| international study on artemia. lxii. genomic relationships between artemia franciscana and a. persimilis, inferred from chromocentre numbers. | chromocentres, i.e. heavily stainable heterochromatic areas with highly repetitive dna (a 130-bp repeat in the order of 6 x 105 copies per haploid genome) observed in the resting nucleus, are a reliable taxonomic trait and a good marker for speciation in artemia. this chromosome marker was evaluated in populations of two new world sibling species: a. franciscana, from north, central and south america, and a. persimilis from argentina. artemia persimilis showed the characteristically low average ... | 2001 | 11703507 |
| mechanisms associated with cellular desiccation tolerance of artemia encysted embryos from locations around the world. | using differential scanning calorimetry we demonstrated the presence of biological glasses and measured the glass transition temperatures (tg) in dry encysted gastrula embryos (cysts) of the brine shrimp, artemia, from eleven different locations, two of which provided cysts from parthenogenetic animals. values for tg were highest, by far, in artemia franciscana cysts from the mekong delta, vietnam (vn), these cysts having been produced from previous sequential inoculations into growth ponds of c ... | 2011 | 21664479 |
| comparing the acute response to cadmium toxicity of nauplii from different populations of artemia. | the lethal responses to cadmium of instar ii nauplii from eight populations of artemia belonging to the species artemia franciscana, artemia salina, artemia persimilis, and artemia parthenogenetica have been compared. generalized linear models were used to fit mortality. the model indicates that there is a relationship between species, type of population, and mortality rate. the two populations of a. franciscana were the most sensitive to cadmium toxicity (median lethal concentration, lc50, of 9 ... | 2002 | 11833813 |
| species-specific rflp pattern in the heat shock protein26 gene (hsp26): a single-locus tool for species identification and experimental testing of habitat-induced isolation in the new world artemia species. | the brine shrimp artemia (crustacea, branchiopoda), a paradigmatic inhabitant of hypersaline lakes, has molecular features to survive under stressful conditions, such as the p26 heat shock protein. we report the rflp fingerprinting pattern (four restriction enzymes) of a 217 bp fragment of exon2 of the hsp26 gene in six artemia franciscana and four artemia persimilis populations, the most genetically divergent artemia species co-occurring in latitudinal extremes of chile. the species-specific rf ... | 2010 | 21565017 |