Extensive homology of chicken macrochromosomes in the karyotypes of Trachemys scripta elegans and Crocodylus niloticus revealed by chromosome painting despite long divergence times

Cytogenetic and Genome Research
Fumio KasaiMalcolm A Ferguson-Smith

Abstract

We report extensive chromosome homology revealed by chromosome painting between chicken (Gallus gallus domesticus, GGA, 2n = 78) macrochromosomes (representing 70% of the chicken genome) and the chromosomes of a turtle, the red-eared slider (Trachemys scripta elegans, TSC, 2n = 50), and the Nile crocodile (Crocodylus niloticus, CNI, 2n = 32). Our data show that GGA1-8 arms seem to be conserved in the arms of TSC chromosomes, GGA1-2 arms are separated and homologous to CNI1p, 3q, 4q and 5q. In addition to GGAZ homologues in our previous study, large-scale GGA autosome syntenies have been conserved in turtle and crocodile despite hundreds of millions of years divergence time. Based on phylogenetic hypotheses that crocodiles diverged after the divergence of birds and turtles, our results in CNI suggest that GGA1-2 and TSC1-2 represent the ancestral state and that chromosome fissions followed by fusions have been the mechanisms responsible for the reduction of chromosome number in crocodiles.

References

Jan 1, 1970·Cytogenetics·M M Cohen, C Gans
Feb 12, 1999·Science·S B Hedges, L L Poling
Nov 20, 2002·Cytogenetic and Genome Research·D W Burt
Sep 20, 2005·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Yoichi MatsudaKiyokazu Agata
Feb 20, 2007·Proceedings of the National Academy of Sciences of the United States of America·Andrew M ShedlockScott V Edwards
Apr 5, 2007·Nature Protocols·Willem RensMalcolm Ferguson-Smith
Nov 17, 2007·Nature Reviews. Genetics·Malcolm A Ferguson-Smith, Vladimir Trifonov
Jun 11, 2010·Biology Letters·Tyler R LysonJacques A Gauthier
Jun 8, 2011·Evolution; International Journal of Organic Evolution·Nicole Valenzuela, Dean C Adams

❮ Previous
Next ❯

Citations

Mar 5, 2014·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Martina PokornáLukáš Kratochvíl
Mar 26, 2014·Chromosoma·Janine E Deakin, Tariq Ezaz
Apr 4, 2014·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Pamela E LithgowDarren K Griffin
Feb 13, 2016·Genomics & Informatics·Kornsorn SrikulnathNarongrit Muangmai
Sep 16, 2015·Journal of the American Academy of Dermatology·Monica EnamandramAlexandra B Kimball
Feb 11, 2015·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Martina Johnson PokornáLukáš Kratochvíl
Mar 9, 2018·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Fumio KasaiMalcolm A Ferguson-Smith
Mar 27, 2015·Molecular Cytogenetics·Malcolm A Ferguson-Smith
Mar 25, 2019·Cytogenetic and Genome Research·Fumio KasaiMalcolm A Ferguson-Smith

❮ Previous
Next ❯

Related Concepts

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.

Blastomycosis

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.

Microbicide

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.