Keith A. Crandall

Distinguishing importation from diversification of quinolone-resistant Neisseria gonorrhoeae by molecular evolutionary analysis (2007)

Crandall, Keith A.; Perez-Losada, Marcos

Background- Distinguishing the recent introduction of quinolone resistant gonococci into a population from diversification of resistant strains already in the population is important for planning...

Recombination Estimation under Complex Evolutionary Models with the Coalescent Composite Likelihood Method (2006)

Carvajal-Rodríguez, Antonio, Crandall, Keith A., Posada, David

The composite-likelihood estimator (CLE) of the population recombination rate considers only sites with exactly two alleles under a finite-sites mutation model (McVean, Awadalla, and Fearnhead 2002)....

Molecular Characterization of Crustacean Visual Pigments and the Evolution of Pancrustacean Opsins (2006)

Porter, Megan L., Cronin, Thomas W., McClellan, David A., Crandall, Keith A.

Investigations of opsin evolution outside of vertebrate systems have long been focused on insect visual pigments while other groups have received little attention. Furthermore, few studies have...

Applications of phylogenetics to issues in freshwater crayfish biology (2005)

Crandall, Keith A.

reshwater crayfish have served as model organisms for over 125 years in scientific research, from areas such as neurobiology and vision research to conservation biology and evolution. Recently,...

Applications of phylogenetics to issues in freshwater crayfish biology (2005)

Crandall, Keith A.;

Freshwater crayfish have served as model organisms for over 125 years in scientific research, from areas such as neurobiology and vision research to conservation biology and evolution. Recently,...

Testing Species Boundaries in an Ancient Species Complex with Deep Phylogeographic History: Genus Xantusia (Squamata: Xantusiidae) (2004)

Crandall, Keith A.

Identification of species in natural populations has recently received increased attention with a number of investigators proposing rigorous methods for species delimitation. Morphologically...

The Impact of Species Concept on Biodiversity Studies (2004)

Crandall, Keith A.

Species are defined using a variety of different operational techniques. While discussion of the various methodologies has previously been restricted mostly to taxonomists, the demarcation of species...

Testing Species Boundaries in an Ancient Species Complex with Deep Phylogeographic History: Genus Xantusia (Squamata: Xantusiidae) (2004)

Crandall, Keith A.;

Identification of species in natural populations has recently received increased attention with a number of investigators proposing rigorous methods for species delimitation. Morphologically...

The Impact of Species Concept on Biodiversity Studies (2004)

Crandall, Keith A.;

Species are defined using a variety of different operational techniques. While discussion of the various methodologies has previously been restricted mostly to taxonomists, the demarcation of species...

Human Immunodeficiency Virus Type 1 Quasi Species That Rebound after Discontinuation of Highly Active Antiretroviral Therapy Are Similar to the Viral Quasi Species Present before Initiation of Therapy (2001)

Crandall, Keith A.

In an effort to identify the sources of the viruses that emerge after discontinuation of therapy, analyses of human immunodeficiency virus (HIV) quasi species were done for 3 patients with sustained...

Human Immunodeficiency Virus Type 1 Quasi Species That Rebound after Discontinuation of Highly Active Antiretroviral Therapy Are Similar to the Viral Quasi Species Present before Initiation of Therapy (2001)

Crandall, Keith A.;

In an effort to identify the sources of the viruses that emerge after discontinuation of therapy, analyses of human immunodeficiency virus (HIV) quasi species were done for 3 patients with sustained...

Population Genetics of the porB Gene of Neisseria gonorrhoeae: Different Dynamics in Different Homology Groups (2000)

Posada, David, Crandall, Keith A., Nguyen, Man, Demma, James C., Viscidi, Raphael P.

The porB locus codes for the major outer membrane protein of Neisseria gonorrhoeae. Alleles of this locus have been assigned to two homology groups based on close sequence and immunological...