Molecular evidence for hybridization between two Australian desert skinks, Ctenotus leonhardii and Ctenotus quattuordecimlineatus (Scincidae: Squamata)

Molecular Phylogenetics and Evolution
Daniel L RaboskyIrby J Lovette

Abstract

Australian scincid lizards in the genus Ctenotus constitute the most diverse vertebrate radiation in Australia. However, the evolutionary processes that have generated this diversity remain elusive, in part because both interspecific phylogenetic relationships and phylogeographic structure within Ctenotus species remain poorly known. Here we use nucleotide sequences from a mitochondrial locus and two nuclear introns to investigate broad-scale phylogeographic patterns within Ctenotus leonhardii and C. quattuordecimlineatus, two geographically widespread species of skinks that were found to have a surprisingly close genetic relationship in a previous molecular phylogenetic study. We demonstrate that the apparent close relationship between these ecologically and phenotypically distinct taxa is attributable to mitochondrial introgression from C. quattuordecimlineatus to C. leonhardii. In the western deserts, Ctenotus leonhardii individuals carry mtDNA lineages that are derived from C. quattuordecimlineatus mtDNA lineages from that geographic region. Coalescent simulations indicate that this pattern is unlikely to have resulted from incomplete lineage sorting, implicating introgressive hybridization as the cause of this regional gen...Continue Reading

References

Oct 2, 2002·Evolution; International Journal of Organic Evolution·Richard R Hudson, Jerry A Coyne
Feb 13, 2004·Marine Biotechnology·Simon N JarmanNicholas G Elliott
May 11, 2006·PLoS Biology·Alexei J DrummondAndrew Rambaut
May 11, 2007·Proceedings. Biological Sciences·Jonathan Q Richmond, Elizabeth L Jockusch
Oct 19, 2007·Evolution; International Journal of Organic Evolution·Jimmy A McGuireJef R Jaeger
Nov 13, 2007·BMC Evolutionary Biology·Alexei J Drummond, Andrew Rambaut
Jan 17, 2009·Evolution; International Journal of Organic Evolution·Scott V Edwards
May 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Todd A CastoeDavid D Pollock

Citations

Aug 16, 2012·Molecular Ecology·Julian R DupuisFelix A H Sperling
Apr 16, 2014·Molecular Phylogenetics and Evolution·Daniel L RaboskyIrby J Lovette
Sep 15, 2019·Molecular Phylogenetics and Evolution·Christophe DufresnesSpartak Litvinchuk

Related Concepts

Cell Nucleus
DNA, Mitochondrial
Human Geography
Hybridization, Intraspecies
Introns
Lizards
Phylogeny
Sequence Determinations, DNA
Evolution, Molecular
Base Sequence

Trending Feeds

COVID-19

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.

Alzheimer's Disease: MS4A

Variants within the membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease in genome-wide association studies. Here is the latest research on Alzheimer's disease and MS4A.

Pediculosis pubis

Pediculosis pubis is a disease caused by a parasitic insect known as Pthirus pubis, which infests human pubic hair, as well as other areas with hair including eye lashes. Here is the latest research.

Rh Isoimmunization

Rh isoimmunization is a potentially preventable condition that occasionally is associated with significant perinatal morbidity or mortality. Discover the latest research on Rh Isoimmunization here.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells. It also follows CRISPR-Cas9 approaches to generating genetic mutants as a means of understanding the effect of genetics on phenotype.

Enzyme Evolution

This feed focuses on molecular models of enzyme evolution and new approaches (such as adaptive laboratory evolution) to metabolic engineering of microorganisms. Here is the latest research.

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.

Pharmacology of Proteinopathies

This feed focuses on the pharmacology of proteinopathies - diseases in which proteins abnormally aggregate (i.e. Alzheimer’s, Parkinson’s, etc.). Discover the latest research in this field with this feed.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.