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At least 505 records · Page 28Linked to original sources
PubMed2005

Color-blind fluorescence detection for four-color DNA sequencing.

We present an approach called pulsed multiline excitation (PME) for measurements of multicomponent, fluorescence species and demonstrate its application in capillary electrophoresis for DNA sequencing. To fully demonstrate the advantages of PME, a fluorescent dye set has been developed whose absorption maxima span virtually the entire visible spectrum. Unlike emission wavelength-dependent approaches for identifying fluorescent species, the removal of the spectral component in PME confers a number of advantages including higher and normalized signals from all dyes present in the assay, the elimination of spectral cross-talk between dyes, and higher signal collection efficiency. Base-calling is unambiguously determined once dye mobility corrections are made. These advantages translate into significantly enhanced signal quality as illustrated in the primary DNA sequencing data and provide a means for achieving accurate base-calling at lower reagent concentrations.

Base Sequence↗
PubMedDate not supplied

Coat color genetics of Peromyscus. I. Ashiness, an age-dependent coat color mutation in the deer mouse.

Ashy deer mice (Peromyscus maniculatus) were first discovered about 1960 in a wild population from Oregon. Although indistinguishable from the wild type at weaning, ashy deer mice become progressively grayer with subsequent molts. The trait is inherited as an autosomal recessive and the symbol ahy is assigned for the locus. The trait is distinctly manifest by 6 months of age, at which time homozygotes have white hairs on the muzzle and at the base of the tail. The amount of white gradually increases with age, but development varies greatly among animals. Some become virtually all white by 18 months. Implants of melanocyte-stimulating hormone induced production of pigment in depigmented portions of the coat, indicating that viable melanocytes were present. The ashy deer mouse model may be useful for further study of melanocyte function.

Aging↗