18% (p < 0.05) regarding the corporal length and of 38-57% (p < 0.05) regarding the corporal weight. No difference in the dry venom yield from snakes of both localities was observed (p > 0.5; Olavarría= 142 ± 65 mg / animal, Concordia= 161 ± 80 mg / animal) even adjusting the venom yield with the corporal length by the relation mg of venom / corporal length (p > 0.6). No differences were observed in the protein content of the dry venom which was of 0.697 ± 0.096 mg of protein / mg of dry venom. From the study of these samples, it could be suggest that specimens from meridiona the isolated population of Tandilia, does not present variation in the corporal size or the amount of venom yield regarding those of the continuous distribution (Concordia).
Some corporal characters and venom yield of adult specimens of Bothrops alternatus from the isolated region of Olavarría (Tandilian Region, Buenos Aires) and the region of continuous distribution of Concordia (Entre Ríos) were compared. Corporal length, weight, separation between fangs, venom yield by snake and the amount of protein in the venom were determined. No differences in the distinct characters from specimens from both regions were found (p > 0.05). Females were greater than males in both samples, 12-18% (p < 0.05) regarding the corporal length and of 38-57% (p < 0.05) regarding the corporal weight. No difference in the dry venom yield from snakes of both localities was observed (p > 0.5; Olavarría= 142 ± 65 mg / animal, Concordia= 161 ± 80 mg / animal) even adjusting the venom yield with the corporal length by the relation mg of venom / corporal length (p > 0.6). No differences were observed in the protein content of the dry venom which was of 0.697 ± 0.096 mg of protein / mg of dry venom. From the study of these samples, it could be suggest that specimens from meridiona the isolated population of Tandilia, does not present variation in the corporal size or the amount of venom yield regarding those of the continuous distribution (Concordia).
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marisa2011cuadernoscomparacin
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| Authors | ;Rocco, Daniela Marisa;Botassi, Sandra;Laskowicz, Rodrigo Daniel;Lanari, Laura Cecilia;de Roodt, Adolfo Rafael;Costa de Oliveira, Vanessa;Regner, Pablo Ignacio |
| Journal | weed science |
| Year | 2011 |
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