PMID: 7910968May 24, 1994Paper

Nuclear and mitochondrial gene genealogies and allozyme polymorphism across a major phylogeographic break in the copepod Tigriopus californicus

Proceedings of the National Academy of Sciences of the United States of America
R S Burton, B N Lee


The genetic structure of natural populations is frequently inferred from geographic distributions of alleles at multiple gene loci. Surveys of allozyme polymorphisms in the tidepool copepod Tigriopus californicus have revealed sharp genetic differentiation of populations, indicating that gene flow among populations is highly restricted. Analysis of population structure in this species has now been extended to include nuclear and mitochondrial gene genealogies. DNA sequences of the mtDNA-encoded cytochrome-c oxidase subunit I gene from 21 isofemale lines derived from seven populations reveal a phylogeographic break between populations north and south of Point Conception, California, with sequence divergence across the break exceeding 18%, the highest level of mtDNA divergence yet reported among conspecific populations. Divergence between populations based on 22 sequences of the nuclear histone H1 gene is geographically concordant with the mitochondrial sequences. In contrast with previously studied nuclear genes in other sexually reproducing metazoans, the H1 gene genealogy from T. californicus shows no evidence of recombination. The apparent absence of intragenic recombinants probably results from the persistent lack of gene fl...Continue Reading


Oct 1, 1982·Genetical Research·L D Mueller, F J Ayala
Oct 15, 1993·Proceedings of the National Academy of Sciences of the United States of America·G BernardiD A Powers

❮ Previous
Next ❯


Sep 12, 2003·Molecular Phylogenetics and Evolution·Jennifer M HayLinda R Maxson
Nov 28, 2002·Molecular Ecology·T L ShearerG Wörheide
Oct 10, 2008·Proceedings of the National Academy of Sciences of the United States of America·Christopher K Ellison, Ronald S Burton
Sep 21, 2012·Molecular Biology and Evolution·Felipe S Barreto, Ronald S Burton
May 24, 2001·Molecular Biology and Evolution·A Rocha-OlivaresD W Foltz
Nov 26, 2002·Molecular Biology and Evolution·P PresaL Bernatchez
Jun 10, 2011·Proceedings. Biological Sciences·Morgan W KellyRichard K Grosberg
Sep 17, 2011·Proceedings. Biological Sciences·Osamu MiuraRyan F Hechinger
Aug 11, 2000·Evolution; International Journal of Organic Evolution·G Bernardi
Oct 3, 2001·Evolution; International Journal of Organic Evolution·C S Willett, R S Burton
Jan 8, 2010·International Journal of Molecular Sciences·Stefania ManiatsiTheodore J Abatzopoulos
Sep 25, 2002·Proceedings of the National Academy of Sciences of the United States of America·Paul D Rawson, Ronald S Burton
Sep 13, 2005·Evolution; International Journal of Organic Evolution·Ron J EtterJoseph M Quattro
May 21, 2009·Evolution; International Journal of Organic Evolution·Suzanne EdmandsAnnmarie S Hwang
Nov 25, 2003·Evolution; International Journal of Organic Evolution·Timothy B SacktonDavid M Rand
Nov 25, 2003·Evolution; International Journal of Organic Evolution·Christopher S Willett, Ronald S Burton
Nov 25, 2003·Evolution; International Journal of Organic Evolution·Suzanne Edmands, J Scott Harrison
Oct 17, 2006·Journal of Evolutionary Biology·J S Harrison, S Edmands

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.