Variación alozimática en el crustáceo Artemia franciscana (Anostraca: Artemiidae) del Gran Lago Salado en varias condiciones experimentales / Allozymatic variation in crustacea Artemia franciscana (Anostraca: Artemiidae) of Freat Salt Lake in different experimental conditions]
Rev. biol. trop
;
50(1): 87-95, Mar. 2002.
Artigo
em Espanhol
| LILACS
| ID: lil-333046
RESUMO
Starch gel electrophoresis was used to analyze the allelic variability of four polymorphic loci (Lap-2, Lap-3, Pgm and Gpi) from a single population of Artemia franciscana (Kellogg, 1906) from the Great Salt Lake (Utah, USA), cultured under eight different experimental conditions. The organisms were cultured to the adult stage under a 2 x 2 x 2 experimental design (22 and 30 degrees C; 30 and 60 ppt salinity; and Dunaliella sp. and Spirulina sp. as food). There were significant differences in allele frequencies at each locus and the mean expected heterozygosity (He) varied from 0.236 to 0.447. Therefore, the hypothesis of no allelic differences among treatments is rejected. With relation to a possible correlation between genetic variability and the phenotypic characteristics, the results show that there is probably a synergic effect between the different salinities and temperatures on the survival of heterozygous organisms in the different loci.
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Índice:
LILACS (Américas)
Assunto principal:
Artemia
/
Variação Genética
/
Alelos
/
Isoenzimas
Limite:
Animais
Idioma:
Espanhol
Revista:
Rev. biol. trop
Assunto da revista:
Biologia
/
Medicina Tropical
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
México
/
Venezuela
Instituição/País de afiliação:
Universidad Autónoma de Baja California/MX
/
Universidad Nacional Experimental Francisco de Miranda/VE
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